Grade 8, 5/16"-18 Hex Head Cap Screw, Black Oxide Steel, 4-1/4 in L, 25 PK MPN:U04100.031.0425
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Free Shipping
In Stock
SKU
510-G5529343
Grade 8, 5/16"-18 Hex Head Cap Screw, Black Oxide Steel, 4-1/4 in L, 25 PK
Elevate your projects with the Grade 8, 5/16in-18 Hex Head Cap Screw from GoVets Select. Perfect for heavy-duty applications, these black oxide steel fasteners offer exceptional strength and durability. With a 4-1/4 inch length and 25-pack quantity, they're ideal for construction, manufacturing, and automotive industries. The coarse UNC thread and partially threaded design provide a secure hold in a variety of materials. Use them for assembling machinery, repairing equipment, or building custom furniture. The Grade 8 rating ensures high torque resistance and a long lifespan, making these screws a reliable choice for demanding projects.
Top product features:
- Grade 8 steel provides high strength and resistance to wear and corrosion.
- The hex head design allows for easy tightening and loosening with a wrench.
- The partially threaded design provides a secure anchor point for the screw.
Top product applications:
- Automotive repair
- Machine building
- Heavy equipment assembly
Hex Head Cap Screw, System of Measurement Inch, Basic Material Steel, Material Grade Grade 8, Fastener Finish Plain, Dia./Thread Size 5/16 In.-18, Fastener Length 4 1/4 in, Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), Fastener Thread Style Partially Threaded, Fastener Industry Standards ASME B18.2.1, Head Type Hex, Min. Thread Length 7/8 in, Head Height 13/64 in, Head Width 1/2 in, Package Quantity 25
Additional Information
- Country of Origin: ZZ
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: PK
- Package Length: 6.00
- Package Width: 4.30
- Package Height: 1.60
- Package Weight: 2.46
Product info last updated on February 13, 2026 10:02am UTC
Category: Screws and Bolts