Value Collection 592507BR Hex Socket Cap Screw 1-8 Unc

Product Description

The VALUE COLLECTION 592507BR is a hex socket cap screw designed for high-strength fastening applications where a low-profile, recessed-drive head is required. It features a 1-8 UNC thread size, a 5-inch length under head, and a 3/4-inch hex drive socket. Constructed from 18-8 austenitic stainless steel (Material Grade A2), it offers solid corrosion resistance without a coating, making it suitable for environments where bare metal is acceptable or preferred. This fastener is partially threaded along the shank. Machinists, maintenance technicians, and industrial tradespeople install this type of screw in structural assemblies, machinery, and equipment frames where Allen-key or hex-drive torque is needed.

This socket cap screw fits applications requiring a coarse 1-8 UNC thread pattern and a longer engagement length. The 5-inch body accommodates thicker material stacks or assemblies with extended grip requirements. It is appropriate for general industrial, mechanical, and MRO use where stainless steel is specified for corrosion resistance or material compatibility. The bright, uncoated finish maintains dimensional accuracy and avoids coating thickness variability that can affect thread fit. Suitable for both shop fabrication and field service work.

Key Features

• 1-8 UNC coarse thread for reliable engagement in standard tapped holes
• 5-inch length under head accommodates thick material stacks or extended grip requirements
• 3/4-inch hex socket drive for high-torque Allen-key or hex-driver installation
• 18-8 austenitic stainless steel (A2) provides corrosion resistance without a plated coating
• Partially threaded shank reduces stress concentration and suits bolted joint applications
• Meets ASME/ANSI B18.3 and ASTM F837 fastener standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw for any application requiring a 1-8 UNC coarse-thread fastener with a 5-inch length under head and a 3/4-inch hex drive. Verify thread class and hole fit in the assembly before installation.

Installation Notes

Installation is performed with a 3/4-inch hex (Allen) key or hex-drive socket wrench. Ensure the mating tapped hole is clean, free of debris, and correctly tapped to 1-8 UNC before driving the fastener. Apply thread lubricant or anti-seize compound as appropriate for the service environment, particularly in stainless-to-stainless applications where galling is a risk. Follow applicable mechanical codes and engineering torque specifications for the joint design.