HUS4
HUS4
SCREW ANCHOR
Technical Datasheet
Update: June-22
HUS4 Screw anchor
Ultimate performance screw anchor for single point fastening
 Anchor version                                                              Benefits
                                                                             - High productivity - less drilling and fewer
                                                         HUS4-H(F)
                                                         (8-16)*               operations than with conventional
                                                                               anchors
                                                                             - ETA approval for cracked and non-
                                                         HUS4-C                cracked concrete
                                                         (8-10)
                                                                             - ETA approval for Seismic C1 and C2
                                                         HUS4-A(F)           - ETA approval for adjustability
                                                         (10-14)               (unscrew-rescrew)
                                                                             - Smaller edge and spacing distance
                                                                             - aBG (DIBt) approval for reusability in
                                                                               fresh concrete ( fck, cube = 10/15/20/25
                                                                               Nmm2) for temporary applications
                                                                             - Three embedment depths for maximum
                                                                               design flexibility and flexible design for
                                                                               concrete cone capacity
                                                                             - No cleaning required size 8 to 14
                                                                             - HUS4-HF and HUS4-AF with multilayer
                                                                               coatings for additional corrosion
                                                                               protection
                                                                             - Through fastening with H, A and C head
                                                                             - Pre-fastening with A head
  Concrete          Concrete        Hollow core   Solid brick   Autoclaved        Static /       Seismic           Fire
(non-cracked)       (cracked)          slabs                     aerated        quasi-static    ETA-C1/C2       resistance
                                                                 concrete
 Installation conditions                                        Other information
 Approvals / certificates
 Description                                 Authority                              No. / date of issue
 European Technical Assessment               DIBt                                   ETA-20/0867 / 14-04-2022
 Fire test report                            DIBt                                   ETA-20/0867 / 14-04-2022
 aBG for temporary fastening                 DIBt                                   Z-21.8-2137 / 21-12-2021
*HUS4-HF not available in size 12
Characteristic resistance
Anchor size                                8                       10                      12                       14                     16
Characteristic resistance
Anchor size                                8                       10                      12                       14                     16
Design resistance
Anchor size                                8                       10                      12                       14                     16
Recommended loads
Anchor size                                8                       10                      12                       14                     16
Updated: Jun-22                                                                                                                                         2
All data in this section applies to:
- Correct setting (See setting instruction)
- No edge distance and spacing influence
- Steel failure
- Minimum base material thickness
- Concrete C 20/25, fck,cube = 25 N/mm²
- αgap = 1,0 (using Hilti seismic filling set)
Anchor size                                         8                10                12                   14
Nominal anchor. depth                             hnom3             hnom3             hnom3                hnom3
                                hnom [mm]
range                                              70                85               100                  115
3                                                                                                    Updated: Jun-22
Design resistance in case of seismic performance category C1
Anchor size                                                8               10                        12              14                 16
 Type                        HUS4                       H,C,HF         H,HF,C,A,AF                   H            H,HF,A,AF            H,HF
                                             hnom2 hnom3                hnom2     hnom3 hnom2 hnom3 hnom2                  hnom3 hnom2 hnom3
with Hilti filling set (αgap = 1,0) (HUS4-H and HUS4-A)
Tension NRd,seis                               6,4   8,2                 9,0       10,9         9,7     13,9      10,5     17,2       5,0    12,7
                                        [kN]
Shear VRd,seis                                12,8  15,0                17,9       21,4        19,5     27,9      18,0     27,6      21,2    20,2
without Hilti filling set (αgap = 0,5)
Tension NRd,seis                               6,4   8,2                 9,0       10,9        9,7      13,9      10,5     17,2       5,0    12,7
                                        [kN]
Shear VRd,seis                                 6,4   7,5                 9,0       10,7        9,7      13,9       9,0     13,8      10,6    10,1
Fire resistance
Updated: Jun-22                                                                                                                                 4
Essential characteristics under fire exposure in concrete for HUS4-H
Fastener size HUS4-H (F)                              12                                                   14                    16
Characteristic        R120          FRk,s,fi       [kN]      2,8       3,0      3,1       3,9           4,2     4,4      4,3          4,5
resistance            R30           M0   Rk,s,fi   [Nm]     11,4      11,6     11,6      18,9          19,2     19,3     23,7         23,9
                      R60           M0   Rk,s,fi   [Nm]      8,4       8,8      8,9      14,1          14,6     14,8     18,1         18,3
                      R90           M0   Rk,s,fi   [Nm]      5,7       6,0      6,2       9,5          10,2     10,7     12,7         13,2
                      R120          M0   Rk,s,fi   [Nm]      4,3       4,6      4,7       7,2           7,7     8,1      9,6          10,0
Pull-out failure
                      R30
Characteristic        R60           N0Rk,c,fi      [kN]      2,6      4,2       6,1       2,9           4,5     7,5      4,6          8,7
resistance            R90
                        R120        N0Rk,c,fi      [kN]      2,1      3,4       4,9       2,3           3,6     6,0      3,7          7,0
Concrete cone failure
                      R30
Characteristic        R60           N0Rk,c,fi      [kN]      2,4      5,4       9,8       2,9           6,1     13,9     6,2          19,4
resistance            R90
                      R120          N0Rk,c,fi      [kN]      1,9      4,3       7,8       2,3           4,9     11,1     4,9          15,5
Edge distance
Materials
Mechanical properties
 Anchor size                                                          8           10               12               14                  16
