

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The WILLIAMS COMFORT PRODUCTS 13578 is a replacement knurl nut designed for use with 48-inch pipe wrenches. This small but critical hardware component secures the adjustable jaw mechanism on the wrench, maintaining proper tension and alignment during heavy-duty pipe work. When the original knurl nut wears, strips, or is lost, the adjustable function of the wrench is compromised. This direct replacement restores full wrench functionality. It is intended for plumbers, pipefitters, and mechanical contractors who rely on large-format pipe wrenches for daily service work.
This knurl nut is specifically sized for 48-inch pipe wrenches and is sold individually. It is appropriate for use in commercial plumbing, industrial piping, and mechanical contracting environments where large-diameter pipe wrenches are standard equipment. The part is a direct OEM-style replacement, making it a practical solution for tool repair rather than full wrench replacement.
Designed as a replacement knurl nut for 48-inch pipe wrenches. Confirm fitment against your existing wrench model before installation.
Installation is typically performed by plumbers or pipefitters as part of routine tool maintenance. Before replacing the knurl nut, ensure the wrench is not under load and the jaw is fully relaxed. Hand tools are generally sufficient for removal and installation of this component. Inspect the heel jaw and spring for wear while the wrench is disassembled.
Thanks for subscribing!
This email has been registered!