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About Socket Head Screws
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Alloy Steel Socket Head Screws
Fully Threaded
Partially Threaded
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.
Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch.
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 | Min. Thread Lg. | Thread Spacing  | Dia. | Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
1 3/4"-5 | |||||||||||
Black-Oxide Alloy Steel | |||||||||||
| 4" | Fully Threaded | __ | Coarse | 2 5/8" | 1 3/4" | 1 1/4" | 170,000 | ASTM A574 | 1 | 000000000 | 000000 |
| 6" | Partially Threaded | 4 3/8" | Coarse | 2 5/8" | 1 3/4" | 1 1/4" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 8" | Partially Threaded | 4 3/8" | Coarse | 2 5/8" | 1 3/4" | 1 1/4" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 10" | Partially Threaded | 4 3/8" | Coarse | 2 5/8" | 1 3/4" | 1 1/4" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |