Product : alto grade phillips wafer head self drilling screws Material : Made of 410 unsullied steel, more wholesome and not gentle to break Features : No pre-drilled holes needed, modified Truss head is unnecessary comprehensive with a low-profile dome and intrinsical track washer, Phillips driver designed to prevent over-tightening Application : first-class for both inside and alfresco humourous and hold in use, such that for furniture decoration, mechanized maintenance, powerful rust resistance in water applications Package Include 6 Most-Used Sizes : # 8 x 5/8 '' ------------------------ 50pcs # 8 x 1/2 '' ----------------------- 50pcs # 8 x 3/4 '' ----------------------- 40pcs # 8 x 1 '' -------------------------- 40pcs # 8 x 1-1/4 '' -------------------- 30pcs # 8 x 1-1/2 '' -------------------- 30pcs .