Value Collection 872145PR Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 872145PR is a hex socket cap screw designed for fastening applications that require a clean, flush-drive interface and reliable clamping force. It features a 1/4-20 UNC thread form, a 1/2 inch length under head, and is fully threaded from tip to head. The 3/16 inch hex drive socket accepts a standard Allen wrench or hex bit driver. Constructed from alloy steel with a zinc-plated coating, it offers solid mechanical strength and basic corrosion resistance for general industrial use. Machinists, maintenance technicians, and assembly professionals install this type of fastener across a wide range of fabrication and equipment applications.

This screw is suited for general industrial, mechanical, and structural fastening in both shop and field environments. The 1/4-20 UNC coarse thread is one of the most common inch-series thread standards in North American manufacturing, making this fastener a frequent choice for machine assemblies, jigs, fixtures, and equipment enclosures. The fully threaded configuration maximizes thread engagement across the full length under head, which is especially useful in thin-material or blind-hole applications.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard inch-series tapped holes
• Fully threaded shaft maximizes thread engagement over the entire 1/2 inch length under head
• 3/16 inch hex socket drive accepts standard Allen wrenches and hex bit drivers
• Alloy steel construction provides high tensile and shear strength
• Zinc-plated coating delivers basic corrosion resistance for general-purpose environments
• Conforms to ASME B18.8 and ASTM A574 fastener standards

Compatibility

Designed as a standard replacement or stock fastener for any application requiring a 1/4-20 UNC hex socket cap screw with a 1/2 inch length under head and 3/16 inch drive.

Installation Notes

Installation is performed with a 3/16 inch hex key or Allen-type driver. Ensure the mating tapped hole is clean and free of debris before driving. Do not exceed the recommended seating torque for 1/4-20 alloy steel fasteners as specified by the equipment manufacturer or applicable engineering standards. In corrosive or high-humidity environments, consider whether the zinc-plated finish is appropriate for the service conditions.