Fastener Hex Jam Nut-5/8"-18

Fastener Hex Jam Nut-5/8"-18

The 5/8"-18 Hex Jam Nut is a critical fastening component utilized across general concrete mixer equipment, including McNeilus, Terex, and Con-Tech models. Featuring a 5/8-inch diameter with 18 threads per inch (UNF fine thread), this low-profile nut is designed to be threaded onto a bolt alongside a standard nut to lock it securely in place. It is highly effective in high-vibration environments like mixer drums, chutes, and hydraulic mounts, preventing fasteners from backing out during operation. Its reduced height also makes it ideal for applications where space is limited and a standard-sized nut will not fit.

Key Features

• 5/8"-18 UNF fine thread pitch for precise and secure fastening
• Low-profile jam nut design allows for installation in tight clearance areas
• Acts as a secondary locking mechanism to resist vibration-induced loosening
• Compatible with standard 5/8"-18 bolts and threaded rods on mixer equipment

Fits These Mixers

McNeilus, Terex, Con-Tech. Universally compatible with McNeilus, Terex, and Con-Tech front and rear discharge mixers requiring 5/8"-18 fine thread jam nuts. Commonly used in chute pivot assemblies, linkage rods, and hydraulic mounting hardware.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.