Value Collection 581657BR Hex Socket Cap Screw 5/8-11

Product Description

The VALUE COLLECTION 581657BR is a partially threaded hex socket cap screw designed for high-strength fastening in structural and mechanical assemblies. It features a 5/8-11 UNC thread and an 8.5-inch length under head, making it suitable for deep-reach applications where standard-length fasteners fall short. The screw is machined from alloy steel and finished with black oxide coating for moderate corrosion resistance and reduced light reflection. Drive engagement is through a 1/2-inch hex socket. Licensed tradespeople and industrial maintenance technicians use this fastener in equipment frames, fixtures, and structural connections requiring a reliable socket-drive cap screw.

This screw fits applications calling for a 5/8-11 UNC coarse-thread cap screw with a long body and partial thread engagement. The partial threading provides a smooth shank section useful in applications where the fastener passes through a clearance hole before engaging a tapped bore. Common install scenarios include heavy equipment assembly, fabrication shops, industrial maintenance, and structural mechanical work where socket-drive access is preferred over hex head configurations.

Key Features

• 5/8-11 UNC coarse thread for broad compatibility with standard tapped holes
• 8.5-inch length under head for deep-reach and through-clearance applications
• Partially threaded body provides a smooth shank for shear-load and clearance-hole installations
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide finish provides mild corrosion resistance and low-glare surface
• 1/2-inch internal hex drive for use with standard socket or Allen key tooling

Compatibility

Designed as an OEM-style replacement or standard fastener for any application requiring a 5/8-11 UNC partially threaded hex socket cap screw meeting ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation requires a 1/2-inch hex key or socket drive tool. Confirm the mating thread is clean and free of debris before engagement to avoid cross-threading. Torque to values appropriate for the fastener grade and joint material per applicable engineering or manufacturer specifications. Always follow relevant mechanical and structural codes for the application.