5/16"-18 x 8 1/2" Socket Head Cap Screws / Alloy Steel / Thermal Black Oxide / ASTM F835; SAE J429; ASME B18.3
$266.40
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Product Description
5/16"-18 x 8 1/2" Socket Head Cap Screws / Alloy Steel / Thermal Black Oxide / ASTM F835; SAE J429; ASME B18.3
Specifications
| Material | Alloy Steel |
|---|---|
| Finish | Thermal Black Oxide |
| Size | 5/16"-18 |
| Length | 8 1/2" |
| Head Style | Socket Head |
| Drive | Hex Socket (Allen) |
| Thread Pitch | 18 TPI |
| Thread Class | Coarse |
| Hardness | C37 - C45 |
| Tensile Strength | 180000 |
| Standard | ASME B18.3 |
| RoHS Compliance | RoHS Compliant |
| Measurement System | Inch |
| Head Height | 0.312" |
| Hex Key / Wrench Size | 1/4" |
RoHS Compliant
Frequently Asked Questions
What hex key size do I need for this socket head cap screw?
For this 5/16"-18 Socket Head Cap Screw, use a 1/4" hex key (Allen wrench).
Does Black Oxide finish provide corrosion protection?
Black Oxide provides mild corrosion resistance through a controlled oxidation process. It is dimensionally stable (no plating buildup), will not chip or flake, and is suitable for indoor use. For outdoor or wet environments, additional oil coating or a different finish (zinc, stainless) is recommended.
Socket Head Cap Screw, Partial Thread / Alloy Steel / Black Oxide
Family: 581
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Technical Specifications
Thread Size
5/16"-18
Thread Type
Coarse (UNC)
Material
Alloy Steel
Head Style
Socket Head
Thread Pitch
18 TPI
Tensile Strength
180000
Hardness
C37 - C45
SKU
581438-50