Hughes
Brothers, Inc.
Seward, NE
D AV I T A R M S
Steel Davit Arms
Hughes Brothers Steel
Davit Arms
Each Hughes Brothers Steel Davit is assigned a serial number
at the time of manufacture. This allows us to trace material,
welding and other manufacturing procedures. After producing
over 100,000 steel davit arms since the late 1970's we have
yet to have a single failure. Davits can be custom designed for
a particular application.
100% mechanical proof loading and magnetic particle
verification of critical welds per ASTM E709, in conjunction
with ANSI / AWS D1.1 are available as quality control options.
Our standard production procedure utilizes mil-standard 105D
sampling for proof load testing unless specified otherwise.
Hughes Brothers provides Steel Davits for use on wood,
concrete or steel poles.
Ordering Information
This catalog section will help you determine which base plate
& phase attachment option are most suited to your individual
application.
Typical cross section of Davit tubes
4000/4010
See pages
G-2 to G-5
4020/4030
See pages
G-6 to G-9
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-1
Steel Davit Arms
4000 Series, 16o Rise Angle,
Heavy Duty Steel Davit Arms
Length
Rise
See page G-16 for
end plate options
Clearance
+
16 o
7"
See pages G-10
thru G-13 for base
plate options
Approximate Approximate
Insulator
Clearance Clearance
String @=45 @=30
Length
Swing Angle
Swing Angle
2'-0"
3'-0"
4'-0"
5'-0"
6'-0"
7'-0"
G-2
1'-6 1/2"
2'-1"
2'-6"
3'-0"
3'-6"
4'-0"
1'-11"
2'-8"
3'-5"
4'-1"
4'-9"
5'-6"
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Steel Davit Arms
4000 Series
Stock No.
Arm Length
4000A3.5A33g 3'-6"
4000A4.0A33g 4'-0"
4000a4.5a33g 4'-6"
4000a5.0a33g 5'-0"
4000a5.5a33g 5'-6"
4000a6.0a33g 6'-0"
4000a6.5a33g 6'-6"
Rise
Approx. Wt. (lbs.)
0'-5"
65
0'-9"
75
0'-7"
0'-11"
1'-1"
1'-3"
120
2'-1"
135
1'-11"
4000a9.0a33g 9'-0"
2'-3"
4000a10.0a33g 10'-0"
4000a10.5a33g 10'-6"
4000a11.0a33g 11'-0"
Ordering Options
Example: 4000 A 10.5 A 33 G
95
1'-9"
4000a8.0a33g 8'-0"
4000a9.5a33g 9'-6"
90
105
1'-7"
4000a8.5a33g 8'-6"
80
1'-5"
4000a7.0a33g 7'-0"
4000a7.5a33g 7'-6"
70
2'-5"
2'-7"
2'-9"
2'-11"
115
130
145
150
160
170
185
(G = Galvanized)
Coating (W = Self Weathering)
(P = Painted)
Material Strength (KSI)
See Page G-18 for load ratings
Base Plate Design
See Pages G-10 thru G-13
Length (feet)
Phase Attachment Designs
See Page G-16
Tube Style & Rise
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-3
Steel Davit Arms
4010 Series, 24 Rise Angle,
Heavy Duty Steel Davit Arms
Length
Rise
See page G-16 for
end plate options
Clearance
24o
7"
See pages G-10
thru G-13 for base
plate options
Approximate
Approximate
Insulator Clearance Clearance
String @=45 @=30
Length
Swing Angle
Swing Angle
G-4
2' - 0"
3' - 0"
4' - 0"
5' - 0"
6' - 0"
7' - 0"
1' - 4 1/2"
1' - 9"
2' - 1 1/2"
2' - 6"
2' - 10 1/2"
3' - 3"
1' - 9 1/4"
2' - 5"
3' - 0"
3' - 7"
4' - 2"
4' - 9"
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Steel Davit Arms
4010 Series
Stock No
Arm Length
Rise
4010A3.5A33g
3'-6"
0'-11"
4010a4.5a33g
4'-6"
1'-5"
4010a4.0a33g
4010a5.0a33g
4'-0"
5'-0"
1'-2"
Approx. Wt. (lbs.)
