Value Collection 011547P Hex Socket Cap Screw 1-8 Unc

Product Description

The VALUE COLLECTION 011547P is a partially threaded hex socket cap screw designed for high-strength bolted assemblies in industrial, mechanical, and structural applications. Sized at 1-8 UNC with a 6-inch length under head, this fastener is driven with a 3/4-inch hex key. The body is machined from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces surface glare. It meets ASME/ANSI B18.3 and ASTM A574 standards, confirming tensile strength requirements appropriate for demanding load-bearing joints. Machinists, maintenance technicians, and industrial assembly crews are the primary installers.

This cap screw is suited for applications requiring a recessed drive head and controlled clamping force across metal-to-metal interfaces. Partially threaded shanks help maintain alignment and resist shear loads in precision-fit bores. Common use cases include machine tool assemblies, heavy equipment frames, jig and fixture fabrication, and structural steel connections where a flush or low-profile head is required.

Key Features

• 1-8 UNC thread size for coarse-thread engagement in standard tapped holes
• 6-inch length under head accommodates thick material stacks
• Partial threading preserves shank integrity and shear resistance
• 3/4-inch hex socket drive for high-torque installation with standard hex keys or Allen-drive tools
• Black oxide finish provides mild corrosion resistance and a matte appearance
• Meets ASME/ANSI B18.3 and ASTM A574 standards for alloy steel socket cap screws

Compatibility

Designed as a standard 1-8 UNC coarse-thread socket cap screw for use in any tapped hole or threaded insert conforming to the 1-8 UNC thread form per ASME/ANSI B18.3.

Installation Notes

Installation is performed by machinists or maintenance technicians using a 3/4-inch hex key or Allen-drive socket. Always verify the mating tapped hole is clean, properly sized, and free of debris before driving. Apply appropriate thread lubricant or anti-seize compound if required by the assembly specification. Follow applicable torque guidelines from ASTM A574 or the equipment manufacturer for 1-inch alloy steel socket cap screws.