Value Collection 63863 Flat Socket Cap Screw 1/4-28 X 1/2 in Ss

Product Description

The VALUE COLLECTION 63863 is a flat socket cap screw designed for precision fastening applications where a flush or countersunk profile is required. Machined to a 1/4-28 UNF thread specification with a 1/2-inch overall length, the screw is fully threaded from tip to head. The 82-degree flat head seats flush with the mating surface when installed in a properly prepared countersink. Drive engagement is achieved through a 5/32-inch hex socket, compatible with standard Allen-type drivers. Constructed from 18-8 stainless steel, the fastener offers solid corrosion resistance in moderate environments and is well-suited for mechanical assemblies, equipment panels, and enclosures where head protrusion cannot be tolerated.

This screw is used across a range of trade and industrial applications including HVAC equipment assembly, electrical panel fabrication, plumbing fixture mounting, and general mechanical service work. The fine UNF thread pitch provides strong clamp load in thin or tapped metal sections. The 100-piece package format suits service professionals maintaining fastener stock for recurring installation and repair tasks. No washers are required with the countersunk head geometry when properly matched to an 82-degree countersink.

Key Features

• 82-degree flat head for flush countersunk installation
• 1/4-28 UNF fine thread for high clamp load in tapped metal
• 5/32-inch hex socket drive for standard Allen wrench engagement
• Fully threaded along entire 1/2-inch length
• 18-8 stainless steel construction for corrosion resistance
• Sold in 100-piece increments for shop and field stock replenishment

Compatibility

Designed as a standard 1/4-28 UNF flat socket cap screw compatible with any application requiring an 82-degree countersunk hex socket fastener in that thread size and overall length.

Installation Notes

Install and remove using a calibrated 5/32-inch hex key or Allen driver to avoid rounding the socket. Ensure the mating countersink is machined to an 82-degree angle to achieve full flush seating. De-energize and lock out any electrical or mechanical equipment before accessing fastened assemblies. Apply thread-locking compound or anti-seize as appropriate for the specific application environment.