High Strength Range

SUPERBOLT® Torquebolts

High Strength Range

General Description

SUPERBOLT® SB12 series Torquebol ts offer higher strength and are more suitable for low temperatures. Other features are the same as SB8 Torquebolts. Due to their high pre-load capabilities they replace standard 10.9 and 12.9 bolts.

Gear boxes, BOF applications, mining equipment, pinion stands, clamp type flange connections, wind tunnels, compressors, etc.

Available upon request:

Inch threads (UN and Whit)
D > M160
other sizes and specials
anti-corrosion protection
special materials
temperatures below –10 °C
internal instead of external hexagon on head


Technical data

property class ≤ M60 class 10.9
> M60 30CrNiMo8
temperatures –10 to +250 °C  
max. bolt stress approx. 500 to 850 N/mm2; depending on size  
max. values valid for permanent bolting applications, inclusive reaction forces