Elco Dril-Flex Structural Hex Washer Head Self-Drilling Screws: #14-20 x 4, #4 Point fpsh block and steel

block and steel

insulation

Measurements are made from the underside of the head to the tip of the screw to obtain fastener length

Crete-Flex SS4 fasteners deliver corrosion resistance

Elco Dril-Flex Structural Hex Washer Head Self-Drilling Screws: #14-20 x 4, #4 Point fpsh block and steelDril Flex screws are engineered and processed to help prevent hydrogen induced brittle failures. Each fastener undergoes the unique Flex Technology dual hardening process, ensuring the optimal combination of ductility and hardness required for maximum performance in the field. Stalgard coating provides additional corrosion resistance. Testing of this product, in accordance with ASTM standards, has proven that Dril Flex screws provide the same