65
70
75
1'-7"
80
2'-0"
95
4010a5.5a33g
5'-6"
1'-10"
4010a6.5a33g
6'-6"
2'-3"
105
2'-8"
120
4010a6.0a33g
4010a7.0a33g
4010a7.5a33g
4010a8.0a33g
4010a8.5a33g
4010a9.0a33g
4010a9.5a33g
4010a10.0a33g
4010a10.5a33g
4010a11.0a33g
6'-0"
7'-0"
7'-6"
2'-5"
8'-0"
2'-10"
9'-0"
3'-3"
8'-6"
9'-6"
10'-0"
10'-6"
11'-0"
Ordering options
Example: 4010 A 10.5 A 33 G
3'-1"
3'-6"
3'-8"
3'-11"
4'-1"
90
115
130
135
145
150
160
170
185
(G = Galvanized)
Coating (W = Self Weathering)
(P = Painted)
Material Strength (KSI)
See Page G-18 for load ratings
Base Plate Design
See Pages G-10 thru G-13
Length (feet)
Phase Attachment Designs
See Page G-16
Tube Style & Rise
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-5
Steel Davit Arms
4020 Series, 16o Rise Angle,
Medium Duty Steel Davit Arms
Length
Rise
See page G-16 for
end plate options
Clearance
7"
16
See pages G-10
thru G-13 for base
plate options
Approximate
Approximate
Insulator Clearance Clearance
String @=45 @=30
Length
Swing Angle
Swing Angle
G-6
2' - 0"
3' - 0"
4' - 0"
5' - 0"
6' - 0"
7' - 0"
1' - 6 7/8"
2' - 1"
2' - 6 1/2"
3' - 0 1/4"
3' - 6"
4' - 0"
1' - 11 1/8"
2' - 8 1/4"
3' - 5"
4' - 1 1/4"
4' - 9 1/2"
5' - 6"
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Steel Davit Arms
4020 Series
Stock No.
Arm Length
4020A3.5A33g
4020a4.0a33g
4020a4.5a33g
Rise
3'-6"
4'-0"
4'-6"
0'-5"
0'-7"
0'-9"
4020a5.0a33g
5'-0"
0'-11"
4020a6.0a33g
6'-0"
1'-3"
4020a5.5a33g
4020a6.5a33g
4020a7.0a33g
4020a7.5a33g
5'-6"
6'-6"
7'-0"
7'-6"
1'-1"
1'-5"
4020a9.0a33g
9'-0"
2'-3"
4020a10.0a33g
4020a10.5a33g
4020a11.0a33g
9'-6"
10'-0"
10'-6"
11'-0"
Ordering Options
Example: 4020 A 10.5 A 33 G
70
75
85
90
95
120
1'-9"
1'-11"
4020a9.5a33g
65
105
8'-0"
8'-6"
60
1'-7"
4020a8.0a33g
4020a8.5a33g
Approx. Wt. (lbs.)
2'-1"
2'-5"
2'-7"
2'-9"
2'-11"
110
125
135
140
145
150
160
(G = Galvanized)
Coating (W = Self Weathering)
(P = Painted)
Material Strength (KSI)
See Page G-19 for load ratings
Base Plate Design
See Pages G-10 thru G-13
Length (feet)
Phase Attachment Designs
See Page G-16
Tube Style & Rise
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-7
Steel Davit Arms
4030 Series, 24 Rise Angle,
Medium Duty Steel Davit Arms
Length
Rise
See page G-16 for
end plate options
Clearance
24o
7"
See pages G-10
thru G-13 for base
plate options
Approximate
Approximate
Insulator Clearance Clearance
String @=45 @=30
Length
Swing Angle
Swing Angle
G-8
2' - 0"
3' - 0"
4' - 0"
5' - 0"
6' - 0"
7' - 0"
1' - 4 1/2"
1' - 9"
2' - 1 1/2"
2' - 6"
2' - 10 1/2"
3' - 3"
1' - 9 1/4"
2' - 5"
3' - 0"
3' - 7"
4' - 2"
4' - 9"
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Steel Davit Arms
4030 Series
Stock No.
