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The WILLIAMS COMFORT PRODUCTS 13577 is a replacement knurl nut designed for use with 36-inch pipe wrenches. The knurl nut is a small but critical component that controls the adjustment of the wrench jaw, allowing the tool to grip pipe and fittings securely during tightening or loosening operations. This part restores worn or damaged wrenches to proper working condition and is sold as an individual unit. Plumbers, pipefitters, and mechanical contractors who rely on large-format pipe wrenches for heavy-duty installations will find this replacement useful for extending tool service life rather than replacing the entire wrench.
This knurl nut fits 36-inch pipe wrenches and is intended for trade professionals working on large-diameter pipe installations, industrial piping systems, or commercial plumbing applications where oversized wrenches are standard equipment. It is a direct replacement component suited for maintenance and repair of the wrench itself rather than the piping system.
Designed as a replacement knurl nut for 36-inch pipe wrenches. Verify fitment with your specific wrench model before installation.
Installation of this knurl nut should be performed by a qualified plumber or pipefitter familiar with pipe wrench assembly. Ensure the wrench is not under load and the jaw is fully disengaged before disassembling the adjustment mechanism. Use appropriate hand tools to remove the old nut and seat the replacement securely. Inspect the heel jaw and spring for wear while the wrench is disassembled.
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