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Steel Socket Head Screws
 |
Fully Threaded |
 |
Partially Threaded |
Made of alloy steel, these screws are the standard for high-strength fastening. Use them in high-load applications such as dies, presses, and heavy equipment. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.
Length is measured from under the head.
Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Threading | Thread Spacing | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
Black-Oxide Alloy Steel | ||||||||||
2 1/4"-4 1/2 | ||||||||||
| 4" | 3 3/8" | 2 1/4" | Fully Threaded | Coarse | 170,000 | 1 | 90044A224 | 0000000 | ||
| 6" | 3 3/8" | 2 1/4" | Partially Threaded | Coarse | 170,000 | 1 | 90044A225 | 000000 | ||
| 8" | 3 3/8" | 2 1/4" | Partially Threaded | Coarse | 170,000 | 1 | 90044A226 | 000000 | ||
| 10" | 3 3/8" | 2 1/4" | Partially Threaded | Coarse | 170,000 | 1 | 90044A227 | 000000 | ||
2 1/4"-8 | ||||||||||
| 6" | 3 3/8" | 2 1/4" | Partially Threaded | Coarse | 170,000 | 1 | 90044A228 | 000000 | ||
| 8" | 3 3/8" | 2 1/4" | Partially Threaded | Coarse | 170,000 | 1 | 90044A229 | 000000 | ||
| 10" | 3 3/8" | 2 1/4" | Partially Threaded | Coarse | 170,000 | 1 | 90044A230 | 000000 | ||
2 1/2"-4 | ||||||||||
| 4" | 3 3/4" | 2 1/2" | Fully Threaded | Coarse | 170,000 | 1 | 90044A231 | 000000 | ||
| 6" | 3 3/4" | 2 1/2" | Fully Threaded | Coarse | 170,000 | 1 | 90044A232 | 000000 | ||
| 8" | 3 3/4" | 2 1/2" | Partially Threaded | Coarse | 170,000 | 1 | 90044A233 | 000000 | ||
| 10" | 3 3/4" | 2 1/2" | Partially Threaded | Coarse | 170,000 | 1 | 90044A234 | 000000 | ||
2 1/2"-8 | ||||||||||
| 4" | 3 3/4" | 2 1/2" | Fully Threaded | Fine | 170,000 | 1 | 90044A235 | 000000 | ||
| 6" | 3 3/4" | 2 1/2" | Fully Threaded | Fine | 170,000 | 1 | 90044A236 | 000000 | ||
| 8" | 3 3/4" | 2 1/2" | Partially Threaded | Fine | 170,000 | 1 | 90044A237 | 000000 | ||
| 10" | 3 3/4" | 2 1/2" | Partially Threaded | Fine | 170,000 | 1 | 90044A238 | 000000 | ||
L-Keys