Arm Length
Rise
Approx. Wt. (lbs.)
4030A3.5A33g
3'-6"
0'-11"
4030a4.5a33g
4'-6"
1'-5"
4030a4.0a33g
4030a5.0a33g
4'-0"
5'-0"
1'-2"
2'-0"
90
1'-10"
4030a6.5a33g
6'-6"
2'-3"
4030a7.0a33g
4030a7.5a33g
4030a8.0a33g
4030a8.5a33g
4030a9.0a33g
4030a9.5a33g
7'-0"
70
75
5'-6"
6'-0"
65
1'-7"
4030a5.5a33g
4030a6.0a33g
60
85
95
2'-5"
105
8'-0"
2'-10"
120
9'-0"
3'-3"
7'-6"
8'-6"
9'-6"
4030a10.0a33g 10'-0"
4030a10.5a33g 10'-6"
4030a11.0a33g 11'-0"
Ordering options
Example: 4030 A 10.5 A 33 G
2'-8"
3'-1"
3'-6"
110
125
135
140
3'-8"
145
4'-1"
160
3'-11"
150
(G = Galvanized)
Coating (W = Self Weathering)
(P = Painted)
Material Strength (KSI)
See Page G-19 for load ratings
Base Plate Design
See Pages G-10 thru G-13
Length (feet)
Phase Attachment Designs
See Page G-16
Tube Style & Rise
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-9
Steel Davit Arms
Base Plate Options
See Table A on page G-17
Base Plate
Many variations of base plate options are
available. Consult Hughes Brothers Engineering
Staff before ordering.
Bearing Plate
14"
7/8" mounting bolts, nuts and
washers sold separately.
9" pole dia. min.
Base Plate
Bearing Plate
Styles A & B work equally well on concrete poles.
14"
1" mounting bolts,
nuts and washers
sold separately.
9" pole dia. min.
G-10
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Steel Davit Arms
C4488.1*
Base Plate Options
See Table A on page G-17
Bearing Plate
Base Plate
Many variations of base plate options are
available. Consult Hughes Brothers Engineering
Staff before ordering.
14"
Shim & Shim bolt as required.
Ordered separately.
1" threaded rods, nuts and
washers sold separately.
Option C works equally well on concrete poles.
Option C in double circuit configuration on wood pole.
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-11
Steel Davit Arms
Base Plate Options
See Table A on page G-17
Bend angle to be
specified. See table B
on page G-17
Many variations of base plate options are
available. Consult Hughes Brothers Engineering
Staff before ordering.
14"
7/8" mounting bolts,
nuts and washers
sold separately.
Bend angle to be
specified. See table
B on page G-17
14"
1" mounting bolts,
nuts and washers
sold separately.
Bend angle to be
specified. See table B
on page G-17
7/8" mounting bolts,
nuts and washers
sold separately.
12-1/4"
2-1/2"
4"
Options D & E shown here in a steel
pole application.
Minimum pole diameter= 15".
G-12
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Steel Davit Arms
Base Plate Options
See Table A on page G-17
Specify
Specify
Specify
Many variations of base plate options are
available. Consult Hughes Brothers Engineering
Staff before ordering.
