1.1 This specification covers the chemical and mechanical requirements for stainless steel inch hexagon socket button (SBHCS) and flat countersunk (SFHCS) head cap screws with nominal thread 0.060 through 0.625 in. intended for use in a This specification covers the chemical and mechanical requirements for stainless steel hexagon socket button and flat countersunk head cap screws intended for use in applications requiring general corrosion resistance. The following three conditions ar