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Description
12990052 – Left-Hand Jam Nut 5/16-24 Z
The 12990052 LH Jam Nut is a 5/16-24 left-hand thread locking fastener designed for applications where standard right-hand threads are not suitable, such as rotating shafts or assemblies that would otherwise loosen during operation. The jam nut profile provides secure locking in limited-clearance applications while maintaining proper clamping force.
Finished with a zinc (Z) coating, the 12990052 nut offers corrosion resistance for outdoor and equipment environments. Manufactured to standard fastener specifications, this left-hand jam nut ensures correct thread engagement and dependable retention in lawn and garden equipment, commercial mowing equipment, and mechanical assemblies.
Product Details
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Part Number: 12990052
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Part Name: Jam Nut, Left-Hand (LH)
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Thread Size: 5/16-24
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Thread Type: Unified Fine (UNF), Left-Hand
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Finish: Zinc-plated (Z)
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Part Type: Locking fastener
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Function: Prevents loosening on left-hand threaded components
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Condition: New
Applications
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Mower blade and spindle-related assemblies
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Rotating shafts requiring left-hand threads
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Lawn and garden equipment
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Commercial and industrial machinery
The 12990052 Left-Hand Jam Nut 5/16-24 Z provides secure fastening, corrosion resistance, and proper fitment for specialized left-hand threaded applications, making it a reliable replacement fastener for demanding equipment use.
