Description
06538600 Metric Hex Nut M8-1.25 (Genuine OEM Ariens / Gravely Part)
The 06538600 metric hex nut (M8-1.25) is a genuine OEM Ariens / Gravely fastener used extensively in steering control, engine, clutch, fuel, and exhaust assemblies across a wide range of residential and commercial equipment.
This nut features a standard metric hex design with 1.25 mm pitch threads, providing reliable clamping force for chassis, control, and powertrain-related components. The yellow zinc (YWZC) finish offers enhanced corrosion resistance while maintaining OEM appearance and durability in outdoor operating environments.
Manufactured to Ariens and Gravely factory specifications, the 06538600 nut ensures proper thread engagement, strength, and long service life in high-vibration and high-heat applications.
Key Details
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Manufacturer Part Number: 06538600
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Part Name: Nut Standard Hex (Metric)
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Brand: Ariens / Gravely
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Thread Size: M8 1.25
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Style: Metric standard hex nut
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Finish: Yellow Zinc (YWZC)
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Part Type: OEM fastening hardware
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Function: Secures steering, engine, clutch, fuel, and exhaust components
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Installation: Direct OEM replacement
Function & Applications
The 06538600 M8-1.25 hex nut is commonly used in structural, control, and powertrain mounting points, including:
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Steering control assemblies
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Engine and clutch mounting hardware
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Fuel system and exhaust system components
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Frame- and chassis-mounted brackets
The metric fine pitch ensures consistent torque retention and reliable performance in areas subject to vibration, heat, and repeated service.
Compatibility
This OEM Ariens / Gravely nut is used across a very broad range of equipment platforms, including but not limited to:
Zero-Turn Mowers
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Early ZT Series models (ZT1540, ZT1640, ZT1740, ZT1844, ZT1944, ZT2048, ZT2148, ZT2252, ZT2352)
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Steering control assemblies
Pro-Master & PM Series
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PM144, PM148, PM152, PM160 (Mechanical & Hydraulic Lift)
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PM250Z, PM260Z, PM272Z (Multiple engine configurations)
Commercial & Specialty Equipment
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Skidster 200D (Diesel models)
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Pro 300 series
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PM360 walk-behind mower
Common Assemblies
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Steering Controls
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Engine & Clutch
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Fuel & Exhaust Systems
Used across multiple serial number ranges, covering early, mid, and late production units.
Why Use Genuine OEM 06538600
Using the OEM 06538600 metric hex nut ensures:
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Correct M8-1.25 thread fitment
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Reliable clamping force on metric hardware
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Corrosion resistance with OEM yellow zinc finish
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Compatibility with factory torque specifications
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Proper fit across steering and engine-related assemblies
This nut delivers OEM-level reliability and durability, making it the correct replacement choice for Ariens and Gravely steering, engine, and control systems.
