Synthes Screw

Reference Chart

Screws, Drill Bits, Taps

and Guide Wires

Original Instruments and Implants of the Association

for the Study of Internal Fixation — AO ASIF
 Screws, Drill Bits and Taps (Self-tapping and Non-self-tapping Screws)
SCREW DIAMETER (mm)

Thread Diameter 1.0 1.3 1.5 2.0 2.4 2.7 3.5 4.0 4.5 6.5
Cortex, self-tapping Cortex Pelvic Shaft Cortex Cancellous Cortex Shaft Malleolar Cancellous
Self-tapping Cortex
Non-self-tapping Non-self-tapping
Non- Self-tapping Self-tapping Non- Non-
and Non- and Non- and Non-
Screw Type --- --- --- and Non- Self-tapping Self-tapping Partial Full and Non- Self-tapping Self-tapping 16 mm 24 mm 32 mm Full
self-tapping self-tapping self-tapping
self-tapping Thread Thread self-tapping Thread Thread Thread Thread

DRILL BIT and TAP DIAMETER (mm)

Drill Bit for

Gliding Hole 1.0 1.3 1.5 2.0 2.4 2.7 3.5 4.0 --- 4.5 4.5
in hard bone

GLIDING HOLE

THREADED HOLE

Drill Bit for

Threaded Hole 0.76 1.0 1.1 1.5 1.8 2.0 2.5 2.9 2.5 3.2 3.2
Tap
(in hard bone and for
non-tapping screws)
--- --- 1.5 2.0 --- 2.7 3.5 4.0 4.0 4.5 6.5
[Item Number] [311.15] [311.19] [311.26] [311.32] [311.400] [311.34] [311.46] [311.66]

1.5 mm/ 1.5 mm/ 2.4 mm 2.5 mm

1.0 mm 1.3 mm 2.5 mm 2.5 mm 3.5 mm 3.5 mm
Drive Type Cruciform Cruciform
2.0 mm 2.0 mm Cruciform Hex
Hex Hex Hex Hex
Cruciform Cruciform T8 T8

Cannulated Screws, Guide Wires, Drill Bits and Taps

SCREW DIAMETER (mm)

Thread Diameter 3.0 3.5 4.0 4.5 6.5 7.0 7.3

Cancellous Cancellous Cancellous Cancellous Cancellous
Screw Type Self-drilling Cortex Self-drilling Self-drilling Self-drilling Cancellous Self-drilling
Self-tapping Self-tapping Self-tapping Self-tapping Self-tapping

Thread Length Short Long Partial Full Short Long Partial Full 16 mm 32 mm Full 16 mm 32 mm Full 16 mm 32 mm Full

GUIDE WIRE, DRILL BIT and TAP DIAMETER (mm)

Guide Wire 1.1 1.25 1.25 1.6 2.8 2.0 2.8
Drill Bit for
Gliding Hole --- 3.5 --- 4.5 7.3 --- 7.3
(in hard bone) [310.495] [310.495]
[Item Number]

GLIDING HOLE

THREADED HOLE

Drill Bit for

Threaded Hole 2.0 2.7 2.7 3.2 5.0 4.5 5.0
Tap
(in hard bone)
--- 3.5 4.0 4.5 7.3 7.0 7.3
[Item Number] [311.39] [311.63] [311.59] [311.689] [311.69] [311.689]

Drive Type 3.0 mm Cruciform 2.5 mm Hex 2.5 mm Hex 3.5 mm Hex 4.0 mm Hex 3.5 mm Hex 4.0 mm Hex

Locking Screws, Guide Wires, Drill Bits and Taps

SCREW DIAMETER (mm)

Thread Diameter 2.4 3.5 4.0 5.0 7.3

Locking Head Locking Head Locking Head Locking Head Conical Head Locking Head Conical Head
Locking
Solid Solid Solid Solid Cannulated Cannulated Cannulated
Screw Type Self-tapping Self-tapping Self-tapping Self-tapping Self-drilling, Self-tapping Self-drilling, Self-tapping Self-drilling, Self-tapping

