Screw, Flat Head, Socket 4-40 UNC-3A x 5/16″, Center Vented, 18-8 Stainless Steel, Precision Cleaned $1.39 Screw, Flat Head, Socket 4-40 UNC-3A x 5/16", Center Vented, 18-8 Stainless Steel, Precision Cleaned quantity Add to cart SKU: FA -405-WO-20282-1 Additional information Additional information Weight 0.002000 lbs