DIN7504-N pan head self drilling screw C1022 steel hardened Size 6, 7, 8, 9, 10, ... flange head or hex washer head4. Optional aluminium/steel washer, EPDM washer5. DIN7504-K or -N ... steel, stainless steel SS41010. Surface Treatment: ZP or YZP, BZP, brass, bronze coated options11. Full threaded drilling, double ... 10x1#10x1-1/2#10x2Immediately shipment! hardened steel pan head self drilling screw