Value Collection 581044PR Hex Socket Cap Screw 3/8-24 Unf

Product Description

The VALUE COLLECTION 581044PR is a partially threaded hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and industrial equipment. It features a 3/8-24 UNF thread size and measures 3.75 inches under the head, providing a secure grip in fine-thread applications. The 5/16-inch hex drive accepts a standard hex key or Allen wrench. Constructed from alloy steel with a black oxide finish, this cap screw offers solid mechanical strength and moderate corrosion resistance for indoor or protected-environment use. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for applications requiring certified fastener performance.

This cap screw is commonly used in machine tool mounting, fixture building, hydraulic component assembly, and general industrial maintenance. The fine 3/8-24 UNF thread provides higher thread engagement per inch compared to coarse thread, making it well suited for applications where vibration resistance or precise torque control is important. Partial threading allows the unthreaded shank to bear shear loads, a common requirement in precision mechanical assemblies. Sold in minimum order quantities of 10 per package.

Key Features

• 3/8-24 UNF fine thread for higher vibration resistance and precise torque control
• 3.75-inch length under head accommodates deeper engagement or stacked components
• Partially threaded shank handles shear loads in precision assemblies
• 5/16-inch hex drive for standard Allen key or T-handle hex driver
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw compatible with any 3/8-24 UNF tapped hole requiring a partially threaded alloy steel fastener in that length class.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 5/16-inch hex key or powered hex driver. De-energize and lock out any equipment before fastener installation or removal per applicable OSHA lockout/tagout procedures. Do not exceed the rated torque specification for this diameter and grade as listed in ASME B18.3 reference tables. Inspect threads for damage before installation to ensure proper seating and clamp load.