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About Hex Head Screws and Bolts
Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.
Steel Hex Head Screws with External-Tooth Lock Washer
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Fully Threaded |
Head | Washer | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | OD | Thk. | Threading | Thread Spacing | Fastener Strength Grade/Class | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
Medium-Strength Zinc-Plated Steel | |||||||||||||
1/4"-20 | |||||||||||||
| 1/2" | 7/16" | 3/16" | 0.475" | 0.025" | Fully Threaded | Coarse | SAE Grade 5.1 | 120,000 | 25 | 94881A110 | 000000 | ||
| 3/4" | 7/16" | 3/16" | 0.475" | 0.025" | Fully Threaded | Coarse | SAE Grade 5.1 | 120,000 | 25 | 94881A120 | 00000 | ||
| 1" | 7/16" | 3/16" | 0.475" | 0.025" | Fully Threaded | Coarse | SAE Grade 5.1 | 120,000 | 25 | 94881A130 | 00000 | ||
3/8"-16 | |||||||||||||
| 1" | 9/16" | 9/32" | 0.660" | 0.035" | Fully Threaded | Coarse | SAE Grade 5.1 | 120,000 | 10 | 94881A140 | 00000 | ||
| 1 1/4" | 9/16" | 9/32" | 0.660" | 0.035" | Fully Threaded | Coarse | SAE Grade 5.1 | 120,000 | 10 | 94881A150 | 00000 | ||
| 1 1/2" | 9/16" | 9/32" | 0.660" | 0.035" | Fully Threaded | Coarse | SAE Grade 5.1 | 120,000 | 10 | 94881A160 | 00000 | ||
Low-Strength Zinc-Plated Steel | |||||||||||||
6-32 | |||||||||||||
| 1/4" | 1/4" | 3/32" | 0.285" | 0.022" | Fully Threaded | Coarse | — | 60,000 | 25 | 90401A144 | 0000 | ||
| 3/8" | 1/4" | 3/32" | 0.285" | 0.022" | Fully Threaded | Coarse | — | 60,000 | 100 | 90401A146 | 00000 | ||
| 1/2" | 1/4" | 3/32" | 0.285" | 0.022" | Fully Threaded | Coarse | — | 60,000 | 25 | 90401A148 | 0000 | ||
8-32 | |||||||||||||
| 1/4" | 5/16" | 7/64" | 0.317" | 0.023" | Fully Threaded | Coarse | — | 60,000 | 50 | 90401A190 | 0000 | ||
| 3/8" | 5/16" | 7/64" | 0.317" | 0.023" | Fully Threaded | Coarse | — | 60,000 | 50 | 90401A192 | 0000 | ||
| 1/2" | 5/16" | 7/64" | 0.317" | 0.023" | Fully Threaded | Coarse | — | 60,000 | 10 | 90401A194 | 0000 | ||
10-24 | |||||||||||||
| 3/8" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Coarse | — | 60,000 | 25 | 90401A240 | 0000 | ||
| 1/2" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Coarse | — | 60,000 | 25 | 90401A242 | 0000 | ||
10-32 | |||||||||||||
| 3/8" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Fine | — | 60,000 | 25 | 90401A827 | 0000 | ||
| 1/2" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Fine | — | 60,000 | 100 | 90401A829 | 00000 | ||
1/4"-20 | |||||||||||||
| 3/8" | 7/16" | 3/16" | 0.475" | 0.028" | Fully Threaded | Coarse | — | 60,000 | 25 | 90401A535 | 0000 | ||
| 1/2" | 7/16" | 3/16" | 0.475" | 0.028" | Fully Threaded | Coarse | — | 60,000 | 50 | 90401A537 | 00000 | ||
| 3/4" | 7/16" | 3/16" | 0.475" | 0.028" | Fully Threaded | Coarse | — | 60,000 | 50 | 90401A540 | 00000 | ||
| 1" | 7/16" | 3/16" | 0.475" | 0.028" | Fully Threaded | Coarse | — | 60,000 | 25 | 90401A542 | 00000 | ||
Stainless Steel Socket Head Screws with Split Lock Washer
Head | Washer | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | OD | Thk. | Threading | Thread Spacing | Tensile Strength, psi | Each | |||
18-8 Stainless Steel | |||||||||||
6-32 | |||||||||||
| 1/4" | 0.226" | 0.138" | 0.204" | 0.04" | Fully Threaded | Coarse | 70,000 | 94912A100 | 00000 | ||
| 3/8" | 0.226" | 0.138" | 0.204" | 0.04" | Fully Threaded | Coarse | 70,000 | 94912A105 | 0000 | ||
| 1/2" | 0.226" | 0.138" | 0.204" | 0.04" | Fully Threaded | Coarse | 70,000 | 94912A110 | 0000 | ||
| 3/4" | 0.226" | 0.138" | 0.204" | 0.04" | Fully Threaded | Coarse | 70,000 | 94912A115 | 0000 | ||
8-32 | |||||||||||
