Product description

The 1/2-13 Jam Nut is a specialized low-profile fastener used to lock other nuts or threaded components in place on Coats tire changers. Unlike a standard nut, its thinner design allows it to be "jammed" against another fastener, creating a vibration-resistant lock that maintains critical adjustments. This is particularly important for setting the reach of the swing arm or the travel limits of the bead breaker assembly. If these settings shift during operation, the machine may not function correctly or could cause damage to the tire. Utilizing a fresh jam nut ensures that once your machine is calibrated, it stays that way through hundreds of tire changes. Its zinc-plated finish provides excellent resistance to the moisture and debris common in automotive workshops.

Product highlights

• Low-Profile Design: Fits into tight spaces where a standard hex nut would be too tall.
• Vibration Resistant: Effectively locks threaded assemblies to prevent loosening during heavy use.
• Standard 1/2-13 Thread: Matches the common heavy-duty fasteners used across the Coats equipment line.
• Zinc Plated Finish: Offers reliable protection against rust and corrosion in shop environments.

Specs

• OEM Reference: 8181113
• Dimension: 1/2-13
• Manufacturer Part Number: am8181113
• Country of Manufacture: USA

Direct replacement models

• Coats: 8181113
• Fits Models: Fits various Coats tire changers including 50 and 70 series models.

You will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Manufactured with rigorous industry standards and certified in the USA with superior quality to the OEM.