1/4-28 Hex Lock Nuts | Grade 8 Steel Zinc Yellow (600 / Pkg.)

Engineered for high-strength, vibration-prone assemblies, our Hex Lock Nuts with Nylon Inserts deliver reliable locking action while providing easy installation. Crafted from Grade 8 steel and finished in a yellow zinc coating, these nuts combine strength, durability, and corrosion resistance for heavy-duty hardware projects. The 1/4-28 thread size ensures compatibility with standard bolts and fasteners used in automotive, machinery, and industrial equipment.

• Locking action with nylon insert: the built-in nylon insert bites into the mating bolt thread to resist loosening under vibration and dynamic loads.
• Grade 8 steel construction: high tensile strength for demanding applications.
• Yellow zinc finish: corrosion resistance and a bright, recognizable appearance.
• Standard hex geometry: easy wrenching with common tools for fast and secure installation.
• Precise threads: engineered for smooth threading and reliable performance with 1/4-28 fasteners.
• Versatile applications: ideal for automotive, machinery, equipment, and general industrial use.

Optimization and compatibility note: For optimal performance, use with compatible bolts and torque values recommended for Grade 8 steel hardware. Not intended for critical aerospace or high-precision applications unless specified by engineering guidelines. Available in a durable yellow zinc finish to resist wear and corrosion in everyday environments.

Enhance your hardware kit with these reliable nylon insert hex lock nuts and enjoy a secure, vibration-resistant fit in every project.