Carbon steel cross round head drill tail screw plated with blue, white, zinc, dovetail self tapping screw extended

410 stainless steel cross round head drill tail self tapping screw pan head self tapping dovetail nail

410 stainless steel cross flat head drill tail screw cross countersunk self tapping screw

Carbon steel/cross groove flat head/drill tail screw/blue and white zinc plated countersunk head self tapping dovetail screw

Carbon steel cross round head Huasi drill tail screw plated with blue and white zinc, self tapping and self drilling dovetail screw

304 stainless steel/cross countersunk head/non loosening screw/half tooth small screw extension