TRUSCO countersunk head tapping screw, Type 1A, unichrome, M4 x 30, 10 pieces, small pack, Y834-0430, 1 bag

Catalog number: Y834-0430 Features: ●The countersunk head is used after the hole is countersunk. Since the head is recessed, it is ideal when you do not want the screw to protrude from the surface. ●This is a small pack series that is convenient when you only need a small amount. Applications: ●Mainly thin steel plates (generally 1.2 mm or less), hardboard, wood, asbestos, etc. Specifications: ●Dimensions (mm) d: M4 ●Dimensions (mm) L: 30 ●Nominal dimensions (mm) d: 4 ●Head diameter (mm): 8 ●Package: Bag ●Tapping type 1 (Type A) Material/Finish: ●Steel ●Surface treatment: Nickel plated finish Note: ●The length of the countersunk head screw indicates the total length from the head, not the length of the shaft from the neck.