Value Collection KP89551 Flat Socket Cap Screw 3/8-16

Product Description

The VALUE COLLECTION KP89551 is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. The 82-degree flat head seats flush with or below the mating surface, eliminating protrusions that could interfere with mating components or moving parts. Driven by a 5/16-inch hex socket, this screw requires an Allen key or hex bit driver for installation. Manufactured from 18-8 stainless steel, it provides solid corrosion resistance in moderate-exposure environments. Thread size is 3/8-16 UNC with fully threaded engagement along the 1/2-inch overall length. Sold in a package of 25.

This screw is suited for mechanical assemblies, equipment enclosures, brackets, and structural connections where a flush fastener is required. The 18-8 stainless steel construction makes it appropriate for indoor and light outdoor use, including HVAC equipment panels, plumbing fixture mounting, and electrical enclosure hardware. The fully threaded shank provides maximum thread engagement in thin materials. This fastener is installed by HVAC technicians, plumbers, electricians, and mechanical contractors as part of equipment assembly or field repair work.

Key Features

• 82-degree flat head seats flush or countersunk for a low-profile installation
• 5/16-inch hex socket drive for Allen key or hex bit installation
• 18-8 stainless steel construction for corrosion resistance in moderate environments
• 3/8-16 UNC thread form for compatibility with standard inch-series tapped holes
• Fully threaded 1/2-inch overall length for maximum engagement in thin materials
• Meets ASME/ANSI B18.3 and ASTM F83 fastener standards

Compatibility

Designed as a standard inch-series flat socket cap screw for use in any 3/8-16 UNC tapped hole or clearance hole requiring a countersunk 82-degree flat head fastener.

Installation Notes

Installation requires a 5/16-inch hex key or hex socket bit. Ensure the mating hole is properly countersunk to 82 degrees before installing to achieve a flush seating surface. De-energize or shut off any equipment before replacing or installing fasteners on live assemblies. Torque to the value specified in the equipment manufacturer's service documentation for the application.