8-18 x 1 Hex Washer Head Self Drill Screw 410 SS

8-18 x 1 Hex Washer Head Self Drill Screw 410 SS . These hex drive self drilling screws in 410 stainless steel are used for a variety of applications including attaching materials to metal up to 12 gauge in thickness. 410 stainless provides both corrosion resistance and the hardness required for drilling through steel.