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DFARS Specialty Metals
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Steel 12-Point Screws
 |  |
Fully Threaded | Partially Threaded |
Good for high-strength fastening, these screws are made from steel comparable in strength to Grade 9 steel. Use them for heavy duty stamping applications as well as earth-moving machinery, such as bulldozers and excavators. The head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. To install, use a 12-point wrench that matches the head width of your screw.
Black Oxide—Black-oxide coated screws are mildly corrosion resistant in dry environments.
Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Threading | Min. Thread Lg. | Thread Spacing | Wd. | Ht. | Flange Dia. | Tensile Strength, psi | Material | Pkg. Qty. | Pkg. | |||
1/4"-28 | |||||||||||||
| 5/8" | Fully Threaded | — | Fine | 1/4" | 1/4" | 3/8" | 170,000 | Alloy Steel | 50 | 91271A101 | 00000 | ||
| 3/4" | Fully Threaded | — | Fine | 1/4" | 1/4" | 3/8" | 170,000 | Alloy Steel | 50 | 91271A570 | 00000 | ||
| 1" | Fully Threaded | — | Fine | 1/4" | 1/4" | 3/8" | 170,000 | Alloy Steel | 50 | 91271A572 | 00000 | ||
| 1 1/4" | Fully Threaded | — | Fine | 1/4" | 1/4" | 3/8" | 170,000 | Alloy Steel | 50 | 91271A573 | 00000 | ||
| 1 1/2" | Partially Threaded | 1" | Fine | 1/4" | 1/4" | 3/8" | 170,000 | Alloy Steel | 50 | 91271A574 | 00000 | ||
| 1 3/4" | Partially Threaded | 1" | Fine | 1/4" | 1/4" | 3/8" | 170,000 | Alloy Steel | 25 | 91271A575 | 00000 | ||
| 2" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 1/2" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A304 | 0000 | ||
| 2 1/2" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 1/2" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A305 | 0000 | ||
| 3" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 1/2" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A306 | 0000 | ||
| 3 1/2" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 1/2" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A307 | 0000 | ||
| 4" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 1/2" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A308 | 0000 | ||
| 4 1/2" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 1/2" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A309 | 0000 | ||
5/16"-24 | |||||||||||||
| 3/4" | Fully Threaded | — | Fine | 5/16" | 5/16" | 15/32" | 170,000 | Alloy Steel | 25 | 91271A605 | 0000 | ||
| 7/8" | Fully Threaded | — | Fine | 5/16" | 5/16" | 15/32" | 170,000 | Alloy Steel | 25 | 91271A606 | 00000 | ||
| 1" | Fully Threaded | — | Fine | 5/16" | 5/16" | 15/32" | 170,000 | Alloy Steel | 25 | 91271A607 | 00000 | ||
| 1 1/4" | Fully Threaded | — | Fine | 5/16" | 5/16" | 15/32" | 170,000 | Alloy Steel | 25 | 91271A609 | 00000 | ||
| 1 1/2" | Fully Threaded | — | Fine | 5/16" | 5/16" | 15/32" | 170,000 | Alloy Steel | 25 | 91271A611 | 00000 | ||
| 2" | Partially Threaded | 1 1/8" | Fine | 5/16" | 5/16" | 15/32" | 170,000 | Alloy Steel | 25 | 91271A613 | 00000 | ||
| 2 1/2" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A316 | 0000 | ||
| 3" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A317 | 0000 | ||
| 3 1/2" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A318 | 0000 | ||
| 4" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A319 | 0000 | ||
| 4 1/2" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A321 | 0000 | ||
| 5" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A322 | 0000 | ||
3/8"-24 | |||||||||||||
| 3/4" | Fully Threaded | — | Fine | 3/8" | 3/8" | 9/16" | 170,000 | Alloy Steel | 25 | 91271A103 | 00000 | ||
| 1" | Fully Threaded | — | Fine | 3/8" | 3/8" | 9/16" | 170,000 | Alloy Steel | 25 | 91271A641 | 00000 | ||
| 1 1/4" | Fully Threaded | — | Fine | 3/8" | 3/8" | 9/16" | 170,000 | Alloy Steel | 25 | 91271A644 | 00000 | ||
| 1 1/2" | Fully Threaded | — | Fine | 3/8" | 3/8" | 9/16" | 170,000 | Alloy Steel | 25 | 91271A646 | 00000 | ||
| 1 3/4" | Partially Threaded | 1 1/4" | Fine | 3/8" | 3/8" | 9/16" | 170,000 | Alloy Steel | 10 | 91271A647 | 0000 | ||
| 2" | Partially Threaded | 1 1/4" | Fine | 3/8" | 3/8" | 9/16" | 170,000 | Alloy Steel | 10 | 91271A648 | 00000 | ||
| 2 1/4" | Partially Threaded | 1 1/4" | Fine | 3/8" | 3/8" | 9/16" | 170,000 | Alloy Steel | 10 | 91271A104 | 00000 | ||
| 2 1/2" | Partially Threaded | 1 1/4" | Fine | 3/8" | 3/8" | 9/16" | 170,000 | Alloy Steel | 10 | 91271A650 | 00000 | ||
| 3" | Partially Threaded | 1 1/8" | Fine | 7/16" | 3/8" | 11/16" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A324 | 0000 | ||
| 3 1/2" | Partially Threaded | 1 1/8" | Fine | 7/16" | 3/8" | 11/16" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A325 | 0000 | ||
| 4" | Partially Threaded | 1 1/8" | Fine | 7/16" | 3/8" | 11/16" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A326 | 0000 | ||