 Nominal tensile strength fuk                       [N/mm2]         758          799              767              728                 622
 Yield strength fyk                                 [N/mm2]         606          639              613              582                 494
 Stressed cross-section As                          [mm2]           47,5         68,9             103              139                 173
 Moment of resistance W                             [mm3]            35           67              130              213                 321
 Characteristic bending resistance M0Rk,s           [Nm]             32           64              120              186                 240
 Material quality
  Type                                                         Material
  HUS4 - H,A,C                                                 Carbon steel, galvanized
  HUS4 - HF,AF                                                 Carbon steel, multi-layer coating a)
 a)   Multi-layer coating provides a higher corrosion resistance compared to regular hot dip galvanized (HDG) systems with a 40μm coating
      thickness.
 5                                                                                                                         Updated: Jun-22
 Head configuration
 Type        Part
 HUS4-H       Hexagonal
 HUS4-HF      head
              Countersunk
 HUS4-C
              head
              External
 HUS4-A
              thread
                             Hilti HUS4-A, size 10 with external thread M12 and size 14 with external thread M16
Anchor size                                                          8                     10
Type                                            HUS4                 C                      C
Outer diameter of the screw thread      dt      [mm]               10,50                  12,70
Countersunk head diameter               dh      [mm]               18,00                  21,00
Length of the screw (min/max)           L       [mm]               55/85                 70/120
Updated: Jun-22                                                                                                         6
                                                                                      HUS4: Hilti Universal Screw 4th
                                                                                      generation
                                                                                      A: Threaded head
                                                                                      10: Screw diameter
                                                                                      100: total length of the screw
                                                                                      8: carbon steel 8.8
                                                                                      K: length of the screw (more info in
                                                                                      ETA)
Setting information
7                                                                                                           Updated: Jun-22
Installation equipment table:
Anchor size                                   8                    10              12         14           16
                                                                                            H,HF, A,
Type                     HUS4-             H,C,HF            H,HF, C, A, AF         H                     H,HF
                                                                                              AF
Rotary hammer                                                       TE4 – TE30
Drill bit for concrete, solid clay
                                          TE-CX 8              TE-CX 10          TE-CX 12   TE-CX 14 TE-CX 16
brick and solid sand-lime brick
Socket wrench insert for hex                                                                SI-S ½“
                                         SI-S ½“ 13S          SI-S ½“ 15S        S ½“ 17S              S ½“ 24S
screw (SW1)                                                                                   21S
Socket wrench insert for                                                                    SI-S ½“
                                              -                SI-S ½“ 8S           -                      -
threaded head screw                                                                           12S
Socket wrench insert for nuts for                                                           SI-S ½“
                                              -               SI-S ½“ 19S           -                      -
threaded head screw (SW2)                                                                     24S
Torx bit for countersunk screw           S-SY TX45            S-SY TX50            -           -           -
Check gauge for reusability 1)             HRG 8               HRG 10            HRG 12     HRG 14       HRG 16
                                                            SIW 22T-A 1/2”
                                                            SIW 22T-A 3/4”              SIW 22T-A 1/2”
                                      SIW 6AT-A22 1/2”
                                                           SIW 6AT-A22 1/2”             SIW 22T-A 3/4”
Setting tool for cracked and un-       SIW 4AT-22 1/2"
                                                            SIW 4AT-22 1/2"              SIW 6-22 1/2”
cracked concrete                     SIW 6-22 1/2” gear 1
                                                             SIW 6-22 1/2”               SIW 8-22 1/2"
                                                          SIW 8-22 1/2" gear 1          SIW 9-A22 3/4”
                                                            SIW 9-A22 3/4”
Setting tool for solid brick and
                                       SIW 6AT-A22 1/2”, SIW 4AT-22 1/2"
aerated concrete
                                                           SIW 6AT-A22 1/2”
                                                           SIW 4AT-22 1/2"                    -
                                      SIW 6AT-A22 1/2”      SIW 22T-A 1/2”
Setting tool for hollow core slab
                                      SIW 4AT-22 1/2"       SIW 22T-A 3/4”
                                                           SIW 6AT-A22 1/2”
1)   For HUS4-A and HUS4-H
Updated: Jun-22                                                                                                   8
Setting parameters
Anchor size
                                                         8                   10                   12                  14                     16
Type                    HUS4
Nominal embedment
                   hnom [mm]                     40      60     70    55     75       85   60     80 100       65      85 115           85        130
depth
Minimum base
                   hmin [mm]                     80     100 120 100 130 140 110 130 150 120 160 200                                  130          195
material thickness
Minimum spacing               smin    [mm]              35                   40                   50                  60                     90
Minimum edge
                              cmin    [mm]              35                   40                   50                  60                     65
distance
Critical spacing for
                              scr,sp [mm]              3 hef               3.3 hef              3.3 hef                       3.3 hef
splitting failure
Critical edge
                              ccr,sp [mm]             1.5 hef              1.65 hef             1.65 hef                     1.65 hef
distance for splitting
Critical spacing for
                              scr,N   [mm]                                                       3 hef
concrete cone failure
Critical edge
distance for concrete         ccr,N   [mm]                                                      1,5 hef
cone failure
For spacing (edge distance) smaller than critical spacing (critical edge distance ) the design loads have to be reduced (see system design
resistance ).
