10 TEK SCREWS STANDARD TEK - LIGHT SECTION Standard Tek Unwashered Hex Head Tek 3 For 1.2mm - 3.5mm Steel TECHNICAL Designed For: Fixing cladding and roofing applications to hot and cold rolled purlins/rails Head Style: Hexagonal Drive: 5/16” hexagonal Thread Form: Coarse Thread (Tek 3) Shank Material: Carbon steel Material Grade: AISI C1022 Coating: 500hr Evoshield® ✓ Evoshield Coating Designed For: Fastening in aluminium sheeting and panels Head Style: Hexagonal Drive: 5/16” hexagonal Thread Form: Coarse Thread (tek 3) Shank Material: Stainless steel Material Grade: 304/Euro A2 ✓ Bi-metal ✓ Super hard, super sharp drill tips ensure fast drill times ✓ Hex flange head design provides sure clamping action ✓ Aggresive thread form design guarantees consistent tapping and superb holding power ✓ High carbon, high performance drill point ensures superior drilling characteristics, giving accurate drilling every time ✓ Bi-metal fasteners have welded, hardened carbon steel drill point married to a 304/Euro A2 grade stainless steel shank ✓ Ultimate corrosion protection to ensure long-term fastener integrity 2002/95/EC