K
1" mounting bolts, nuts and washers,
ordered separately
5/8" Base Plate
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-13
Steel Davit Arms
C4485-V Steel Davit Arm
12 Sided Steel Pole
"W"
1'-2"
1" A325 Mounting Bolt,
(1) Nut, (1) Sq. Washer,
and (1) MF Locknut
(Ordered Separately)
12 Sided Pole
Base Plate "W" Pole Dia. Range
Code
Width
(Flat-Flat)
A
4"
10" - 16"
B
5"
14" - 20"
C
6"
16" - 24"
D
7"
17" - 28"
1'-2"
1" A325 Threaded Rod,
(4) Nuts, (2) Sq. Washers,
and (4) MF Locknuts
(Ordered Separately)
Ordering Example
C4485- V4.0 A 65 G
G-14
Finish
Material Code
Base Plate
Arm Length Code
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Steel Davit Arms
C4668-A Steel Davit Arm
Specify Pole
Dia. Code
3/8" x 5"
Band Section
5/8" Base Plate
*Pole Dia. Code
A
B
C
D
E
10"-12"
12"-14"
14"-16"
16"-18"
18"-20"
Ordering Example
3/8" x 4"
Band Section
C4668- A C 8.0 MS
**
Material Code Suffix
Arm Length
Pole Dia. Code
**
Material Code Suffix
MS= Mild Steel
CT= Cor-Ten Steel
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-15
Steel Davit Arms
Phase Attachment Options
4-3/8"
1-1/2" hole chamfered
both sides.
4-3/8"
5-1/2"
4-3/4" 4-3/4"
1-1/2" holes chamfered
both sides.
4-3/8"
1-1/2" hole chamfered
both sides.
2821 Swinging Angle
Bracket
4-3/4" 4-3/4"
5-1/2"
1-1/2" holes chamfered
both sides.
AT
G-16
1-1/2" holes chamfered
both sides.
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Strength Tables
Ultimate Vertical Strength Based on ANSI C135.1
Bolt Strength and 14" Base Plate Bolt Spacing
TABLE A
Base Plate Configuration Type
Arm
Length
A&D
B, C, & E
F
(feet)
(2) 7/8" Bolts
(2) 1" Bolts
(3) 7/8" Bolts
T=25,400 lbs each T=33,500 lbs each T=25,400 lbs each
3.0 9860 13010 17000
3.5 8450 11150 14500
4.0 7400 9760
12900
4.5 6575
8670
11500
Design Note: Check both the ultimate
5.0 5910
7800
10300
tube strength and the ultimate strength
5.5 5370 7100
9400
based on bolt strengths.
6.0 4920 6500
8600
6.5 4550 6000
7900
7.0 4210 5580
7400
7.5 3950 5200
6900
8.0 3700 4870
6450
8.5 3470 4580
6100
9.0 3280 4330
5700
9.5 3100 4100
5450
10.0 2950 3900
5170
10.5 2810 3710
4920
11.0 2680 3550
4700
Contact Hughes Brothers Engineering Dept. for ultimate strengths based on other types of bolts.
TABLE B
Base Plate Bend Angles
Davit Series
4020 & 4030
4000 & 4010
Base Plate Bend Pole Dia.
Angle Designation
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
7"
8"
9"
10"
11"
12"
9"
10"
11"
12"
13"
14"
16"
18"
20"
22"
Bend Angle
(degrees)
60
55
47
44
40
36
68
63
58
54
50
47
42
37
30
30
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-17
Steel Davit Arms
TABLE C
Strength Table
4000 / 4010 Series Steel Davits
Ultimate Tube Strength, lb.
(Based on yield strength of steel)
Arm
Vertical
Length
(feet) 80KSI 65ksi 50ksi 36ksi 33ksi 80ksi
Longitudinal
65ksi 50ksi 36ksi 33ksi
3.0 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
3.5 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
4.0 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
4.5 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
5.0 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
5.5 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
6.0 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
6.5 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
7.0 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
7.5 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
8.0 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
8.5 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
9.0 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
9.5 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
10.0 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
10.5 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
11.0 7550 6150 4700 3500 3100 6250 5000 3900 2800 2550
NOTE:
Check both the ultimate tube strength and the ultimate bolt strength.
The ultimate strength of the complete unit is the lesser of the two strengths.
G-18
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Steel Davit Arms
TABLE C
(cont'd)
Strength Table
4020 / 4030 Series Steel Davits
Ultimate Tube Strength, lb.
