scope:

This Standard covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this Standard are double-end threaded, headed, and slotted steel bars; fully grouted bolts and threaded bars; mechanical anchorage devices used for point anchorage applications; roof truss systems; partially grouted deformed bolts; and other frictional anchorage devices. All of these products represent various designs used for ground support systems. 

The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.