Description
11990089 – Wright 1/2″-20 x 3.5″ Zinc Hex Head Bolt (Genuine Wright OEM Fastener)
The Wright 11990089 Bolt is a genuine OEM 1/2″-20 x 3.5-inch zinc-plated hex head bolt engineered for use on compatible Wright Stander® commercial mowers and other Wright equipment requiring this exact fastener. Manufactured to Wright’s factory specifications, this high-strength bolt provides secure fastening for critical structural and mechanical assemblies while maintaining reliable performance in demanding commercial mowing environments.
Constructed from premium-grade hardened steel with a corrosion-resistant zinc finish, the 11990089 Hex Head Bolt is designed to resist vibration, heavy loads, and outdoor exposure. Its fine-thread (1/2″-20 UNF) design provides increased clamping force and precise torque retention, making it ideal for high-stress mower applications.
Product Details
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Part Number: 11990089
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Brand: Wright Manufacturing
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Part Type: Hex Head Bolt
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Bolt Size: 1/2″-20 UNF
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Length: 3.5 Inches
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Thread Type: Fine Thread (UNF)
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Head Style: Hex Head
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Finish: Zinc-Plated
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Material: Heat-Treated High-Strength Steel
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Installation: Direct OEM Replacement
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OEM Status: Genuine Wright OEM Part
Key Features
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Genuine Wright OEM fastener
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1/2″-20 UNF fine-thread design
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3.5-inch overall length
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Heavy-duty heat-treated steel construction
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Corrosion-resistant zinc plating
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Excellent vibration resistance
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High clamping strength
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Direct replacement with no modifications required
Function
The 11990089 Hex Head Bolt securely fastens critical mower components while maintaining proper clamping force under heavy vibration and continuous commercial operation. Its fine-thread design offers improved holding power and precise torque control compared to coarse-thread fasteners.
Compatible Equipment
The Wright 11990089 Bolt fits selected Wright Stander®, Stander X®, Stander B®, Sport®, and other Wright commercial mower models utilizing OEM part number 11990089.
Always verify your mower model, serial number, illustrated parts diagram, bolt dimensions, and original OEM part number before ordering to ensure proper compatibility.
Who Is This For?
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Commercial landscapers
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Lawn care professionals
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Equipment repair technicians
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Fleet maintenance departments
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Wright mower owners
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Outdoor power equipment service centers
Recommended Property Size
Ideal for:
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Residential estates
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Commercial properties
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Parks
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Schools
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Golf courses
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Municipal grounds
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Large acreage maintenance
Pros
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Genuine Wright OEM quality
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High-strength hardened steel
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Corrosion-resistant zinc finish
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Fine-thread design for superior clamping force
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Excellent vibration resistance
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Precision factory fit
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Long service life
Cons
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Compatible only with applications requiring a 1/2″-20 x 3.5″ bolt
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Always tighten to the manufacturer’s specified torque and inspect mating hardware during installation
Comparison – Wright 11990089 OEM Bolt vs Standard Hardware Store Bolts
Wright 11990089 Genuine OEM Bolt
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Exact OEM dimensions and thread pitch
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Heat-treated high-strength steel
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Durable zinc-plated finish
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Engineered for commercial mower applications
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Reliable long-term performance
Generic Replacement Bolts
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May vary in strength grade and thread accuracy
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Inconsistent corrosion protection
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Potential fitment and torque issues
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Reduced durability in high-vibration environments
Why Buy from Barry’s Power Equipment?
Barry’s Power Equipment supplies genuine Wright OEM replacement parts trusted by commercial landscapers and outdoor power equipment professionals.
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Genuine OEM Wright replacement parts
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Fast nationwide shipping
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Competitive pricing
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Expert technical support
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Extensive inventory for Wright, SCAG, Toro, Exmark, Ferris, Ariens, Gravely, Kawasaki, Kohler, Honda, Briggs & Stratton, STIHL, Cub Cadet, and John Deere equipment.
