5,5x40 Selbstbohrer TEK Schrauben Befestigung Metall Dachverkleidung Blechbohrer
Self Drilling TEK Screws (Heavy Gauge) Fine Thread. Maximum Fixture Thickness without washer – 13mm. Maximum Fixture Thickness with bonded washer – 10mm. High Tensile Hardened Steel Zinc plated. Bonded Washer Size – 19mm.