Critical spacing and critical edge distance for splitting failure apply only for non-cracked concrete. For cracked concrete only the critical spacing
and critical edge distance for concrete cone failure are decidive.
9                                                                                                                               Updated: Jun-22
Setting instructions
*For detailed information on installation see instruction for use given with the package of the product
 Setting instruction with adjustment
Updated: Jun-22                                                                                           10
 Basic loading data for temporary application in standard and fresh concrete <28 days old, fck,cube ≥ 10 N/mm2
hnom2 hnom3 hnom1 hnom2 hnom3 hnom1 hnom2 hnom3 hnom1 hnom2 hnom3 hnom1 hnom2
      Nominal
     embedment            hnom          [mm] 75         85        55     75     85     60     80       100    65     85    115    85    115
       depth
     Tension Nrd    fck,cube ≥ 10 N/mm² [kN] 3,3        4,7       3,3    5,3    6,3    2,6   5,4       7,8    4,4   7,0 12,3 5,5 12,6
         =          fck,cube ≥ 15 N/mm² [kN] 4,0        5,7       4,0    6,4    7,8    3,5   7,3 10,6 5,4           8,5 15,0 7,5 17,0
      Shear Vrd
                    fck,cube ≥ 20 N/mm² [kN] 4,6        6,6       4,7    7,4    9,0    4,0   8,4 12,2 6,2           9,9 17,3 8,7 19,7
fck,cube ≥ 25 N/mm² [kN] 5,1 7,4 5,3 8,3 10,1 4,5 9,4 13,6 6,9 11,1 19,3 9,7 22,0
Setting details
11                                                                                                                         Updated: Jun-22
Setting instructions
*For detailed information on installation see instruction for use given with the package of the product example for
size 10 screw
Updated: Jun-22                                                                                                       12
 Basic loading data (for a single anchor) in solid masonry units
 Anchor size                                                         8                   10
 Nominal embedmenth depth                     hnom     [mm]         60                   75
 Drilling diameter for Mz, KS                  d0      [mm]          8                   10
 Drilling diameter for Vbl, PPW, Leca5®        d0      [mm]          6                    8
                                                                    8                    10
                                                                H, C, HF           H, C, HF
 Anchor size
                                 Compressive                                 Nrec
                                                     [N/mm2]
                                strength class                           Tensile loads
                                                      ≥ 12         1,4                   1,4
                       Solid clay brick
                    Mz 12 / 2,0 (EN 771-1)
                                                      ≥ 20         1,8                   1,8
                      Aerated concrete
                                                       ≥6          1,0                   1,6
                    PPW 6-0,4 (EN 771-4)
                                                                    8                    10
                                                                H, C, HF           H, C, HF
 Anchor size
                                 Compressive                                Vrec
                                                     [N/mm2]
                                strength class                           Shear loads
                      Aerated concrete
                                                       ≥6          1,3                   1,5
                    PPW 6-0,4 (EN 771-4)
13                                                                                               Updated: Jun-22
 Permissible anchor location in brick and block walls
Limits
Updated: Jun-22                                                                                                        14
 Basic loading data for single anchor in pre-stressed Hollow core slab (HCS) for permanent fastening
 Anchor size                                                                                   8                                 10
 Nominal embedmenth depth                              hnom               [mm]                 db                                db
 Drilling depth                                         d0                [mm]                            ≥ db + 10 mm
 Characteristic resistance
 Anchor size            HUS4                                          8                                                 10
 Concrete strength                                     C30/37                      C45/55                  C30/37                     C45/55
 Bottom flange
                   db ≥ [mm]                    30        35        40           35      40         30       35        40         35         40
 thickness
  Tension
                          NRk     [kN]          2,0      5,8       7,1           7,1     8,7        2,0     5,8        7,1        7,1       8,7
  loading
Shear loading VRk [kN] 2,0 9,3 11,4 11,4 14,0 2,0 10,2 12,4 12,5 15,2
 Design resistance
 Anchor size                     HUS4                                8                                                  10
 Concrete strength                                     C30/37                      C45/55                 C30/37                      C45/55
 Bottom flange                    [mm]
                 db ≥                           30       35         40           35      40         30       35        40         35        40
 thickness
  Tension                          [kN]
                         NRd                    1,3      3,2       3,9           4,0    4,8         1,3     3,2        3,9       4,0        4,8
  loading
                                   [kN]
