5/16-18 X 1-3/4″ Socket Cap Screws Flat Head Hex Socket Drive Nylon Patch Alloy Steel Thermal Black Oxide (100 / Pkg.) Premium

Cap Screws Flat Socket Nylon Patch Alloy Thermal Black Oxide 5/16-18 X 1 3/4 are engineered for durable, high-precision fastening in demanding environments. The flat socket cap design delivers a flush, professional finish, ideal for machinery housings, automotive assemblies, and equipment enclosures where clearance matters.

Featuring a nylon patch insert for vibration damping and electrical insulation, these screws pair with a sturdy alloy steel body for reliable strength. The Thermal Black Oxide finish enhances corrosion resistance and provides a sleek, low-profile appearance that resists wear in harsh conditions.

Specifications: Thread size 5/16-18, length 1 3/4″, head type flat socket, material alloy steel, finish thermal black oxide, nylon patch insert. Suitable for a wide range of projects requiring a secure, flush-fastening solution.