1/4-20 x 5/16 316 Stainless Steel Flat Head Socket Cap Screw supports flush-mounted construction in equipment that must be handled, wiped down, or positioned near moving components. Countersunk seating allows covers and plates to close cleanly without raised hardware disrupting the surface. 316 stainless steel is often chosen where corrosion resistance is needed around pump assemblies, valve assemblies, and marine hardware. The socket drive helps maintenance teams remove and reinstall covers without changing the flush exterior profile. It can help secure covers and panels on processing equipment while keeping exposed hardware flush with the surface. Distributors and OEM buyers can align the FHCS-316 designation with 316 stainless flat head socket cap screw inventory. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.