BOSS HDW01725 – 1/4″-20 Nylok Insert Nut
The Genuine BOSS HDW01725 is a standard 1/4″-20 Nylok Insert Nut (commonly called a “Nyloc” nut). It is used throughout BOSS snowplows and spreaders to secure small-scale components that are subject to constant vibration, such as electrical housings, light brackets, and hydraulic accessory mounts.
Technical Specifications
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Part Number: HDW01725
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Thread Size: 1/4″-20 (Coarse Thread)
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Nut Type: Nylon Insert Hex Lock Nut
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Finish: Yellow Zinc (YZN) – Plated for superior corrosion resistance in salt-heavy winter environments.
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Wrench Size: 7/16″
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Material: High-strength Steel
Common Applications
This specific lock nut is found in various assembly locations, including:
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Electrical Components: Securing the solenoid housing, plastic covers, or wiring harness clips where metal-to-metal contact needs to remain tight despite road vibration.
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Headlight Brackets: Part of the hardware used to mount SmartLight headlight assemblies (SL3, SL2, etc.) to the plow frame.
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SmartHitch2 Mechanisms: Used in the coupler tower latch kits and associated small linkage components.
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UTV/ATV Skid Plates: Used to fasten protective skid plates and undercarriage components on smaller BOSS plow models.
Key Features
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Vibration Resistance: The integrated nylon collar grips the bolt threads to prevent the nut from backing off, eliminating the need for lock washers.
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Corrosion Protection: Like all yellow zinc BOSS hardware, this nut is designed to resist “white rust” and salt corrosion significantly better than standard clear zinc or stainless steel fasteners.
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Reusability: While these nuts can be reused, they lose a portion of their locking ability each time they are removed. It is generally recommended to use new lock nuts during major maintenance or repairs.
