6-18X3/4 Square Flat Self Tapping Screw Type A Fully Threaded Zinc (Pack Qty 10,000) BC-0612AQF

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 minimumYou may also like 1/2X1 1/2 Hex Lag Screw 18-8 Stainless Steel (Pack Qty 50) BC-5024L188.