1/2"-20 UNF Open End Wheel Nut (Oversized 25mm Hex - Yellow Zinc Finish)

Specialized imperial 1/2"-20 UNF open-end wheel nuts featuring a highly unique, oversized 25mm hex head and a premium yellow zinc plated finish. Engineered for specialized industrial, agricultural, or vintage hubs requiring a ultra-wide tool contact area, the compact 13mm length and open-ended design provide unrestricted thread clearance.

• Special Feature: Unusual oversized 25mm hex 
• Sold: Individually
• Shipping: Usually ships within 24 hours (Delivery in South Africa only)
• SKU: WN-1220-OP-YZ25

Technical Specifications:

Vehicle Fitment Guide:

⚠️ APPLICATION UNKNOWN – BUYER TO CONFIRM FITMENT AND SEAT COMPATIBILITY BEFORE PURCHASE

As this wheel nut combines a classic imperial 1/2"-20 UNF thread with a highly unconventional 25mm oversized hex outer profile and a short 13mm length, there is no standard passenger vehicle match.

Please carefully measure your stud thread pitch, wheel pocket clearance, and seating profile before ordering.

While the application is unverified, 1/2"-20 UNF imperial threads are historically or currently utilized across the following sectors (though standard applications typically use a smaller 19mm or 21mm hex):

• Classic American Muscle & Vintage Vehicles
• Agricultural Equipment & Implements
• Industrial Lift Equipment & Trailers
• Custom Engineering/Machinery Assemblies

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