Carbon steel/cross groove/round head with pad/self tapping screw/PWA/nickel plated and hardened

Carbon steel coated with white zinc/cross groove round head with pad/self tapping screw/pan head with intermediate screw/chassis screw

304 stainless steel/cross round head/self tapping screw with pad/PWA pointed tail screw

Stainless steel/cross groove screw/pan head self tapping screw/round head with medium

Carbon steel/cross groove round head flat tail/self tapping screw/nickel plated hard rust proof

Stainless steel/cross round head/self tapping small screw/black zinc plated/pan head flat tail screw