7/16"-20 | |||||||||||||
| 3/4" | Fully Threaded | — | Fine | 7/16" | 7/16" | 21/32" | 170,000 | Alloy Steel | 5 | 91271A105 | 0000 | ||
| 1" | Fully Threaded | — | Fine | 1/2" | 3/8" | 3/4" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A333 | 0000 | ||
| 1 1/4" | Fully Threaded | — | Fine | 1/2" | 3/8" | 3/4" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A334 | 0000 | ||
| 1 1/2" | Partially Threaded | 1 1/4" | Fine | 1/2" | 3/8" | 3/4" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A335 | 0000 | ||
| 1 3/4" | Partially Threaded | 1 1/4" | Fine | 1/2" | 3/8" | 3/4" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A336 | 0000 | ||
| 2" | Partially Threaded | 1 1/4" | Fine | 1/2" | 3/8" | 3/4" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A337 | 0000 | ||
| 2 1/4" | Partially Threaded | 1 1/4" | Fine | 1/2" | 3/8" | 3/4" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A338 | 0000 | ||
| 2 1/2" | Partially Threaded | 1 1/4" | Fine | 1/2" | 3/8" | 3/4" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A339 | 0000 | ||
| 3" | Partially Threaded | 1 1/4" | Fine | 1/2" | 3/8" | 3/4" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A341 | 0000 | ||
1/2"-20 | |||||||||||||
| 1" | Fully Threaded | — | Fine | 1/2" | 1/2" | 3/4" | 170,000 | Alloy Steel | 10 | 91271A758 | 00000 | ||
| 1 1/4" | Fully Threaded | — | Fine | 1/2" | 1/2" | 3/4" | 170,000 | Alloy Steel | 10 | 91271A759 | 00000 | ||
| 1 1/2" | Fully Threaded | — | Fine | 1/2" | 1/2" | 3/4" | 170,000 | Alloy Steel | 10 | 91271A760 | 00000 | ||
| 1 3/4" | Fully Threaded | — | Fine | 1/2" | 1/2" | 3/4" | 170,000 | Alloy Steel | 5 | 91271A761 | 0000 | ||
| 2" | Fully Threaded | — | Fine | 1/2" | 1/2" | 3/4" | 170,000 | Alloy Steel | 5 | 91271A765 | 0000 | ||
| 2 1/4" | Partially Threaded | 1 1/2" | Fine | 1/2" | 1/2" | 3/4" | 170,000 | Alloy Steel | 5 | 91271A767 | 00000 | ||
| 2 1/2" | Partially Threaded | 1 1/2" | Fine | 1/2" | 1/2" | 3/4" | 170,000 | Alloy Steel | 5 | 91271A770 | 0000 | ||
| 3" | Partially Threaded | 1 1/4" | Fine | 9/16" | 7/16" | 7/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A343 | 0000 | ||
| 3 1/2" | Partially Threaded | 1 1/4" | Fine | 9/16" | 7/16" | 7/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A344 | 0000 | ||
| 4" | Partially Threaded | 1 1/4" | Fine | 9/16" | 7/16" | 7/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A345 | 0000 | ||
| 4 1/2" | Partially Threaded | 1 1/4" | Fine | 9/16" | 7/16" | 7/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A346 | 0000 | ||
| 5" | Partially Threaded | 1 1/4" | Fine | 9/16" | 7/16" | 7/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A347 | 00000 | ||
| 6" | Partially Threaded | 1 1/4" | Fine | 9/16" | 7/16" | 7/8" | 170,000 | Black-Oxide Alloy Steel | 1 | 94173A348 | 00000 | ||
5/8"-18 | |||||||||||||
| 1 1/2" | Fully Threaded | — | Fine | 5/8" | 5/8" | 15/16" | 170,000 | Alloy Steel | 5 | 91271A818 | 0000 | ||
| 2" | Fully Threaded | — | Fine | 5/8" | 5/8" | 15/16" | 170,000 | Alloy Steel | 5 | 91271A820 | 00000 | ||
M10 × 1.25 mm | |||||||||||||
| 20 mm | Fully Threaded | — | Fine | 12 mm | 9 mm | 18.5 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A305 | 0000 | ||
| 25 mm | Fully Threaded | — | Fine | 12 mm | 9 mm | 18.5 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A306 | 0000 | ||
| 30 mm | Fully Threaded | — | Fine | 12 mm | 9 mm | 18.5 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A307 | 0000 | ||
| 35 mm | Fully Threaded | — | Fine | 12 mm | 9 mm | 18.5 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A308 | 0000 | ||
| 40 mm | Partially Threaded | 26 mm | Fine | 12 mm | 9 mm | 18.5 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A309 | 0000 | ||
M12 × 1.5 mm | |||||||||||||
| 25 mm | Fully Threaded | — | Fine | 14 mm | 11.7 mm | 21.6 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A311 | 0000 | ||
| 30 mm | Fully Threaded | — | Fine | 14 mm | 11.7 mm | 21.6 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A312 | 0000 | ||
| 35 mm | Partially Threaded | 30 mm | Fine | 14 mm | 11.7 mm | 21.6 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A313 | 0000 | ||
| 40 mm | Partially Threaded | 30 mm | Fine | 14 mm | 11.7 mm | 21.6 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A314 | 0000 | ||
| 45 mm | Partially Threaded | 30 mm | Fine | 14 mm | 11.7 mm | 21.6 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A315 | 0000 | ||
| 50 mm | Partially Threaded | 30 mm | Fine | 14 mm | 11.7 mm | 21.6 mm | 180,000 | Black-Oxide Alloy Steel | 1 | 93700A316 | 0000 | ||
Stainless Steel 12-Point Screws
 |  |
Fully Threaded | Partially Threaded |
These stainless steel screws won’t rust or corrode when exposed to moisture and chemicals. The head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. To install, use a 12-point wrench that matches the head width of your screw.