(Based on yield strength of steel)
Arm
Vertical
Length
(feet) 80KSI 65ksi 50ksi 36ksi 33ksi 80ksi
65ksi 50ksi 36ksi 33ksi
4810
4400
4100
3860
3620
3520
3390
3280
3190
3110
3040
2970
2920
2870
2820
2780
2750
3.0 6550
3.5 6550
4.0 6550
4.5 6550
5.0 6550
5.5 6550
6.0 6550
6.5 6550
7.0 6550
7.5 6550
8.0 6550
8.5 6550
9.0 6550
9.5 6550
10.0 6550
10.5 6550
11.0 6550
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
5350 4100
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
2700 5920
2700 5420
2700 5050
2700 4760
2700 4520
2700 4330
2700 4170
2700 4040
2700 3920
2700 3820
2700 3740
2700 3660
2700 3590
2700 3530
2700 3480
2700 3430
2700 3380
Longitudinal
3700 2660 2440
3390 2440 2230
3150 2270 2080
2970 2140 1960
2820 2030 1860
2710 1950 1780
2610 1880 1720
2520 1820 1660
2450 1760 1620
2390 1720 1580
2330 1680 1540
2290 1640 1510
2240 1610 1480
2210 1590 1450
2170 1560 1430
2140 1540 1410
2110 1520 1390
NOTE:
Check both the ultimate tube strength and the ultimate bolt strength.
The ultimate strength of the complete unit is the lesser of the two strengths.
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-19
Steel Davit Arms
C4484-C Static Support Arm
Hughes Brothers C4484-C Static Support Arms are used to offset the
shield wire a greater distance from the pole. Tube sizes can be changed
to accommodate load requirements, and other base and end fittings are
possible. Contact Hughes Brothers Engineering staff for assistance.
"L"
9" to 4'-0"
Ultimate Vertical
Stock No.
"L" Rise
Strength
C4484-C9
9" 3-1/2" 9,000 lbs.
C4484-C12 12"
4"
6,700 lbs.
C4484-C14 14" 4-3/8" 5,700 lbs.
C4484-C16 16" 4-5/8" 5,000 lbs.
C4484-C18 18"
5"
4,500 lbs.
C4484-C24 24"
6"
3,300 lbs.
C4484-C27 27" 6-5/8" 3,000 lbs.
C4484-C30
30" 7-3/8" 2,700 lbs.
C4484-C36
36" 8-1/8" 2,200 lbs.
C4484-C42
42" 9-1/4" 1,900 lbs.
C4484-C48
48" 10-3/8" 1,600 lbs.
10o
"Rise"
12"
7/8" mounting
bolts
5/8" x 2-3/8"
Grounding Lug (optional)
End Plate
1-1/2" Fabrication
Drain Hole
1-1/4" Hole
(chamfered both sides)
Ordering Example
C4484- C "L" G
Grounding Lug (optional)
"L" Length in inches
G-20
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Updated
Steel Davit Arms
PAGE in 2014
C4484-CDE Static Support Arm
The C4484-CDE Static Support Arms steel are used to offset the shield wire a greater distance
from the pole. Tube sizes can be changed to accommodate load requirements and other base
and end fittings are possible. Contact Hughes Brothers Engineering staff for assistance.
"L"
Welded
12"
Welded
"Rise"
10o
5/8" Ground Lug
CW80
Curved
Washer
7/8" Bolt & Locknut
(Ordered Separately)
Ultimate Vertical
Stock No.
"L"
Rise
Strength
C4484-CDE6
6"
3"
17,250 lbs.
C4484-CDE9
9"
3-1/2" 11,500 lbs.
C4484-CDE12 12"
4"
8,600 lbs.
C4484-CDE14 14" 4-3/8" 7,300 lbs.
C4484-CDE16 16" 4-3/4" 6,400 lbs.
C4484-CDE18 18"
5"
5,700 lbs.
C4484-CDE24 24"
6"
4,300 lbs.
