Uploaded July 2026 | Updated September 2026, 2 weeks ago

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The Spiral Friction Bolt™ is designed to deliver higher performance than standard 47 mm friction bolts in applications that require increased load capacity without the need for solid resin bolts.

Its unique overlapping shell design generates greater radial pressure against the rock along the full bolt length, providing improved frictional resistance and higher overall strength. With approximately 18% more material than a standard friction bolt, the Spiral Friction Bolt™ offers enhanced torsional performance, up to 40% greater frictional resistance, and an ultimate strength of up to 22 tonnes.

Available in galvanized or black finish, standard lengths are 2.4 m and 3.0 m, with custom lengths available upon request.

Learn more:
https://www.mining.sandvik/en/products/ground-support/bolts-and-cables/

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