5/8-11 Flanged Lock Yz Grd 8 Nut

5/8-11 Flanged Lock Yz Grd 8 Nut

This is a 5/8"-11 Grade 8 flanged lock nut designed for high-vibration and heavy-duty fastening applications in concrete mixers and other heavy equipment. The one-piece design incorporates a serrated flange that bites into the mating surface, preventing loosening without the need for a separate lock washer. Its Grade 8 steel construction provides superior strength for critical connections, while the yellow zinc chromate plating offers robust protection against corrosion. This nut is a necessary replacement part for ensuring the structural integrity and safety of equipment connections during routine maintenance or repair.

Key Features

• Grade 8 alloy steel construction for high-strength applications.
• 5/8"-11 coarse thread (UNC) size.
• Integrated serrated flange acts as a washer and prevents loosening.
• Yellow Zinc (YZ) plating for corrosion resistance.
• All-metal lock nut design is resistant to high temperatures.
• Designed for use with Grade 8 bolts and fasteners.

Fits These Mixers

McNeilus, Terex, Con-Tech. This is a general-purpose fastener for heavy equipment. It is a direct cross-reference for McNeilus part number 120202 and Con-Tech part number 705314, used on their respective concrete mixers. It is also suitable for various high-vibration applications on Terex mixers and other heavy machinery requiring a Grade 8 flanged lock nut.

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.