Timco Metal Construction Heavy Section Screws - Hex - Self-Drilling - Exterior - Silver Organic 5.5 x 100 - 100 Pieces Fire Torch Surface hardened up to 750

Surface hardened up to 750 HV to prevent torque shearing under load and a core hardness of up to 450 HV for improved ductility

Heavy duty forged steel Stillson wrench

site damage or sesin contaminatio

8mm) to timber

Timco Metal Construction Heavy Section Screws - Hex - Self-Drilling - Exterior - Silver Organic 5.5 x 100 - 100 Pieces Fire Torch Surface hardened up to 750Description Timco Metal Construction Heavy Section Screws Hex Self Drilling Exterior Silver Organic 5. 5 x 100 100 Pieces product description: Used for attaching metal to heavy section steel (Max. 12mm) without the need to pre drill a hole. NOTE: Partially threaded. Product features: Exterior plating gives a reliable and durable corrosion resistant coating which resists 500 hours salt spray Material: Case & Core Hardened Carbon Steel Finish: Exterior