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Description
05902013 – Ariens / Gravely Hex Bolt (BLT, HEX 7/16"-20 × 2.75, Grade 8, ZCC, NT)
The Ariens / Gravely 05902013 is a genuine OEM high-strength hex head bolt engineered for critical drivetrain and deck applications where superior clamping force and durability are required. With a 7/16"-20 fine thread and 2.75-inch length, this fastener is ideal for high-load, vibration-prone components such as deck assemblies, belts, blades, spindles, and clutch systems.
Manufactured to Grade 8 specifications, this bolt provides increased tensile strength compared to standard hardware. The ZCC (zinc corrosion-controlled) coating offers reliable resistance to rust and environmental exposure, while NT (no thread-locking patch) allows use with specified torque and locking hardware as designed by the manufacturer.
Key Details
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Part Number: 05902013
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Brand: Ariens / Gravely
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Part Type: Hex Head Bolt
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Thread Size: 7/16"-20 UNF (fine thread)
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Length: 2.75 in
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Strength Grade: Grade 8 (high strength)
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Finish / Coating: ZCC – Zinc corrosion controlled
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Thread Feature: NT (no thread-locking patch)
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OEM Status: Genuine Ariens / Gravely replacement part
Applications & Compatibility
This bolt is used in the following assemblies:
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Apex 52
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Deck, Belts, Blades, and Spindles – 52"
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Serial range: 025000 – 034999
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Arrow 32"
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Drive Belt and Clutch
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Serial range: 000101 and up
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Arrow 36"
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Drive Belt and Clutch
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Serial range: 000101 and up
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Product Highlights
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Grade 8 strength for demanding deck and clutch applications
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Fine-thread (7/16"-20) design for improved holding power under vibration
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2.75" length for proper engagement in spindle and clutch assemblies
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ZCC coating for corrosion resistance in outdoor environments
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OEM-specified hardware ensuring correct fit and safe operation
SEO-ready short description
05902013 Ariens / Gravely Hex Bolt – Genuine OEM 7/16"-20 × 2.75" Grade 8 hex bolt with ZCC corrosion-resistant finish, used in deck, spindle, belt, and clutch assemblies on Apex 52 and Arrow 32"/36" models.
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