450 Stainless Steel—450 stainless steel screws are more corrosion resistant than 18-8 stainless steel screws and have good resistance to chemicals and salt water. They are magnetic.
Extreme Strength—Our strongest 12-point screws. They hold up in the most demanding high-stress applications, such as in earthmoving equipment and heavy duty stamping.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Threading | Min. Thread Lg. | Thread Spacing | Wd. | Ht. | Flange Dia. | Tensile Strength, psi | Material | Each | |||
Extreme-Strength Stainless Steel | ||||||||||||
10-32 | ||||||||||||
| 1/2" | Fully Threaded | — | Fine | 1/4" | 1/4" | 23/64" | 170,000 | 450 Stainless Steel | 96242A111 | 00000 | ||
| 5/8" | Fully Threaded | — | Fine | 1/4" | 1/4" | 23/64" | 170,000 | 450 Stainless Steel | 96242A112 | 0000 | ||
| 3/4" | Fully Threaded | — | Fine | 1/4" | 1/4" | 23/64" | 170,000 | 450 Stainless Steel | 96242A113 | 0000 | ||
| 1" | Fully Threaded | — | Fine | 1/4" | 1/4" | 23/64" | 170,000 | 450 Stainless Steel | 96242A114 | 0000 | ||
1/4"-28 | ||||||||||||
| 1/2" | Fully Threaded | — | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A136 | 0000 | ||
| 3/4" | Fully Threaded | — | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A137 | 0000 | ||
| 1" | Fully Threaded | — | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A138 | 0000 | ||
| 1 1/4" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A573 | 0000 | ||
| 1 1/2" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A581 | 0000 | ||
| 1 3/4" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A588 | 0000 | ||
| 2" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A596 | 0000 | ||
| 2 1/4" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A603 | 0000 | ||
| 2 1/2" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A611 | 0000 | ||
| 2 3/4" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A618 | 0000 | ||
| 3" | Partially Threaded | 1" | Fine | 5/16" | 1/4" | 33/64" | 170,000 | 450 Stainless Steel | 96242A626 | 0000 | ||
5/16"-24 | ||||||||||||
| 1/2" | Fully Threaded | — | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A139 | 0000 | ||
| 3/4" | Fully Threaded | — | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A141 | 0000 | ||
| 1" | Fully Threaded | — | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A142 | 0000 | ||
| 1 1/2" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A686 | 0000 | ||
| 1 3/4" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A693 | 0000 | ||
| 2" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A701 | 0000 | ||
| 2 1/4" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A708 | 0000 | ||
| 2 1/2" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A716 | 0000 | ||
| 2 3/4" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A723 | 0000 | ||
| 3" | Partially Threaded | 1" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A731 | 0000 | ||
3/8"-24 | ||||||||||||
| 1/2" | Fully Threaded | — | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A144 | 0000 | ||
| 3/4" | Fully Threaded | — | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A145 | 0000 | ||
| 1" | Fully Threaded | — | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A146 | 0000 | ||
| 1 1/2" | Partially Threaded | 1 1/8" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A791 | 0000 | ||
| 1 3/4" | Partially Threaded | 1 1/8" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A798 | 0000 | ||
| 2" | Partially Threaded | 1 1/8" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A806 | 0000 | ||
| 2 1/4" | Partially Threaded | 1 1/8" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A813 | 0000 | ||
| 2 1/2" | Partially Threaded | 1 1/8" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A821 | 0000 | ||
| 2 3/4" | Partially Threaded | 1 1/8" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A828 | 0000 | ||
| 3" | Partially Threaded | 1 1/8" | Fine | 3/8" | 5/16" | 5/8" | 170,000 | 450 Stainless Steel | 96242A836 | 0000 | ||
