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Description
S04003-28 – SCAG 5/16"-18 x 2" Carriage Bolt (Round Head, Square Neck) (Genuine OEM Part)
The SCAG S04003-28 is a genuine OEM 5/16"-18 x 2-inch Carriage Bolt (Round Head, Square Neck) engineered to securely fasten structural components on SCAG commercial lawn equipment. The smooth round head provides a clean, low-profile appearance while the square neck locks into the mounting surface, preventing the bolt from rotating during installation or removal.
Manufactured from high-strength steel and built to SCAG's strict OEM specifications, the S04003-28 Carriage Bolt is commonly used for securing mower deck components, brackets, guards, grass catcher assemblies, and other structural hardware that requires dependable fastening and long-lasting durability in demanding commercial mowing conditions.
Product Details
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Manufacturer Part Number: S04003-28
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Brand: SCAG
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Part Type: Carriage Bolt (Round Head Square Neck)
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Thread Size: 5/16"-18 UNC
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Length: 2 Inches
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Head Style: Round Head
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Neck Type: Square Neck
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Material: High-Strength Steel
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Finish: Corrosion-Resistant Zinc Plating
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OEM Status: Genuine SCAG OEM Part
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Installation: Direct OEM Replacement
Key Features
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Genuine SCAG OEM carriage bolt
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Square neck prevents bolt rotation during tightening
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Smooth round head provides a clean finished appearance
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Heavy-duty high-strength steel construction
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Zinc-plated for corrosion resistance
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Designed for commercial mower applications
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Direct replacement with factory fit and performance
Function
The SCAG S04003-28 Carriage Bolt provides secure fastening for structural mower components while its square neck locks into the mounting hole to prevent spinning during installation. It delivers reliable clamping force and helps maintain the integrity of mower assemblies exposed to constant vibration and heavy-duty operation.
Who Is This For?
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Commercial landscapers
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Professional lawn maintenance contractors
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SCAG mower owners
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Equipment repair technicians
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Fleet maintenance departments
Recommended Property Size
Ideal for residential properties, large estates, commercial landscaping, municipalities, golf courses, sports fields, and professional turf maintenance operations using compatible SCAG equipment.
Pros
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Genuine SCAG OEM quality
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Heavy-duty steel construction
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Square neck prevents rotation during installation
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Corrosion-resistant zinc finish
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Factory-correct fit and dimensions
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Long-lasting performance in demanding commercial environments
Cons
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Designed specifically for compatible SCAG equipment
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Requires matching 5/16"-18 hardware for proper installation
Comparison – Genuine SCAG OEM vs Aftermarket
SCAG S04003-28 OEM
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Exact OEM dimensions and thread specifications
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Precision square neck for secure installation
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Commercial-grade steel construction
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Superior corrosion resistance
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Reliable long-term fastening performance
Aftermarket Alternatives
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Dimensions and tolerances may vary
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Lower-grade materials may reduce durability
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Less precise fitment
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Reduced corrosion protection and service life
Why Buy from Barry's Power Equipment?
Barry's Power Equipment supplies genuine SCAG OEM replacement parts trusted by professional landscapers and equipment owners.
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Genuine SCAG OEM parts
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Authorized SCAG dealer
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Fast nationwide shipping
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Competitive pricing
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Expert parts support
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Extensive OEM replacement parts inventory
