#14 x 1-1/2" Self Drilling Screws, 50pcs Roofing Screws with EPDM Washer Throw Switches * These Screwdriver Bits are

* These Screwdriver Bits are with magnetic design

Continuous Work-Life: 20

50pcs x Copper Solid Rivet

Peak Force :45N

#14 x 1-1/2" Self Drilling Screws, 50pcs Roofing Screws with EPDM Washer Throw Switches * These Screwdriver Bits areDescription: 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