Value Collection 199543 Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 199543 is a 1/4-20 UNC hex socket cap screw designed for secure mechanical fastening in trade and industrial applications. It features a 3/16-inch hex drive and a 1-1/2-inch length under head with partial threading. Constructed from 18-8 stainless steel, this fastener offers solid corrosion resistance and is suited for environments where mild chemical exposure or moisture is a factor. Machinists, maintenance technicians, and mechanical contractors install this type of fastener when a recessed-drive, low-profile cap screw is required in tight assemblies.

This screw is commonly used in light-duty to medium-duty mechanical assemblies found in HVAC equipment, pump housings, electrical enclosures, and general industrial machinery. The 1/4-20 UNC thread form is one of the most widely used unified coarse thread sizes in North American trade work, making this screw a standard fit across many fastener applications. It is sold individually but carries a minimum order quantity of 100 pieces per order.

Key Features

• 1/4-20 UNC thread size for broad compatibility with standard tapped holes
• 1-1/2-inch length under head provides adequate grip for medium-depth assemblies
• 3/16-inch hex socket drive accepts standard hex keys and Allen-drive bits
• Partially threaded shank allows precise clamping without full thread engagement through the fastened material
• 18-8 stainless steel construction resists corrosion in wet or chemically exposed environments

Compatibility

Designed as a standard 1/4-20 UNC hex socket cap screw suitable for any tapped hole or threaded insert conforming to the UNC 1/4-20 thread standard in mechanical, HVAC, or industrial assembly applications.

Installation Notes

Install using a 3/16-inch hex key or Allen-drive bit; avoid over-torquing stainless steel fasteners, as galling can permanently seize the thread engagement. Verify the tapped hole depth and thread class before installation. Always de-energize and lock out equipment before accessing fasteners on live mechanical or electrical assemblies in accordance with applicable OSHA lockout/tagout procedures.