Catalog number: B081-0320 Features: ●The strength of the lower neck part where the load is applied is stronger than that of the fully threaded type. Applications: ●Use when the head is in the way. Specifications: ●Dimensions (mm) d: M3 ●Dimensions (mm) L: 20 ●Thread pitch (mm): 0.5 ●Thread length (mm): 20 ●Strength category: 8.8 ●Surface treatment: Black dye finish (black oxide coating) ●Thread type: Full thread ●Package: Bolt pack (blister) Material/Finish: ●Carbon steel for mechanical construction ●Surface treatment: Black dye finish (black oxide coating) Note: ●Part numbers B081-0320, 0425, 0630, and 0835 are strength category 8.8.