  Shear loading          VRd                    1,3      6,2       7,6           7,6    9,3         1,3     6,8        8,3       8,3       10,1
 Recommended loads
 Anchor size         HUS4                                            8                                                  10
 Concrete strength                                     C30/37                     C45/55                  C30/37                      C45/55
 Bottom flange        [mm]
                db ≥                            30       35        40            35      40         30       35        40        35         40
 thickness
  Tension                          [kN]
                        NRec                0,95         2,3       2,8        2,9       3,4       0,95      2,3        2,8       2,9        3,4
  loading
                                   [kN]
  Shear loading         VRec                0,95         4,4       5,4        5,4       6,6       0,95      4,9        5,9       5,9        7,2
With overall partial safety factor for action   γ = 1,4. The partial safety factors for action depend on the type of loading and shall be taken from
national regulations.
15                                                                                                                             Updated: Jun-22
Loads recommendation applies also for installation from top position with no restriction of the admissible anchor
position in case of no reinforcement in the related area
 Anchor size                                                                      8                        10
 Type                                                            HUS4          C, H, HF              C, H, HF, A, AF
 Minimum and characteristic spacing                 smin = scr     [mm]                     4 * db
 Minimum and characteristic edge distance           cmin = ccr     [mm]                     4 * db
 Minimum group distance                             amin           [mm]                     4 * db
Updated: Jun-22                                                                                                        16
             Size      Length      db=30 [mm]           db=35 [mm]           db=40 [mm]           db=50 [mm]
 Anchor
  Type       [mm]       [mm]
                                tfix,min  tfix,max   tfix,min  tfix,max   tfix,min  tfix,max   tfix,min  tfix,max
                                [mm]       [mm]      [mm]       [mm]      [mm]       [mm]      [mm]       [mm]
                         45       5         10         5           5        -           -        -           -
                         55      15          20       15          15        -           -        -           -
                         65       5          30        5          25        5          20        5          10
     HUS4-               75      10         40        10         35        10         30        10          20
              8
      H(F)               85      20          50       20          45       20          40       20          30
                        100      35          65       35          60       35          55       35          45
                        120      55          85       55         80        55         75        55          65
                        150      85         115       85         110       85         105       85          95
                         60       5          20        5          15        5          10        -           -
                         70      15         30        15         25        15         20         -           -
                         80       5          40        5          35        5          30        5          20
     HUS4-               90      10          50       10          45       10          40       10          30
              10
      H(F)              100      20          60       20          55       20          50       20          40
                        110      30          70       30          65       30          60       30          50
                        130      50          90       50          85       50          80       50          70
                        150      70         110       70         105       70         100       70          90
Setting instructions
*For detailed information on installation see instruction for use given with the package of the product
Installation in Hollow core slabs - example size 10
17                                                                                              Updated: Jun-22
 Basic loading data for single anchor in pre-stressed Hollow core slab (HCS) for temporary fastening
 Anchor size                                                 10                       12                  14
 Nominal embed-
                                hnom    [mm]             55 / 75 / 85            60 / 80 / 100       65 / 85 / 115
 menth depth
Updated: Jun-22                                                                                                      18
Recommended load: Concrete C30/37
Anchor size                                                               10                            12                        14
Type                             HUS4                               A, AF, C, H, HF                     H                    A, AF, H, HF
Nom. embedment depth      hnom    [mm]                             55     75      85           60       80       100       65     85    115
 Rec. load, Tension                        NRec           [kN]     6,8     10,5     11,3       8,0     11,4      14,3     8,7      12,6     17,9
 Rec. load, Shear                          VRec           [kN]     7,2     12,0     12,6      11,1     13,5      15,9     12,1     15,0     17,6
With overall partial safety factor for action   γ = 1,4. The partial safety factors for action depend on the type of loading and shall be taken from
national regulations.
19 Updated: Jun-22