Value Collection 011531BR Hex Socket Cap Screw 1-8 Unc

Product Description

The VALUE COLLECTION 011531BR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, fixtures, and structural connections. Sized at 1-8 UNC with a 2.75-inch length under head, it accepts a 0.75-inch hex drive for reliable torque application. The screw is fully threaded and manufactured from alloy steel with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for demanding load-bearing and precision-fit installations performed by machinists, millwrights, and general maintenance technicians.

This fastener fits applications requiring a coarse 1-8 UNC thread in alloy steel with a socket drive. It is commonly used in industrial machinery, heavy equipment assemblies, tooling fixtures, and structural fabrication where high clamp load and precise torque control are needed. The black oxide finish suits indoor and sheltered environments where a clean, low-glare appearance is required alongside moderate surface protection.

Key Features

• 1-8 UNC coarse thread for reliable engagement in standard threaded holes
• 2.75-inch length under head with full threading along the entire shank
• 0.75-inch hex socket drive for high-torque application with standard Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 for high tensile strength
• Black oxide coating reduces corrosion and surface glare in sheltered environments
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or standard-stock fastener for any application requiring a 1-8 UNC fully threaded hex socket cap screw with a 0.75-inch drive and 2.75-inch length under head.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 0.75-inch hex key or socket bit driver. Always confirm the receiving thread is clean and free of debris before installation. Torque to the value specified by the equipment manufacturer or applicable structural design standard. Do not overtorque alloy steel cap screws into softer base materials such as aluminum without consulting thread engagement and material strength specifications.