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The VALUE COLLECTION L79NE0616 2B is a 3/8-16 hex lock nut with a nylon insert locking mechanism, manufactured from 18-8 stainless steel. The nylon insert collar deforms around mating threads under torque, creating prevailing torque resistance that prevents loosening from vibration and movement without requiring adhesive or secondary locking hardware. At 15/32 inches high with a 9/16-inch width across flats, this nut fits standard UNC thread fasteners and is suited for corrosion-resistant assemblies where stainless steel is specified. HVAC techs, plumbers, electricians, and mechanical contractors reach for nylon insert lock nuts when securing equipment panels, pipe supports, and equipment bases subject to vibration or thermal cycling.
This lock nut is used across residential and light commercial applications wherever a 3/8-16 UNC fastener requires reliable locking without tools. Common install scenarios include mounting HVAC equipment components, securing conduit support hardware, fastening plumbing fixture brackets, and assembling structural supports in wet or corrosive environments. The 18-8 stainless steel construction makes it appropriate for outdoor, coastal, and high-moisture service conditions where carbon steel fasteners would corrode prematurely. Right-hand thread direction is standard for most mechanical and trade applications.
Designed for use with 3/8-16 UNC right-hand thread fasteners in inch-measurement assemblies across HVAC, plumbing, electrical, and general mechanical applications.
Install using a standard 9/16-inch wrench or socket driver. Power down or de-energize any equipment before accessing fastener locations on electrical or mechanical assemblies. Nylon insert lock nuts are single-use by design and should not be reused after removal, as the insert loses clamping effectiveness once deformed. Follow applicable codes and equipment manufacturer torque guidance for the specific assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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