C4484-CDE27
27" 6-5/8" 3,800 lbs.
C4484-CDE30
30" 7-3/8" 3,400 lbs.
C4484-CDE36
36" 8-1/8" 2,800 lbs.
C4484-CDE42
42" 9-1/4" 2,400 lbs.
C4484-CDE48 48" 10-3/8" 2,100 lbs.
1-1/2" Fabrication
Drain Hole
1-1/2" Hole, typical
(Chamfered both sides)
Ordering Example:
C4484-CDE-12 G W
Add W for Cor-Ten Weathering Steel
Add G for Ground Lug Welded to Base Plate
"L" Length (inches)
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-21
Steel Davit Arms
C4484 Distribution
Underbuild Arms
Hughes Brothers C4484 Series of Distribution Underbuild Arms
are manufactured from tube steel. The tube size varies with
loading requirements. Contact Hughes Brothers Engineering
staff for assistance.
7/8" Bolts, Nuts & Washers
(ordered separately)
12"
"DET" Suffix
"A"
3"
Length
13/16"
All vangs have a 1-1/4" hole
chamfered both sides.
13/16"
See note*
Ordering Example
C4484-B4.5A
Base Plate Code Suffix
*Take off link available as an option by adding
suffix "DET" as follows: C4484-BDET4.5A
G-22
Base Plate
Type
Pole Dia.
Range
A
B
C
D
E
F
15"-18"
18"-21"
21"-24"
24"-28"
12"-15"
26"-31"
Stock No. Length "A"
C4484-B4.0 4' - 0" 2' - 0"
C4484-B4.5 4' - 6" 2' - 3"
C4484-B5.5 5' - 6" 3' - 3"
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Steel Davit Arms
C4466 Post Insulator
Stand-Off Arm
L
13/16" Hole
Insulator
Mtg. Hole
Hughes Brothers C4466 Series of Line Post
Insulator Stand-Off Arms are used for special
applications requiring a 1 ft. to 3 ft. clearance
from the pole.
13/16"
Hole
Post Insulator
(by others)
Stock No.
Wt./lbs.
C4466-B1.0
C4466-B1.25
C4466-B1.5
C4466-B1.75
12"
15"
18"
21"
10"
10"
10"
10"
2"
2"
2"
2"
4"
4"
4"
4"
33
35
37
39
C4466-B2.0
C4466-B2.25
24"
27"
12"
12"
2"
2"
5"
5"
43
46
C4466-B2.5
C4466-B2.75
C4466-B3.0
30"
33"
36"
12"
12"
12"
2"
2"
2"
5"
5"
5"
49
52
55
Ordering Example:
C4466-B1.75A
"A" for 13/16" ins. mtg. hole
"B" for 15/16" ins. mtg. hole
Length "L" in feet
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-23
Steel Davit Arms
C4080 Series, Medium
Duty Wood Davit Arm
The Hughes Brothers C4080 Series Wood Davits make
a visually pleasing structure. Manufactured using
ANSI 05.2 Douglas-fir Glu-laminated timbers which are
penta treated and assembled to a steel base. A variety
of conductor attachment configurations are available.
The unit mounts with (3) 7/8" mounting bolts (ordered
separately).
Length
6"
1-1/2"
Eyebolt
5000 lbs
Ultimate
Vertical
Rating
Radius
Rise
3/4" Bolt
G-24
Stock No.
Arm Size
Length
Radius
"X"
Rise
Unit Wt.
