3/8-16 x 1 1/2 316 Stainless Steel Flat Head Socket Cap Screw is commonly specified where a countersunk screw must hold a cover securely while preserving a clean exterior profile. Countersunk seating allows covers and plates to close cleanly without raised hardware disrupting the surface. Its stainless construction is useful for chemical processing, pharmaceutical equipment, and outdoor applications where moisture is present. Internal hex drive access is useful in compact equipment where a clean outside face still needs secure tightening. Common uses include equipment panels, machine covers, inspection covers, and electrical enclosures. OEM manufacturers can document the exact size while keeping stainless flat head hardware consistent across builds. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.