Fastener Flanged Locknut .38-16 G5 Zy

Fastener Flanged Locknut .38-16 G5 Zy

This is a Grade 5 serrated flange locknut, sized at 3/8"-16 UNC, and finished with yellow zinc plating for enhanced durability and corrosion resistance. The built-in flange acts as an integrated washer to distribute load, while the serrations bite into the mating surface to resist loosening under the heavy vibration common to concrete mixers and heavy machinery. This fastener is essential for general maintenance and repairs where a secure, vibration-resistant connection is required without the need for a separate lock washer.

Key Features

• Thread Size: 3/8"-16 UNC (Coarse)
• Material: Grade 5 Steel for high strength
• Finish: Zinc Yellow Plating for corrosion resistance.
• Serrated flange design prevents loosening from vibration.
• Integrated flange acts as a built-in washer

Fits These Mixers

McNeilus, Terex, Con-Tech. This is a general-purpose fastener commonly used across various heavy equipment, including McNeilus, Terex, and Con-Tech concrete mixers, for applications requiring a high-strength, vibration-resistant 3/8"-16 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.