Hexagon bolt M6
Hexagonal bolt M6 size.
Recommended length of the bolt for U-21 channels is 20mm when mounting parts with material thickness 5 mm. Recommended length of the bolt for U-41 channels is 30mm when mounting parts with material thickness of 5 mm. Increase the length of the bolt accordingly when mounting parts with more than 5 mm material thickness. Longer lengths in DIN 931 partly threaded. STD: 200.

