About Rounded Head Screws
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About Socket Head Screws
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Alloy Steel Socket Head Screws
With a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head.
Black-oxide steel screws are mildly corrosion resistant in dry environments. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance. They are not compatible with coarse threads.
Screws that meet ASTM A574, ASTM A574M, and ISO 898-1 comply with specifications and testing requirements for material quality.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing  | Dia. | Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
5/16"-32 | ||||||||||
Black-Oxide Alloy Steel | ||||||||||
| 3/4" | Fully Threaded | Extra Fine | 15/32" | 5/16" | 1/4" | 170,000 | ASTM A574 | 5 | 000000000 | 000000 |
| 1" | Fully Threaded | Extra Fine | 15/32" | 5/16" | 1/4" | 170,000 | ASTM A574 | 5 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | Extra Fine | 15/32" | 5/16" | 1/4" | 170,000 | ASTM A574 | 5 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | Extra Fine | 15/32" | 5/16" | 1/4" | 170,000 | ASTM A574 | 5 | 000000000 | 00000 |
18-8 Stainless Steel Button Head Hex Drive Screws
18-8 stainless steel button head screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
