DIN912 Hexagon Socket Head Cap Screws Carbon steel Grade 12.9

Short Description:

Allen bolt is usually divided into with knurled and without knurled,Allen bolt with knurled is a bolt above 8.8, and the one without knurled is a low strength hex bolt, like the one with 4.8s is usually without knurled.
Allen bolt is similar to the countersunk head screw, the nail head is buried in the machine, the connection strength is larger, but the screw must be installed and removed with the corresponding specification hex socket wrench. Generally used on various machine tools and their accessories.
Our factory can customize and produce Allen bolts of different specifications and materials for you, welcome your inquiry.