5/16-18 x 1 3/4 316 Stainless Steel Flat Head Socket Cap Screw delivers a flush fastening option for equipment builders balancing service access, finished appearance, and corrosion exposure. The design helps solve the common problem of securing a cover without leaving hardware proud of the surface. Its corrosion-resistant properties make it suitable for instrumentation, electrical enclosures, and outdoor equipment exposed to moisture. A hex socket allows the screw to be tightened through the head while preserving the smooth countersunk form. It may be used on food and beverage machinery, inspection plates, and washdown-compatible equipment assemblies. Purchasing managers can use the FHCS-316 item number to identify the size clearly for RFQs and repeat orders. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.