Hex Head Self Drilling Screw + EPDM Washer:5.5 x 38mm (1½") - DIN 7504K

The Hex Head Self Drilling Screw + EPDM Washer is a fastening solution designed for direct installation into metal substrates without the need for pre-drilling. Constructed to meet the DIN 7504K standard, this fastener combines a hexagon head with a self-drilling tip and an integrated EPDM washer to provide a secure seal. This configuration is typically selected for applications where a tight, weather-resistant connection is required, as the EPDM washer offers durable protection against moisture ingress. When selecting this fastener, buyers should verify the 5.5mm nominal diameter and 38mm (1½") nominal length to ensure compatibility with their specific material thickness and load requirements. The DIN 7504K designation indicates the screw’s head and thread form, while the EPDM washer material defines its sealing properties.