I-star, countersunk head, partial thread with milling ribs under the head, electro-galvanized, silver, coated Suitable for universal use in hardwood, chipboard, plastics and other materials, can be processed without pre-drilling and without material splitting. Type Article Version Universal screws Outer diameter 4.0 mm Features Torx, countersunk head Main color silver Length 30.0 mm Variant Connection technology