| 3/8" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 70,000 | 94912A220 | 0000 | ||
| 1/2" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 70,000 | 94912A225 | 0000 | ||
| 5/8" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 70,000 | 94912A230 | 0000 | ||
| 3/4" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 70,000 | 94912A235 | 0000 | ||
| 1" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 70,000 | 94912A240 | 0000 | ||
10-32 | |||||||||||
| 1/2" | 5/16" | 0.19" | 19/64" | 3/64" | Fully Threaded | Fine | 70,000 | 94912A330 | 0000 | ||
| 5/8" | 5/16" | 0.19" | 19/64" | 3/64" | Fully Threaded | Fine | 70,000 | 94912A335 | 0000 | ||
| 3/4" | 5/16" | 0.19" | 19/64" | 3/64" | Fully Threaded | Fine | 70,000 | 94912A340 | 0000 | ||
| 1" | 5/16" | 0.19" | 19/64" | 3/64" | Fully Threaded | Fine | 70,000 | 94912A345 | 0000 | ||
1/4"-20 | |||||||||||
| 1/2" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 70,000 | 94912A450 | 0000 | ||
| 5/8" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 70,000 | 94912A455 | 0000 | ||
| 3/4" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 70,000 | 94912A460 | 0000 | ||
| 1" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 70,000 | 94912A465 | 0000 | ||
| 1 1/4" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 70,000 | 94912A470 | 0000 | ||
Steel Slotted Hex Head Screws with External-Tooth Lock Washer
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Head | Washer | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | OD | Thk. | Threading | Thread Spacing | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
Low-Strength Zinc-Plated Steel | ||||||||||||
10-24 | ||||||||||||
| 3/8" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Coarse | 60,000 | 50 | 94461A110 | 000000 | ||
| 1/2" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Coarse | 60,000 | 50 | 94461A120 | 00000 | ||
10-32 | ||||||||||||
| 3/8" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Fine | 60,000 | 100 | 94461A130 | 00000 | ||
| 1/2" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Fine | 60,000 | 25 | 94461A140 | 00000 | ||
1/4"-20 | ||||||||||||
| 1/2" | 3/8" | 3/16" | 0.510" | 0.028" | Fully Threaded | Coarse | 60,000 | 50 | 94461A150 | 00000 | ||
| 3/4" | 3/8" | 3/16" | 0.510" | 0.028" | Fully Threaded | Coarse | 60,000 | 25 | 94461A160 | 00000 | ||
Stainless Steel Hex Head Screws with External-Tooth Lock Washer
Head | Washer | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | OD | Thk. | Threading | Thread Spacing | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | ||||||||||||
6-32 | ||||||||||||
| 1/4" | 1/4" | 3/32" | 0.285" | 0.022" | Fully Threaded | Coarse | 80,000 | 25 | 90401A314 | 000000 | ||
| 3/8" | 1/4" | 3/32" | 0.285" | 0.022" | Fully Threaded | Coarse | 80,000 | 25 | 90401A315 | 00000 | ||
| 1/2" | 1/4" | 3/32" | 0.285" | 0.022" | Fully Threaded | Coarse | 80,000 | 25 | 90401A316 | 00000 | ||
8-32 | ||||||||||||
| 1/4" | 1/4" | 7/64" | 0.320" | 0.023" | Fully Threaded | Coarse | 80,000 | 25 | 90401A317 | 00000 | ||
| 3/8" | 1/4" | 7/64" | 0.320" | 0.023" | Fully Threaded | Coarse | 80,000 | 25 | 90401A318 | 00000 | ||
| 1/2" | 1/4" | 7/64" | 0.320" | 0.023" | Fully Threaded | Coarse | 80,000 | 25 | 90401A319 | 00000 | ||
10-24 | ||||||||||||
| 3/8" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Coarse | 80,000 | 25 | 90401A321 | 00000 | ||
| 1/2" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Coarse | 80,000 | 25 | 90401A322 | 00000 | ||
10-32 | ||||||||||||
| 3/8" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Fine | 80,000 | 25 | 90401A323 | 00000 | ||
| 1/2" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Fine | 80,000 | 25 | 90401A324 | 00000 | ||
