Cable Bolts

Cable bolts
Cable bolts are designed to be used in ground and rock reinforcement near mining excavations and in particular near workings in weak strata with lower strength or entering mining pressure zones.
Cable bolts are made from cable of fi-15,5 mm and 1+6 structure in accordance with PN-71/M-80236. The following types of bolt can be distinguished: […]

Bolted joints
Bolted joints are one of the most common elements in construction and machine design. They consist of cap screws or studs that capture and join other parts, and are secured with the mating of screw threads.
There are two main types of bolted joint designs. In one method the bolt is tightened to a calculated […]

Thread strength
Nut threads are designed to support the rated clamp load of their respective bolts. If tapped threads are used instead of a nut, then their strength needs to be calculated. Steel hardware into tapped steel threads require a depth of 1.5× thread diameter to support the full clamp load.
If an appropriate depth of threads […]