#12 x 4" Self Drilling Screws, 25pcs Roofing Screws with EPDM Washer 80x40x0.6mm bioprocess manufacturing

bioprocess manufacturing

Part Numbers/FCC ID: KR5S180144014

chemical industry

avoiding outside interference

Our zip clip buckle can be used in dryer or washing machine

#12 x 4" Self Drilling Screws, 25pcs Roofing Screws with EPDM Washer 80x40x0.6mm bioprocess manufacturingDescription: 1. Material: Both the screw and the metal washer are made of carbon steel, a zinc plated surface finish, which is corrosion resistant; the black washer is made of EPDM, which is wear resistant and oxidation resistant. 2. Advantages: The hex washer head has a flange with an EPDM rubber washer on the bottom to prevent leaks, loosening and damage to mating surfaces. The underside of the hex head provides a large flat bearing surface that