Value Collection 872157PR Hex Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION 872157PR is a hex socket cap screw designed for secure, high-torque fastening in mechanical assemblies, fixtures, and equipment. Sized at 1/4-20 UNC thread with a 1-1/2 inch length under head, this partially threaded fastener is driven with a 3/16 inch hex key. The alloy steel construction provides the tensile strength required for demanding industrial and trade applications. A zinc-plated finish adds a baseline level of corrosion resistance suitable for general indoor and sheltered environments. Manufactured to ASME B18.8 and ASTM A574 standards, this screw meets recognized dimensional and mechanical property requirements.

This fastener is appropriate for use in light machinery, HVAC equipment frames, plumbing fixture mounting, electrical enclosures, and general mechanical assemblies where a flush or recessed cap screw is specified. The socket drive allows installation in confined spaces where a standard hex bolt or slotted head would not fit. Sold individually with a minimum order quantity of 100 pieces, making it suitable for stocking or production-quantity procurement.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard tapped holes
• 1-1/2 inch length under head, partially threaded
• 3/16 inch hex socket drive for use with standard Allen keys or hex bits
• Alloy steel construction meets ASTM A574 mechanical requirements
• Zinc-plated finish for corrosion resistance in general-duty environments
• Conforms to ASME B18.8 dimensional standards

Compatibility

Designed as a standard 1/4-20 UNC hex socket cap screw for use in any application requiring an ASME B18.8 or ASTM A574 compliant partially threaded socket head fastener.

Installation Notes

Install using a 3/16 inch hex key or socket bit; ensure the receiving hole is correctly tapped to 1/4-20 UNC specification before installation. Power down or de-energize any equipment before fastener replacement on live assemblies. Do not exceed the rated torque for the thread size and material grade as specified in applicable mechanical or equipment standards. Inspect threads for damage before installation to avoid galling or cross-threading.