Timco Metal Const H/S EPDM Washer Hex S/D Screw 5.5 x 38mm PK100 is a durable, high-performance fixing designed for metal-to-metal applications in construction, roofing, and cladding. Manufactured from premium, corrosion-resistant steel, these self-drilling screws deliver exceptional strength and longevity. The hexagonal head ensures maximum torque control and a secure fit, while the bonded EPDM washer provides a watertight seal that prevents leaks and protects against corrosion. The self-drilling point allows for effortless penetration into metal surfaces, removing the need for pre-drilling and improving installation efficiency. Built for professionals, these screws combine speed, precision, and reliability for lasting performance.