QA1 JNL3S-6PK Jam Nut Carbon Steel Left-Hand 10-32 UNF 3/8 Hex 6-Pack

The QA1 JNL3S-6PK is a six-piece kit of left-hand threaded jam nuts machined from carbon steel with a corrosion-resistant zinc chromate (CP) plating. Designed for use in suspension, steering, and chassis rod end applications where a low-profile locking nut is required, these jam nuts are ideal for securing rod ends, tie rods, and adjustable linkages against unwanted loosening.

Key Features:

• Thread Size: 10-32 UNF (Unified National Fine) left-hand thread
• Hex Size: 3/8 inch across flats for standard wrench engagement
• Material: Carbon steel with zinc chromate (CP) plating for corrosion resistance
• Thread Direction: Left-hand thread — compatible with left-hand rod ends and turnbuckle assemblies
• Quantity: Six (6) jam nuts included per pack
• Profile: Low-profile jam nut design to lock adjustable components in place without adding excess length

QA1 jam nuts are commonly used in performance racing, hot rod, and custom fabrication applications where precise adjustment and reliable lockup are critical. Left-hand thread versions are used on the left side of symmetrical suspension systems to prevent loosening due to rotation direction. Sold as a convenient 6-pack for full axle or multi-link setups.