Description
11990100 – Wright Hex Bolt 5/16-18 x 2-1/2 Z5 (Genuine Wright OEM Fastener)
The Wright 11990100 Hex Bolt 5/16-18 x 2-1/2 Z5 is a genuine OEM replacement fastener designed for compatible Wright commercial stand-on and zero-turn mowers. Manufactured to Wright’s exact engineering specifications, this Grade 5 zinc-plated hex bolt provides exceptional clamping strength and secure fastening for critical mower assemblies operating under demanding commercial conditions.
Constructed from high-strength heat-treated steel with a corrosion-resistant zinc finish, the 11990100 Hex Bolt is engineered to withstand heavy vibration, repeated loading, moisture, and outdoor exposure. Its precision-machined 5/16″-18 coarse threads ensure reliable fastening while maintaining the structural integrity of the equipment.
Product Details
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Part Number: 11990100
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Brand: Wright Manufacturing
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Part Type: Hex Bolt
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Bolt Size: 5/16″-18
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Bolt Length: 2-1/2 in.
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Grade: Grade 5
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Thread Type: Coarse Thread (UNC)
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Finish: Zinc Plated (Z5)
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Material: Heat-Treated 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 replacement fastener
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Grade 5 heat-treated steel construction
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5/16″-18 coarse thread
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2-1/2-inch overall length
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Corrosion-resistant zinc plating
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High-strength clamping performance
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Designed for commercial mower applications
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Direct replacement with no modifications required
Function
The 11990100 Hex Bolt securely fastens structural and mechanical components throughout compatible Wright mowers. Its Grade 5 strength provides dependable holding power while resisting loosening caused by vibration during commercial mowing operations.
Compatible Equipment
The Wright 11990100 Hex Bolt is used on numerous Wright commercial stand-on and zero-turn mowers that specify OEM part number 11990100.
Common applications include selected:
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Wright Stander X
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Wright Stander B
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Wright Stander ZK
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Wright Sentar
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Wright ZXT
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Additional Wright equipment utilizing OEM part number 11990100
Always verify your equipment model, serial number, illustrated parts diagram, fastener size, 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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Equipment repair technicians
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Fleet maintenance departments
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Wright mower owners
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Outdoor power equipment dealers
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Professional lawn care companies
Recommended Property Size
Ideal for:
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Commercial landscapes
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Large residential properties
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Parks
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Schools
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Municipal grounds
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Sports complexes
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Professional mowing operations
Pros
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Genuine Wright OEM quality
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Grade 5 high-strength steel
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Corrosion-resistant zinc finish
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Precision-machined threads
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Excellent vibration resistance
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Factory-correct fit
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Long service life
Cons
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Compatible only with equipment requiring OEM part number 11990100
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Torque should always follow the manufacturer’s service specifications
Comparison – Wright 11990100 OEM Hex Bolt vs Aftermarket Bolts
Wright 11990100 Genuine OEM Hex Bolt
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Exact OEM dimensions and thread specifications
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Grade 5 heat-treated steel
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Premium zinc-plated corrosion protection
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Designed specifically for Wright commercial equipment
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Reliable long-term fastening performance
Aftermarket Hex Bolts
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May vary in material grade and dimensional accuracy
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Variable corrosion resistance
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Potential fitment or thread tolerance issues
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May not meet OEM strength requirements
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 Wright OEM 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, STIHL, Scag, Toro, Exmark, Ariens, Gravely, Ferris, Kawasaki, Kohler, Honda, Briggs & Stratton, Cub Cadet, and John Deere equipment.
