Value Collection 581748BR Hex Socket Cap Screw 3/4-16 Unf

Product Description

The VALUE COLLECTION 581748BR is a hex socket cap screw designed for high-strength fastening applications where a flush, recessed drive is required. This screw features a 3/4-16 UNF thread size with a 7-inch length under head and a 5/8-inch hex drive. It is constructed from alloy steel with a black oxide coating that provides moderate corrosion resistance and reduces light glare on exposed hardware. Partial threading along the shank allows for precise clamping and alignment in bolted joint assemblies. Machinists, maintenance technicians, and industrial mechanics install this fastener across a wide range of structural and mechanical applications.

This socket cap screw is suited for use in heavy-duty mechanical assemblies, machine frames, fixtures, and equipment where a strong, countersunk-profile fastener is needed. The 3/4-16 UNF fine thread pitch provides greater thread engagement and clamping force compared to coarse thread equivalents, making it a common choice in precision machined components and applications subject to vibration or dynamic loading.

Key Features

• 3/4-16 UNF fine thread for high clamping force and vibration resistance
• 7-inch length under head accommodates deep grip or thick material stacks
• 5/8-inch hex socket drive for use with standard hex keys or socket drivers
• Partially threaded shank provides accurate shear-load transfer and joint alignment
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide finish reduces surface reflectivity and offers light corrosion resistance

Compatibility

Designed as a standard ASME/ANSI B18.3 and ASTM A574 compliant hex socket cap screw for use in any application requiring a 3/4-16 UNF partially threaded fastener with a 5/8-inch hex drive.

Installation Notes

Installation requires a 5/8-inch hex key or socket driver rated for the applied torque. Always ensure the mating threaded hole or nut is also rated for the 3/4-16 UNF specification before assembly. De-energize or lock out any equipment before fastening hardware in powered machinery, following applicable OSHA lockout/tagout procedures. Inspect threads for damage or contamination prior to installation and apply thread lubricant as appropriate for the joint design.