| 3/4" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Fine | 80,000 | 25 | 90401A325 | 00000 | ||
| 1" | 5/16" | 1/8" | 0.381" | 0.024" | Fully Threaded | Fine | 80,000 | 25 | 90401A326 | 00000 | ||
1/4"-20 | ||||||||||||
| 1/2" | 7/16" | 3/16" | 0.475" | 0.025" | Fully Threaded | Coarse | 80,000 | 25 | 90401A311 | 00000 | ||
| 3/4" | 7/16" | 3/16" | 0.475" | 0.025" | Fully Threaded | Coarse | 80,000 | 25 | 90401A312 | 00000 | ||
| 1" | 7/16" | 3/16" | 0.475" | 0.025" | Fully Threaded | Coarse | 80,000 | 25 | 90401A313 | 00000 | ||
Steel Flanged Slotted Hex Head Screws with Internal-Tooth Lock Washer
Head | Washer | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | OD | Thk. | Threading | Thread Spacing | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
Low-Strength Zinc-Plated Steel | ||||||||||||
8-32 | ||||||||||||
| 3/8" | 1/4" | 9/64" | 0.338" | 0.023" | Fully Threaded | Coarse | 60,000 | 50 | 94461A170 | 000000 | ||
10-32 | ||||||||||||
| 3/8" | 5/16" | 5/32" | 0.383" | 0.024" | Fully Threaded | Fine | 60,000 | 50 | 94461A180 | 00000 | ||
| 1/2" | 5/16" | 5/32" | 0.383" | 0.024" | Fully Threaded | Fine | 60,000 | 50 | 94461A190 | 00000 | ||
| 3/4" | 5/16" | 5/32" | 0.383" | 0.024" | Fully Threaded | Fine | 60,000 | 50 | 94461A210 | 00000 | ||
Steel Socket Head Screws with Split Lock Washer
Head | Washer | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | OD | Thk. | Threading | Thread Spacing | Tensile Strength, psi | Each | |||
Black-Oxide Alloy Steel | |||||||||||
4-40 | |||||||||||
| 1/4" | 0.183" | 0.112" | 11/64" | 0.03" | Fully Threaded | Coarse | 180,000 | 90342A111 | 00000 | ||
| 3/8" | 0.183" | 0.112" | 11/64" | 0.03" | Fully Threaded | Coarse | 180,000 | 90342A112 | 0000 | ||
| 1/2" | 0.183" | 0.112" | 11/64" | 0.03" | Fully Threaded | Coarse | 180,000 | 90342A113 | 0000 | ||
6-32 | |||||||||||
| 1/4" | 0.226" | 0.138" | 0.204" | 0.04" | Fully Threaded | Coarse | 180,000 | 90342A114 | 0000 | ||
| 3/8" | 0.226" | 0.138" | 0.204" | 0.04" | Fully Threaded | Coarse | 180,000 | 90342A115 | 0000 | ||
| 1/2" | 0.226" | 0.138" | 0.204" | 0.04" | Fully Threaded | Coarse | 180,000 | 90342A116 | 0000 | ||
8-32 | |||||||||||
| 3/8" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 180,000 | 90342A117 | 0000 | ||
| 1/2" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 180,000 | 90342A118 | 0000 | ||
| 5/8" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 180,000 | 90342A119 | 0000 | ||
| 3/4" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 180,000 | 90342A120 | 0000 | ||
| 1" | 0.27" | 0.164" | 0.243" | 3/64" | Fully Threaded | Coarse | 180,000 | 90342A121 | 0000 | ||
10-32 | |||||||||||
| 3/8" | 5/16" | 0.19" | 19/64" | 3/64" | Fully Threaded | Fine | 180,000 | 90342A122 | 0000 | ||
| 1/2" | 5/16" | 0.19" | 19/64" | 3/64" | Fully Threaded | Fine | 180,000 | 90342A123 | 0000 | ||
| 3/4" | 5/16" | 0.19" | 19/64" | 3/64" | Fully Threaded | Fine | 180,000 | 90342A124 | 0000 | ||
| 1" | 5/16" | 0.19" | 19/64" | 3/64" | Fully Threaded | Fine | 180,000 | 90342A125 | 0000 | ||
1/4"-20 | |||||||||||
| 3/8" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 180,000 | 90342A126 | 0000 | ||
| 1/2" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 180,000 | 90342A127 | 0000 | ||
| 3/4" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 180,000 | 90342A128 | 0000 | ||
| 1" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 180,000 | 90342A129 | 0000 | ||
| 1 1/4" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 180,000 | 90342A130 | 0000 | ||
| 1 1/2" | 3/8" | 1/4" | 0.354" | 1/16" | Fully Threaded | Coarse | 180,000 | 90342A131 | 0000 | ||































