Value Collection 581475PS Hex Socket Cap Screw 3/8-16 Unc

Product Description

The VALUE COLLECTION 581475PS is a partially threaded hex socket cap screw designed for high-strength fastening in mechanical assemblies, industrial equipment, and structural applications. The screw features a 3/8-16 UNC thread size and a 4-3/4 inch length under the head, driven by a 5/16 inch hex key. Constructed from alloy steel and finished with a black oxide coating, this fastener delivers solid tensile strength and moderate corrosion resistance in both indoor and light industrial environments. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it a recognized choice where dimensional and mechanical property compliance matters. Typically installed by machinists, millwrights, and maintenance technicians.

This socket cap screw is suited for machinery frames, fixtures, jigs, and tooling where a low-profile, high-clamping-force fastener is required. The partial thread design provides a smooth shank section that can act as a locating feature or distribute load along the grip length, making it appropriate for applications where the fastener passes through a clearance hole before engaging a tapped bore. It is a standard off-the-shelf fastener stocked in shops and maintenance facilities across manufacturing and construction trades.

Key Features

• 3/8-16 UNC thread form for broad compatibility with standard tapped holes
• 4-3/4 inch length under head accommodates deep grip applications
• Partially threaded shank provides a smooth bearing surface through clearance holes
• Alloy steel construction meets ASTM A574 mechanical property requirements
• Black oxide finish offers mild corrosion resistance and reduces light reflection
• Conforms to ASME/ANSI B18.3 dimensional standard

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw for use in any 3/8-16 UNC tapped hole application requiring a 5/16 inch hex drive.

Installation Notes

Installation requires a 5/16 inch hex key or socket driver; confirm the tapped hole is clean and free of debris before threading. Torque to the appropriate value for the joint material and application per standard fastener engineering references. Power down or de-energize any equipment before accessing fastener locations on live machinery. Follow applicable facility safety and maintenance procedures when servicing industrial assemblies.