The Hobson galvanized Clawbolt is a type of expansion anchor commonly referred to as a through bolt. Through bolts are designed for heavy duty anchoring to concrete. Clawbolts are to be inserted into a hole drilled the same diameter as the anchor. The nut is then to be tightened causing the sleeve to expand into the sidewall of the hole creating a strong reliable fixing. Through bolts are commonly used for anchoring brackets, machinery, guard rails and HVAC components.
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