Product types: Resin Roof Bolts

Unibar™

Unibar™ - Mechanical Anchor Bolt

The cold form thread pattern on the Unibar™ gives closer tolerance between thread and nut (no 'rattle fit') and greater tensile strength. These features combined, provide improved load retention capability, compared to conventional hot-rolled fully threaded bar.

Product types:
Z-Bar

Z-Bar

Z-Bar is a hot-rolled bar formed to give superior performance when used in conjunction with the latest resin bolting technology. The bar is designed in such a way that the nominal diameter of the bar approximates the pitch diameter of the thread, thus allowing for maximum thread strength, in relation to nominal bar diameter.

Product types:
Thread bar 500

Thread bar 500

No reduction in load capabilities as threads exceed the nominal bar diameter. Robust thread design accepts harsh conditions without affecting threadability. Increased bond strength achieved owing to large surface area of ribs. Continuous thread enables retensioning in the event of ‘scaling’, as well as cutting of the bar at any point.

Product types:
Cone Bolts

Cone Bolts - Yielding Roof Bolt

The cone bolt is a yielding tendon capable of providing effective support in areas prone to seismic events and high stress changes. Damage to tunnels normally resulting from, or associated with, rockbursts and large quasi-static rock deformations are consequently reduced.

Product types:
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