Value Collection R63064169 Flat Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION R63064169 is a flat socket cap screw designed for flush or countersunk fastening applications across a wide range of industrial, mechanical, and structural assemblies. Sized at 1/4-20 UNC thread by 5/8 inches overall length, this screw features an 82-degree flat head profile that seats flush with or below the surface of the mating material. The hex socket drive accepts a 5/32-inch hex key, allowing high torque application in tight clearance areas. Constructed from 18-8 stainless steel, it offers solid corrosion resistance suitable for wet, chemical-exposure, or outdoor environments. Installation is typically performed by machinists, maintenance technicians, or fabricators working in general industrial or OEM assembly settings.

This flat socket cap screw is appropriate for use in metal, plastic, or composite assemblies where a low-profile flush head is required. The 1/4-20 UNC thread standard is one of the most common inch-series fastener sizes, making this screw compatible with a broad range of tapped holes, inserts, and nuts in production and repair environments. The 18-8 stainless steel construction makes it a practical choice in food processing, marine-adjacent, or washdown settings where mild to moderate corrosion resistance is needed without upgrading to 316-grade material.

Key Features

• 82-degree flat head profile for flush or countersunk seating
• 5/32-inch hex socket drive for use with standard Allen or hex keys
• 1/4-20 UNC thread form — common inch-series standard
• 5/8-inch overall length measured from head top to tip
• 18-8 stainless steel construction for corrosion resistance
• Minimum order quantity of 100 units per order

Compatibility

Designed as a standard inch-series flat socket cap screw for use in any application requiring a 1/4-20 UNC tapped hole or compatible threaded insert with an 82-degree countersunk seat.

Installation Notes

Installation requires a 5/32-inch hex key or Allen driver. Ensure the mating hole is tapped to 1/4-20 UNC and that the countersink angle matches the 82-degree flat head profile before seating the fastener. Apply appropriate thread engagement depth per application requirements and do not overtorque, as stainless steel fasteners are susceptible to galling — the use of anti-seize compound is common practice. Follow applicable torque guidelines for the fastener grade and joint material.