Catalog number: B107-0420 Features: ●The pin in the center of the 6-groove star-shaped hole means it cannot be removed with normal tools. ●It transmits torque well and does not cam out, making it easy to use. Specifications: ●Dimensions (mm) d: M4 ●Dimensions (mm) L: 20 ●Strength category: Equivalent to A2-50 ●Head diameter (mm): 8 ●Head thickness (mm): 2.3 ●Package: Bolt pack (blister) Material/Finish: ●Stainless steel (A2)