Thread Length Full Full Full Full Full Partial Full Full Partial

GUIDE WIRE, DRILL BIT and TAP DIAMETER (mm)

Guide Wire and
Threaded Wire Guide --- --- --- --- 2.5 2.5 2.5 2.5 2.5

Drill Bit and

Threaded Drill Guide 1.8 2.8 3.2 4.3 4.3 4.3 5.0 (optional)
(required) (optional) (optional)
Tap
(in hard bone) --- --- --- --- 7.3
[Item Number] [311.682]

Drive Type T8 StarDrive 2.5 mm Hex T15 StarDrive 4.0 mm Hex T25 StarDrive T25 StarDrive 4.0 mm Hex 4.0 mm Hex 4.0 mm Hex

SYNTHES (USA) SYNTHES (CANADA) LTD.

1690 Russell Road 2566 Meadowpine Boulevard
Original Instruments and Implants of the Association Paoli, PA 19301-1262 Mississauga, Ontario L5N 6P9
for the Study of Internal Fixation— AO ASIF Telephone: (610 ) 647-9700 Telephone: (905) 567-0440
Fax: (610 ) 251-9056 Fax: (905) 567-3185
To order: (800 ) 523 -0322 To order: (800) 668-1119
© 2002 SYNTHES (USA) SYNTHES and ASIF are registered trademarks of SYNTHES (USA) and SYNTHES AG Chur Printed in U.S.A. GP0644-C 4/04 J1364-C
 Screws, Drill Bits and Taps (Self-tapping and Non-self-tapping Screws)
SCREW DIAMETER (mm)

Thread Diameter 1.0 1.3 1.5 2.0 2.4 2.7 3.5 4.0 4.5 6.5
Cortex, self-tapping Cortex Pelvic Shaft Cortex Cancellous Cortex Shaft Malleolar Cancellous
Self-tapping Cortex
Non-self-tapping Non-self-tapping
Non- Self-tapping Self-tapping Non- Non-
and Non- and Non- and Non-
Screw Type --- --- --- and Non- Self-tapping Self-tapping Partial Full and Non- Self-tapping Self-tapping 16 mm 24 mm 32 mm Full
self-tapping self-tapping self-tapping
self-tapping Thread Thread self-tapping Thread Thread Thread Thread

DRILL BIT and TAP DIAMETER (mm)

Drill Bit for

Gliding Hole 1.0 1.3 1.5 2.0 2.4 2.7 3.5 4.0 --- 4.5 4.5
in hard bone

GLIDING HOLE

THREADED HOLE

Drill Bit for

Threaded Hole 0.76 1.0 1.1 1.5 1.8 2.0 2.5 2.9 2.5 3.2 3.2
Tap
(in hard bone and for
non-tapping screws)
--- --- 1.5 2.0 --- 2.7 3.5 4.0 4.0 4.5 6.5
[Item Number] [311.15] [311.19] [311.26] [311.32] [311.400] [311.34] [311.46] [311.66]

1.5 mm/ 1.5 mm/ 2.4 mm 2.5 mm

1.0 mm 1.3 mm 2.5 mm 2.5 mm 3.5 mm 3.5 mm
Drive Type Cruciform Cruciform
2.0 mm 2.0 mm Cruciform Hex
Hex Hex Hex Hex
Cruciform Cruciform T8 T8

Cannulated Screws, Guide Wires, Drill Bits and Taps

SCREW DIAMETER (mm)

Thread Diameter 3.0 3.5 4.0 4.5 6.5 7.0 7.3

Cancellous Cancellous Cancellous Cancellous Cancellous
Screw Type Self-drilling Cortex Self-drilling Self-drilling Self-drilling Cancellous Self-drilling
Self-tapping Self-tapping Self-tapping Self-tapping Self-tapping

Thread Length Short Long Partial Full Short Long Partial Full 16 mm 32 mm Full 16 mm 32 mm Full 16 mm 32 mm Full

GUIDE WIRE, DRILL BIT and TAP DIAMETER (mm)

