Catalogue number: BW425B Features: ● Concrete screws that can be used to attach pipe and wiring bands, metal fittings, etc. ● High and low screws, compatible with the padding method that allows for re-attachment. (Pads are used when the screw spins freely, so the number of pads is not included for the number of screws.) Specifications: ● Nominal diameter d (mm): 4 ● Nominal diameter (mm): 4 ● Total length (mm): 25 ● Threaded part (mm): 24 ● Head diameter (mm): 10.0 ● Color: Silver ● Head shape: With seat ● Pilot hole diameter (φmm): 3.4-3.5 ● Packed Material/Finish: ● Iron
