Timco L100B Metal Construction Light Section Screws - Hex - Self-Drilling - Exterior - Silver Organic 5.5 X 100 Box 100

Hex head self-drilling screws, for joining roofing sheets to light section steel (Max. 5.0mm) without the need to pre-drill a hole. Exterior plating gives a reliable and durable corrosion resistant coating which resists 500 hours salt-spray Fire Classification: A1" Thread Dia. mm: 5.5 Length mm: 100 Head Type: Hex Fixed Washer Dia. mm: 12.00 Point Type: Self-Drilling No.3 Socket Size mm: 8 Finish: Exterior (Silver Organic) Material: Case & Core Hardened Carbon Steel Effective Thread Length mm: 88 Max Drilling Thickness mm: 5.0Size 5.5 x 100 - 100 Pieces