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Description
07053400 – Blade Hex Bolt .50-13 × 1.90 Grade 8 – OEM Ariens / Gravely
The 07053400 Blade Hex Bolt is a genuine OEM Ariens / Gravely Grade 8 fastener engineered specifically for securing mower blades and spindle components in high-load cutting applications. Featuring a 1/2"-13 thread and 1.90-inch length, this hardened Grade 8 bolt delivers superior tensile strength and resistance to shear forces generated during blade rotation.
Designed to meet Ariens / Gravely factory specifications, this bolt ensures proper torque retention, safety, and long-term reliability in demanding commercial and residential mowing conditions.
Key Details
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Part Number: 07053400
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Part Name: Blade Hex Bolt
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Brand: OEM Ariens / Gravely
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Thread Size: 1/2"-13
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Length: 1.90 in.
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Grade: Grade 8 (high strength)
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Application: Blade and spindle mounting
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Installation: Direct OEM replacement
Function & Application
This bolt is used to secure mower blades to spindle shafts and is critical for maintaining blade alignment and cutting performance. Grade 8 construction provides the strength required to withstand repeated impact loads and high RPM operation.
Where Used (Common Applications)
Commonly found in blade, spindle, and mower drive assemblies, including but not limited to:
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2-Wheel & 4-Wheel Tractor Decks
40", 50", 60", and 72" mower decks -
Pro Series / Fab Pro / PM-Series Decks
PM300, PM310, PM250Z, PM260Z, PM272Z -
Commercial Zero-Turn & Walk-Behind Equipment
Maintenance-free spindle assemblies
Belts, idlers, and blade systems
(Exact fitment depends on model and serial number range.)
Why Use OEM 07053400
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Correct length and thread for blade mounting
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High-strength Grade 8 construction
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Maintains factory torque and safety specs
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Designed for high-RPM blade applications
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Guaranteed Ariens / Gravely OEM fit and performance

