Dorman 433-016 Hex Lock Nut with Nylon Insert Class - M16-1.50 8 10 Pack

The Dorman 433-016 is a metric hex lock nut featuring an integrated nylon insert (also known as a nylon ring or prevailing torque nut) designed to prevent bolt back-out and vibration-induced loosening. With a thread size of M16-1.50 (fine pitch), a height of 16mm, and a Class 8 strength rating, these nuts are engineered for demanding automotive, industrial, and general-purpose fastening applications.

Key Features:

• Thread Size: M16 x 1.50 (metric fine pitch)
• Nut Height: 16mm
• Strength Class: Class 8
• Style: Hex with nylon insert (nylon ring lock nut)
• Material: Steel with natural finish
• Self-Locking: Yes — nylon insert prevents loosening under vibration
• Pack Quantity: 10 nuts per pack
• Manufactured to specific thread tolerance standards for consistent fitment
• Corrosion tested via salt spray testing to ensure long-term durability
• Multipurpose design suitable for automotive, powersports, and general hardware applications

Backed by Dorman's team of professional engineers and quality control specialists, the 433-016 nylon insert lock nuts provide a reliable, reusable fastening solution. Part of Dorman's comprehensive Autograde hardware line, these metric prevailing torque nuts are a trusted replacement for OEM and aftermarket fastening needs.