Genuine Sinotruk Nut (Track) 8216-MA-00064 – Unbreakable Fastening Power & Unmatched Durability for Howo Undercarriage Systems

Engineering Excellence Behind the 8216-MA-00064 Track Nut

The 8216-MA-00064 track nut is far more than a simple fastener – it is a precision‑engineered component that plays a vital role in the safety, alignment, and longevity of your vehicle’s undercarriage. Manufactured from a chromium‑molybdenum alloy steel (42CrMo4), it undergoes controlled quenching and tempering to achieve a tensile strength of ≥ 1040 MPa and a yield strength of ≥ 940 MPa, meeting the stringent requirements of property class 10. Its threads are formed by a precision tapping process that ensures consistent pitch diameter and flank angle, providing reliable engagement with mating track bolts.

The zinc‑nickel coating on the 8216-MA-00064 offers exceptional protection against corrosion, significantly outperforming standard zinc plating. This is especially critical in Nigeria’s coastal and high‑humidity regions, where salt‑laden air and road spray can rapidly degrade unprotected fasteners. The coating also provides a stable friction coefficient, which is essential for achieving accurate and repeatable torque‑tension relationships during assembly.

In typical Howo truck applications, this track nut is used with the corresponding track bolts to secure track pads, grouser bars, or other undercarriage components. Its 30mm across‑flats hexagon design provides ample wrenching surface, allowing for high tightening torques without rounding the corners. The bearing face is flat and perpendicular to the thread axis, ensuring even load distribution and minimizing the risk of embedding into the joint surface.

Technical Specifications – Nut (Track) 8216-MA-00064

Parameter	Specification
OEM Part Number	8216-MA-00064
Product Name	Nut (Track) – Hexagon nut, coarse thread
Brand	Sinotruk (Genuine OEM)
Thread Size	M16 x 2.0 (coarse)
Width Across Flats	24 mm
Height (Thickness)	14 mm
Material	Alloy steel (42CrMo4)
Property Class	10 (high‑strength)
Tensile Strength	≥ 1040 MPa
Yield Strength	≥ 940 MPa
Coating	Zinc‑nickel (yellow passivation)
Corrosion Resistance	≥ 720 hours salt spray (ISO 9227)
Thread Form	Tapped, ISO metric
Recommended Torque	280 – 320 Nm (oiled threads)
Application	Track pad mounting, undercarriage components
Compatible Models	Howo A7, T7, C7H, HW series; Sinotruk heavy‑duty trucks

Why the Genuine Sinotruk 8216-MA-00064 Outperforms Generic Track Nuts

Generic track nuts are often made from lower‑grade steel with inconsistent heat treatment, leading to premature thread stripping or galling under high torque. The 8216-MA-00064, with its controlled alloy composition and precise heat treatment, delivers consistent hardness and ductility, ensuring reliable thread engagement and resistance to seizing. Its zinc‑nickel coating also provides significantly better corrosion protection than plain zinc plating, which is essential for long‑term service in harsh environments.

Additionally, the precise dimensional control of the 8216-MA-00064 ensures that it meets the required proof load and thread fit specifications. Generic nuts often have excessive thread clearance or out‑of‑tolerance hexagon dimensions, which can lead to uneven loading, reduced clamp force, and increased risk of loosening. With the genuine Sinotruk 8216-MA-00064, you can be confident of a perfect match with your track bolts.

Advanced Material Science for Long‑Term Reliability

The 42CrMo4 alloy used in the 8216-MA-00064 provides excellent strength and toughness, even at low temperatures. Its fine‑grained microstructure, achieved through precise heat treatment, offers high resistance to stress‑corrosion cracking and hydrogen embrittlement – common failure modes in high‑strength fasteners. This makes the 8216-MA-00064 particularly suitable for Nigeria’s varied climate, from humid coastal regions to the dry interior.

