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Socket Head Cap Screw Black Steel 5/16-18 * 4-1/4" Grade 8 [Cup Point] [Allen Drive]

Socket Head Cap Screw Black Steel 5/16-18 * 4-1/4" Grade 8 [Cup Point] [Allen Drive]

13.63 $ CAD
13.63 $ CAD
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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. The screws have a thread of 5/16-18 and a length of 4-1/4.

 

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.

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Specifications
Product Number VPC-02042
Head Type Socket
Socket Head Profile Standard
Drive Style Hex
System of Measurement Inch
Thread Direction Right Hand
Thread Size 5/16"-18
Screw Size Decimal Equivalent 0.3125"
Thread Type UNC
Thread Fit Class 3A
Length 4-1/4"
Threading Partially Threaded
Min. Thread Length 1-1/8"
Thread Spacing Coarse

Head
Diameter 15/32"
Height 5/16"
Drive Size 1/4"
Material Black-Oxide Alloy Steel
Fastener Strength Grade/Class Grade 8
Tensile Strength 170,000 psi
Hardness Rockwell C37
Specifications Met ASTM A574
RoHS 3 (2015/863/EU) Compliant