Catalog number: GA25K Features: ● Even without a pilot hole, the bit hole firmly grips the screwdriver, allowing for reliable and safe screwing. Applications: ● For hard gypsum boards and calcium silicate boards. Specifications: ● Length (mm): 25 ● Suitable screw diameter (mm): 4 ● Pilot hole diameter (mm): No pilot hole required ● Total length (mm): 25 ● Head diameter (mm): 13 ● Maximum tensile load: 0.26kN/0.37kN (gypsum board thickness 9.5mm/12.5mm) ● Head diameter: 13mm ● Suitable screw length: Mounting object + 20mm or more Material/Finish: ● Zinc alloy die-cast Set contents/Accessories: ● Truss tapping screws M4 x 25 200 pieces