C4080-B 4.5
C4080-B 5.0
C4080-A 5.5
C4080-A 6.0
C4080-A 6.5
C4080-A 7.0
C4080-A 7.5
C4080-A 8.0
C4080-A 8.5
C4080-A 9.0
5 1/8" x 5 " - 8 "
5 1/8" x 5 " - 8 1/4"
5 1/8" x 5 3/4" - 8 1/2"
5 1/8" x 5 3/4" - 8 3/4"
5 1/8" x 5 3/4" - 9"
5 1/8" x 5 3/4" - 9 1/4"
5 1/8" x 6 7/8" - 9 1/2"
5 1/8" x 6 7/8" - 9 3/4"
5 1/8" x 6 7/8" - 9 7/8"
5 1/8" x 6 7/8" - 10 1/8"
4' - 6"
5' - 0"
5' - 6"
6' - 0"
6' - 6"
7' - 0"
7' - 6"
8' - 0"
8' - 6"
9' - 0"
10' - 7"
11' - 7"
12' - 7"
13' - 7"
14' - 7"
15' - 7"
16' - 7"
17' - 7"
18' - 7"
19' - 7"
12"
12"
16"
16"
16"
16"
16"
16"
16"
16"
1' - 10"
1' - 11 1/2"
1' - 11 3/4"
2' - 1 3/8"
2' - 2 7/8"
2' - 4 1/2"
2' - 6"
2' - 7 5/8"
2' - 9 1/2"
2' - 10 3/4"
123 lbs
130 lbs
142 lbs
150 lbs
158 lbs
167 lbs
180 lbs
194 lbs
208 lbs
223 lbs
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Wood Davit Arms
Optional Conductor
Attachment
Configurations
Swinging Angle Bracket
Note:
C4080-C Series, substitute C4080-C
for C4080-A sizes to order swinging
angle bracket.
Dead End Tee
Note:
C4080-D Series, substitute C4080-D
for C4080-A to order with dead end
tee option.
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-25
Wood Davit Arms
C4113 Series, Light
Duty Wood Davit Arm
The Hughes Brothers C4113 Series uses a smaller wood
section for lighter loading criteria.
Length
3/4" mounting
bolts, nuts &
washers ordered
separately
1-1/2"
Eyebolt
2500 lbs
Ultimate
Vertical
Rating
Radius
Rise
Rise
5/8" Bolt
6"
Stock No.
Arm Size
C4113-B 4.5
3 1/8" x 5" - 8"
C4113-B 5.0
3 1/8" x 5" - 8"
C4113-A 5.5
3 1/8" x 5" - 8"
C4113-A 6.0
3 1/8" x 5" - 8"
C4113-A 6.5
3 1/8" x 5" - 8"
C4113-A 7.0 3 1/8" x 5" - 8 1/4"
C4113-A 7.5 3 1/8" x 5" - 8 1/4"
C4113-A 8.0 3 1/8" x 5" - 8 3/4"
C4113-A 8.5
3 1/8" x 5" - 9"
Length
Radius
"X"
Rise
Unit Wt.
4' - 6"
5' - 0"
5' - 6"
6' - 0"
6' - 6"
7' - 0"
7' - 6"
8' - 0"
8' - 6"
10' - 7"
11' - 7"
12' - 7"
13' - 7"
14' - 7"
15' - 7"
16' - 7"
17' - 7"
18' - 7"
12"
12"
16"
16"
16"
16"
16"
16"
16"
1' - 11"
2' - 0 5/8"
2' - 2 1/8"
2' - 3 3/8"
2' - 5 3/8"
2' - 7 1/8"
2' - 9"
2' - 10 7/8"
3' - 0 3/4"
95 lbs
99 lbs
103 lbs
108 lbs
112 lbs
116 lbs
121 lbs
127 lbs
133 lbs
G-26
Hughes Brothers, Inc.
www.hughesbros.com
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
Wood Davit Replacement
Steel Davit Replacement
For Wood Davits
If maintenance is required, one option may be to replace
the wood member with the C4625 or C4619 replacement
davit. The steel tube is furnished to fit in the existing base
fitting used by the wood davit. Contact Hughes Brothers
Engineering staff for assistance.
C4625 Series
C4619 Series
www.hughesbros.com
Hughes Brothers, Inc.
P.O. Box 159 / 210 N 13th / Seward, NE 68434 / Phone (402) 643-2991 / Fax (402) 643-2149
2014 Hughes Brothers, Inc.
G-27
