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. A l l 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.