High-Quality, Durable & Robust rebar rock bolt -
TANDEM ANCHOR ®Components. #6 (3/4') or #7 (7/8') headed rebar. expansion shell (usually D8) support nut. washer (2' or 2-1/4') for 1-3/8' or 1-1/2' drill holes. TANDEM ANCHOR ® Bolts are 'POINT ANCHOR BOLTS' because the full length of the bolt is placed under tension. Resin is inserted into the drilled hole followed by the bolt.
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