Guide Wire 1.1 1.25 1.25 1.6 2.8 2.0 2.8
Drill Bit for
Gliding Hole --- 3.5 --- 4.5 7.3 --- 7.3
(in hard bone) [310.495] [310.495]
[Item Number]

GLIDING HOLE

THREADED HOLE

Drill Bit for

Threaded Hole 2.0 2.7 2.7 3.2 5.0 4.5 5.0
Tap
(in hard bone)
--- 3.5 4.0 4.5 7.3 7.0 7.3
[Item Number] [311.39] [311.63] [311.59] [311.689] [311.69] [311.689]

Drive Type 3.0 mm Cruciform 2.5 mm Hex 2.5 mm Hex 3.5 mm Hex 4.0 mm Hex 3.5 mm Hex 4.0 mm Hex

Locking Screws, Guide Wires, Drill Bits and Taps

SCREW DIAMETER (mm)

Thread Diameter 2.4 3.5 4.0 5.0 7.3

Locking Head Locking Head Locking Head Locking Head Conical Head Locking Head Conical Head
Locking
Solid Solid Solid Solid Cannulated Cannulated Cannulated
Screw Type Self-tapping Self-tapping Self-tapping Self-tapping Self-drilling, Self-tapping Self-drilling, Self-tapping Self-drilling, Self-tapping

Thread Length Full Full Full Full Full Partial Full Full Partial

GUIDE WIRE, DRILL BIT and TAP DIAMETER (mm)

Guide Wire and
Threaded Wire Guide --- --- --- --- 2.5 2.5 2.5 2.5 2.5

Drill Bit and

Threaded Drill Guide 1.8 2.8 3.2 4.3 4.3 4.3 5.0 (optional)
(required) (optional) (optional)
Tap
(in hard bone) --- --- --- --- 7.3
[Item Number] [311.682]

Drive Type T8 StarDrive 2.5 mm Hex T15 StarDrive 4.0 mm Hex T25 StarDrive T25 StarDrive 4.0 mm Hex 4.0 mm Hex 4.0 mm Hex

SYNTHES (USA) SYNTHES (CANADA) LTD.

1690 Russell Road 2566 Meadowpine Boulevard
Original Instruments and Implants of the Association Paoli, PA 19301-1262 Mississauga, Ontario L5N 6P9
for the Study of Internal Fixation— AO ASIF Telephone: (610 ) 647-9700 Telephone: (905) 567-0440
Fax: (610 ) 251-9056 Fax: (905) 567-3185
To order: (800 ) 523 -0322 To order: (800) 668-1119
© 2002 SYNTHES (USA) SYNTHES and ASIF are registered trademarks of SYNTHES (USA) and SYNTHES AG Chur Printed in U.S.A. GP0644-C 4/04 J1364-C
 Screws, Drill Bits and Taps (Self-tapping and Non-self-tapping Screws)
SCREW DIAMETER (mm)

Thread Diameter 1.0 1.3 1.5 2.0 2.4 2.7 3.5 4.0 4.5 6.5
Cortex, self-tapping Cortex Pelvic Shaft Cortex Cancellous Cortex Shaft Malleolar Cancellous
Self-tapping Cortex
Non-self-tapping Non-self-tapping
Non- Self-tapping Self-tapping Non- Non-
and Non- and Non- and Non-
Screw Type --- --- --- and Non- Self-tapping Self-tapping Partial Full and Non- Self-tapping Self-tapping 16 mm 24 mm 32 mm Full
self-tapping self-tapping self-tapping
self-tapping Thread Thread self-tapping Thread Thread Thread Thread

DRILL BIT and TAP DIAMETER (mm)

Drill Bit for

Gliding Hole 1.0 1.3 1.5 2.0 2.4 2.7 3.5 4.0 --- 4.5 4.5
in hard bone

GLIDING HOLE

THREADED HOLE

Drill Bit for

Threaded Hole 0.76 1.0 1.1 1.5 1.8 2.0 2.5 2.9 2.5 3.2 3.2
Tap
(in hard bone and for
non-tapping screws)
--- --- 1.5 2.0 --- 2.7 3.5 4.0 4.0 4.5 6.5
[Item Number] [311.15] [311.19] [311.26] [311.32] [311.400] [311.34] [311.46] [311.66]

