Resin Anchored Helix Bolt

The Helix Bolt is a resin anchored bolt with improved resin mixing and support capacity for resin bolting applications.

Mining screw bolts can be used in coal mining, bridge and tunnel engineering, we can provide surface heat treatment, and use hot-dip galvanizing to achieve the effect of rust prevention. The length and size can also be customized according to requirements.

Product Description


The HelixBolt has a unique head configuration designed for improved shredding of resin capsules, better centralising of the installed bolt and improved end anchoring. The augered paddle configuration improves resin mixing, reduces gloving, and minimises voids in the resin to maximise the anchoring strength of the bolt and enhance corrosion protection through centralisation of the bolt within the resin. The patented design dramatically increases the range of resin annulus into which HelixBolts can be installed offering the ability to optimise the design of resin bolting systems.

The HelixBolt is available in both 18 mm and 20 mm diameter bar depending on requirements. The proximal end of the bolt is threaded with a washer, spherical seat, nut and shear pin. The shear pin facilitates spinning prior to pre-loading. The pin shears at a predefined torque to allow the HelixBolt to be preloaded. Each unit can be provided with a collapsible load indicator to confirm correct tensioning of the unit when installed, and to assist in post auditing of the installation.

Benefits of the bolt

Increased range for resin annulus

Improved mixing of resin

Reduced likelihood of gloving

Reduction in resin voids

Improved centralisation of the bolt

Higher support capacity

Helix bolt