Compatibility and Fitment

The 8216-MA-00064 is a direct replacement for the original track nut in a wide range of Sinotruk and Howo models. Its M16x2.0 coarse threads are standard for most heavy‑duty track applications. Always verify that the nut’s property class (10) matches the bolt grade (typically 10.9 or 12.9) for optimal joint performance, and use a calibrated torque wrench to tighten to the specified torque for your specific application.

Explore the full range of genuine Howo Parts available for your fleet, including track bolts, undercarriage components, and chassis hardware. The 8216-MA-00064 track nut is an essential part of that ecosystem – and with Sinotruk’s original quality, you can be confident that every critical joint will remain securely fastened.

Installation Best Practices for the 8216-MA-00064

Proper installation of the 8216-MA-00064 is essential to achieve the correct clamp load and prevent joint loosening. Always clean the bolt and nut threads of any dirt, oil, or debris before assembly. Apply a thin film of engine oil or thread lubricant to the bolt threads and the bearing face of the nut to achieve accurate torque readings. Use a torque wrench calibrated to the recommended torque for the specific bolt grade and application, and tighten the nut in a cross‑pattern if multiple fasteners are used.

Regular inspection of the 8216-MA-00064 should be part of your vehicle’s service schedule. Check for any signs of loosening, corrosion, or thread damage. If a nut is removed, it should be replaced with a new 8216-MA-00064 to ensure consistent clamp force, as the threads may have been stressed or the coating compromised during previous use.

Built for Nigeria – Secure Fastening in Demanding Environments

Nigeria’s heavy‑duty trucking and construction sectors operate under some of the most challenging conditions in the world: extreme heat, high humidity, abrasive dust, and constant vibration from unpaved roads. The 8216-MA-00064 is engineered to withstand these challenges. Its high‑strength alloy and corrosion‑resistant coating ensure that it maintains its clamping force and thread integrity, even after years of exposure to the elements.

Furthermore, the nut’s precise geometry and robust design prevent loosening due to vibration – a common issue with generic fasteners that can lead to catastrophic undercarriage failure. By choosing the genuine Sinotruk 8216-MA-00064, fleet operators can reduce the risk of unexpected breakdowns and extend the service life of critical undercarriage components.

Secure Your Undercarriage with the Genuine 8216-MA-00064 Track Nut

The 8216-MA-00064 Track Nut is a small but essential component that ensures the structural integrity of your Howo or Sinotruk truck’s undercarriage. Its superior strength, corrosion resistance, and exact OEM fitment make it the only choice for professional workshops and fleet managers. Every time you install a genuine Sinotruk 8216-MA-00064, you are guaranteeing safe and reliable operation, reducing downtime, and protecting your investment.

Don’t compromise with generic nuts that may not meet the required strength or durability standards. Insist on the genuine 8216-MA-00064 – the nut trusted by experienced mechanics and fleet operators across Nigeria. With its proven performance in heavy‑duty applications, this nut delivers the security and peace of mind you deserve.

Genuine Sinotruk 8216-MA-00064 – Engineered for excellence. Built for Africa. Trusted by professionals.

Packaging & Shipping

Every Howo part is carefully packaged and shipped to ensure it arrives in perfect condition, ready for installation. Our professional logistics process guarantees timely delivery across Nigeria.

Secure Packaging

Each Howo part is individually wrapped in protective materials and placed in reinforced cardboard boxes to prevent damage during transit.

Dedicated Transport

We use our own Sinotruk logistics fleet for reliable delivery, ensuring parts reach customers quickly and safely across all regions of Nigeria.

Quality Inspection

Before shipping, each part undergoes final quality checks and is clearly labeled with its OEM number for easy identification.

Nationwide Distribution

Our extensive distribution network covers all major cities and rural areas in Nigeria, ensuring prompt delivery to construction sites, workshops, and businesses.

Shipping Information for Nigerian Customers

• Standard Delivery: 3-5 business days to major cities (Lagos, Abuja, Port Harcourt, Kano)

• Express Delivery: 1-2 business days available for urgent orders

• Regional Coverage: We deliver to all 36 states including remote areas

• Tracking: All shipments include real-time tracking information

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