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About Hex Head Screws and Bolts
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Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.
Nickel Hex Head Screws
 |  |
Fully Threaded | Partially Threaded |
Withstand salt water and even some of the harshest acids. These screws have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive.
Length is measured from under the head.
Ultra-Corrosion-Resistant 400 Nickel—As strong as 316 stainless steel screws and outperform them in salt water and harsh acids. 400 nickel is also known as Monel.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Threading | Thread Spacing | Tensile Strength, psi | Mil. Spec. | Each | |||
Ultra-Corrosion-Resistant 400 Nickel | ||||||||||
1/4"-20 | ||||||||||
| 1/2" | 7/16" | 5/32" | Fully Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A538 | 00000 | ||
| 3/4" | 7/16" | 5/32" | Fully Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A540 | 0000 | ||
| 1" | 7/16" | 5/32" | Fully Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A542 | 0000 | ||
| 1 1/2" | 7/16" | 5/32" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A546 | 0000 | ||
| 2" | 7/16" | 5/32" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A548 | 0000 | ||
5/16"-18 | ||||||||||
| 3/4" | 1/2" | 13/64" | Fully Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A580 | 0000 | ||
| 1" | 1/2" | 13/64" | Fully Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A583 | 0000 | ||
| 1 1/2" | 1/2" | 13/64" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A587 | 0000 | ||
| 2" | 1/2" | 13/64" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A589 | 00000 | ||
3/8"-16 | ||||||||||
| 1" | 9/16" | 15/64" | Fully Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A624 | 0000 | ||
| 1 1/4" | 9/16" | 15/64" | Fully Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A626 | 0000 | ||
| 1 1/2" | 9/16" | 15/64" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A628 | 00000 | ||
| 2" | 9/16" | 15/64" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A630 | 00000 | ||
1/2"-13 | ||||||||||
| 1 1/2" | 3/4" | 5/16" | Fully Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A716 | 00000 | ||
| 2" | 3/4" | 5/16" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A720 | 00000 | ||
| 2 1/2" | 3/4" | 5/16" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A722 | 00000 | ||
| 3" | 3/4" | 5/16" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A724 | 00000 | ||
5/8"-11 | ||||||||||
| 2" | 15/16" | 25/64" | Fully Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A805 | 00000 | ||
| 2 1/2" | 15/16" | 25/64" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A809 | 00000 | ||
| 3" | 15/16" | 25/64" | Partially Threaded | Coarse | 80,000 | MIL-S-1222 | 90780A813 | 00000 | ||
