Catalog number: SP-4275 Features: ●The spoon-shaped cutting blade at the tip cuts the wood fibers, drilling pilot holes while the screw thread is screwed into the wood, preventing wood splitting. ●The thick screw ensures a high level of retention after installation. It can be securely fastened regardless of the knots or hardness of the wood. ●It can penetrate thin steel plates (thickness 1.0 mm or less). Applications: ●For MDF and other wood materials including hard wood. ●For components such as particle board, MDF board, wood wool board, acrylic board, interior panel, calcium silicate board, siding, door frames, composite boards, etc. Specifications: ● Dimensions (mm) d: 4.2 ● Total length (mm): 75 ● Thread length (mm): 45 ● Head diameter dk (mm): 8.2 ● Compatible driver: No. 2 ● Nominal dimension (mm) d: 4.2 ● Nominal dimension (mm) L: 75 ● SL (from bottom of seat to thread) (mm): 30 ● Working length EL (mm): 64 ● Thread pitch (mm): 2.82 (9 threads) ● Head diameter D (mm): 8.2 ● Head height (mm): 3.9 ● Spoon screw ● Sarflex head ● Spoon point ● Coarse thread (course thread) Material/Finish: ● Iron (equivalent to SWCH18A) ● Surface treatment: Chromate Caution: ● Fastening to wooden base ● Cannot be used on steel plates with a thickness of 1.2 mm or more.
