truss head self drilling screw - alibaba.com
hex self drilling screw roof screw 1. Standards 1. din7504 2. Material 2. Stainless steel(SS304,SS316), carbon steel(C1022,1010,1008) copper, iron and so on. 6.packing of this hex self drilling screw :General Export Packing poly bag cartons or according require. 7.size of this hex self drilling screw :ST 2.9-6.3 #6--#14 8.delivery of this hex self drilling screw:within 10 days or according ...
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