8-15X1 1/2 Phillips Indent Hex washer Self Tap Screw Type A Full Thread 18-8Stainless Steel (Pack Qty 1,500) BC-0824APW188

For self starting in thin (.015-.050 thick) metal or resin-filled plywood. 18-8 Stainless steel tapping screws may be used in applications which require general atmospheric corrosion resistance. Fastening stainless steel parts to aluminum or steel can cause a type of corrosion known as a galvanic couple in some environments Screws shall be quenched in liquid and then tempered by reheating to 650°F minimum Steel: Rockwell C45 minimum