Sanko Techno Hard Edge Drive HDW Type Steel (140 pieces) HDW-445 1 PK

Catalog number: HDW-445 Features: *The head shape conforms to JIS standards, improving workability and fitting of parts. *No need for plugs, so drilling diameter can be small. *Steel is Geomet-treated, which does not contain hexavalent chromium, and stainless steel is Spack-treated. Uses: ●For concrete, blocks, and wood ●Saddle fastening for wiring and piping, installation of switch boxes, installation of door frames, etc. Specifications: ●Nominal diameter d (mm): 4.0 ●Pre-drilled hole diameter (mm): 3.4 ●Embedding depth (mm): 30 ●Maximum tensile load (kN): 2.8 ●Drilling depth (mm): 55-t ●Length (mm): 45 ●Compatible screwdriver: Phillips No. 2 ●Head height (mm): 3.6 ●Drilling diameter (mm): 3.4 ●Bit used: No. 2 ●Neck length (mm): 45 ●Nominal diameter: 4 ●Head diameter (mm): 10.0 ●Packed Material/Finish: ●Steel ●Surface treatment: Geomet treatment Note: ●The maximum tensile load is the value of concrete strength Fc=21N/mm2. ●Pre-drilling should be done with the specified drilling diameter. ●The drilling depth is the length ±10mm-t (thickness of the object to be attached). ●For nominal diameter 4, use a screwdriver (manual). ●Do not overtighten. Tightening more than necessary may cause the screw to break or the head to jump off.