1.5 mm/ 1.5 mm/ 2.4 mm 2.5 mm

1.0 mm 1.3 mm 2.5 mm 2.5 mm 3.5 mm 3.5 mm
Drive Type Cruciform Cruciform
2.0 mm 2.0 mm Cruciform Hex
Hex Hex Hex Hex
Cruciform Cruciform T8 T8

Cannulated Screws, Guide Wires, Drill Bits and Taps

SCREW DIAMETER (mm)

Thread Diameter 3.0 3.5 4.0 4.5 6.5 7.0 7.3

Cancellous Cancellous Cancellous Cancellous Cancellous
Screw Type Self-drilling Cortex Self-drilling Self-drilling Self-drilling Cancellous Self-drilling
Self-tapping Self-tapping Self-tapping Self-tapping Self-tapping

Thread Length Short Long Partial Full Short Long Partial Full 16 mm 32 mm Full 16 mm 32 mm Full 16 mm 32 mm Full

GUIDE WIRE, DRILL BIT and TAP DIAMETER (mm)

Guide Wire 1.1 1.25 1.25 1.6 2.8 2.0 2.8
Drill Bit for
Gliding Hole --- 3.5 --- 4.5 7.3 --- 7.3
(in hard bone) [310.495] [310.495]
[Item Number]

GLIDING HOLE

THREADED HOLE

Drill Bit for

Threaded Hole 2.0 2.7 2.7 3.2 5.0 4.5 5.0
Tap
(in hard bone)
--- 3.5 4.0 4.5 7.3 7.0 7.3
[Item Number] [311.39] [311.63] [311.59] [311.689] [311.69] [311.689]

Drive Type 3.0 mm Cruciform 2.5 mm Hex 2.5 mm Hex 3.5 mm Hex 4.0 mm Hex 3.5 mm Hex 4.0 mm Hex

Locking Screws, Guide Wires, Drill Bits and Taps

SCREW DIAMETER (mm)

Thread Diameter 2.4 3.5 4.0 5.0 7.3

Locking Head Locking Head Locking Head Locking Head Conical Head Locking Head Conical Head
Locking
Solid Solid Solid Solid Cannulated Cannulated Cannulated
Screw Type Self-tapping Self-tapping Self-tapping Self-tapping Self-drilling, Self-tapping Self-drilling, Self-tapping Self-drilling, Self-tapping

Thread Length Full Full Full Full Full Partial Full Full Partial

GUIDE WIRE, DRILL BIT and TAP DIAMETER (mm)

Guide Wire and
Threaded Wire Guide --- --- --- --- 2.5 2.5 2.5 2.5 2.5

Drill Bit and

Threaded Drill Guide 1.8 2.8 3.2 4.3 4.3 4.3 5.0 (optional)
(required) (optional) (optional)
Tap
(in hard bone) --- --- --- --- 7.3
[Item Number] [311.682]

Drive Type T8 StarDrive 2.5 mm Hex T15 StarDrive 4.0 mm Hex T25 StarDrive T25 StarDrive 4.0 mm Hex 4.0 mm Hex 4.0 mm Hex

SYNTHES (USA) SYNTHES (CANADA) LTD.

1690 Russell Road 2566 Meadowpine Boulevard
Original Instruments and Implants of the Association Paoli, PA 19301-1262 Mississauga, Ontario L5N 6P9
for the Study of Internal Fixation— AO ASIF Telephone: (610 ) 647-9700 Telephone: (905) 567-0440
Fax: (610 ) 251-9056 Fax: (905) 567-3185
To order: (800 ) 523 -0322 To order: (800) 668-1119
© 2002 SYNTHES (USA) SYNTHES and ASIF are registered trademarks of SYNTHES (USA) and SYNTHES AG Chur Printed in U.S.A. GP0644-C 4/04 J1364-C