M22×65 Track Shoe Bolt & Nut: Specifications, Fitment, and Selection Guide

An M22×65 track shoe bolt is identified by a nominal 22 mm thread diameter and a stated 65 mm length; the matching nut secures the track shoe to the track chain. Those dimensions are a starting point, not proof that the fastener fits a particular excavator. Before ordering, verify the thread pitch, bolt-head profile, length measurement convention, nut style, and the machine or undercarriage part reference. At Zhonghai Jiuchuan, we recommend confirming fitment against the equipment documentation or a known sample before finalizing a bulk order.

If you are looking for more details, kindly visit our website.

This guide is for equipment manufacturers, parts distributors, repair workshops, and fleet maintenance teams sourcing replacement track shoe fasteners. It explains what the size designation does and does not tell you, how to check compatibility, and what information to provide when requesting a quotation. Since dimensions and service requirements can vary by machine and assembly, use the applicable drawing or manufacturer specification as the acceptance reference.

Key Takeaways

• M22 indicates a nominal thread diameter of 22 mm; it does not identify the thread pitch or thread tolerance.
• 65 mm is the stated bolt length, but the point from which length is measured should be confirmed on the drawing or with the supplier.
• Check the complete assembly: bolt, nut, track shoe, and track-chain pad or link interface.
• Do not select tightening torque, strength grade, or material from size alone. Confirm these requirements with the equipment specification.
• For a reliable quotation, share the machine model or part number, drawing or sample, required quantity, and delivery destination.

Understanding the M22×65 Specification

What the size tells you

The “M” designation identifies a metric thread, and “22” refers to its nominal diameter in millimeters. The “65” generally refers to the nominal bolt length, but bolt drawings and product conventions should be checked to determine the exact measurement points. For example, head styles can affect how overall dimensions are described, so do not assume that every supplier measures length in the same way.

The designation alone does not specify thread pitch, thread class, head shape, material, strength grade, coating, or nut dimensions. These details affect interchangeability and assembly performance. A fastener can have the correct nominal diameter and stated length while still being unsuitable if its pitch or head profile differs from the original part.

Parts and material options

A track shoe fastening set commonly consists of a bolt and a compatible nut, but the exact configuration depends on the undercarriage design. Buyers may encounter different bolt-head profiles and nut styles, as well as different material, heat-treatment, or surface-finish specifications. These are not interchangeable by default; confirm the required configuration using the original part, a drawing, or the equipment manufacturer’s guidance.

Where material or strength requirements are specified, ask the supplier to state the offered specification and the available supporting documentation. Avoid treating a generic description such as “heavy duty” as a measurable grade. If corrosion protection or a particular finish is required, confirm that it is appropriate for the application and compatible with the mating parts.

How to Check Fitment for Your Excavator

Match the fastener to the complete joint

Track shoe bolts clamp the shoe to the track-chain assembly, so fitment depends on more than the bolt’s nominal size. The bolt must pass through the relevant holes, engage correctly with the nut, and seat against the designed bearing surfaces. The length must also suit the assembled joint without creating an interference or engagement problem.

Start with the excavator make and model, undercarriage or track-chain part number, and the track shoe reference. If those identifiers are unavailable, provide a clear sample and measurements of the bolt and nut. Compare the replacement with the original in a clean, unloaded condition; a worn or damaged fastener may not provide a reliable dimensional reference.

Use a step-by-step verification process

1. Confirm the application: Record the equipment model, track-chain or shoe part number, and intended position if relevant.
2. Check the nominal dimensions: Verify the 22 mm nominal thread diameter and the stated 65 mm length against the drawing or sample.
3. Confirm thread details: Identify the pitch and any specified thread tolerance. Do not infer pitch from the M22 designation.
4. Compare geometry: Check head shape, bearing surface, nut profile, and any other dimensions shown on the part drawing.
5. Review the joint requirements: Confirm material or strength grade, finish, and tightening procedure from the applicable equipment documentation.
6. Approve before bulk supply: Where fitment is uncertain, request a sample or dimensional confirmation and compare it with the assembly requirements.

For an initial incoming dimensional screening, a caliper with 0.1 mm resolution can help compare measured dimensions with a drawing. This is a practical inspection suggestion, not a substitute for the required inspection method or tolerance stated by the equipment manufacturer. Record the measurement method and acceptance limits so that purchasing and quality teams work from the same criteria.

Selection Framework for Buyers

Prioritize compatibility and documented requirements

When comparing offers, review the complete specification rather than choosing by “M22×65” alone. Ask suppliers to confirm thread pitch, length convention, head and nut styles, material or grade when specified, finish, and packaging. If a drawing controls the order, identify its revision so that quotations and supplied parts refer to the same requirements.

You will get efficient and thoughtful service from Zhonghai Jiuchuan.

Do not use a generic torque figure for every M22 track shoe bolt. Tightening requirements can depend on the fastener specification, joint design, surface condition, and equipment instructions. Use the prescribed procedure for the machine or assembly, and ask the supplier to clarify product details if they affect that procedure.

Consider application conditions and replacement practice

Operating conditions influence which specification is appropriate, but they do not justify guessing at a stronger or different fastener. Consider the machine’s duty, expected exposure to moisture or abrasive material, maintenance process, and the consequences of an incorrect fit. If fasteners are being replaced as part of a larger undercarriage repair, confirm whether the maintenance instructions call for replacing related components or using a particular assembly procedure.

Common sourcing errors include ordering by diameter and length alone, overlooking thread pitch, mixing visually similar head styles, and relying on a worn sample without checking the drawing. Another avoidable error is assuming that a nut from a different source is compatible because it threads onto the bolt. Verify fit and specified requirements for the complete pair before installation.

Pricing, MOQ, and Lead Time

Price and availability depend on the confirmed specification, order quantity, packaging, and delivery destination. Minimum order quantities and production or dispatch lead times can also vary with the required configuration and current availability. Because no fixed commercial terms apply to every M22×65 order, request a quotation based on your actual requirements rather than relying on a general estimate.

To help suppliers quote accurately, include the required quantity, whether bolts and nuts are needed as matched sets, packaging or labeling instructions, destination, and requested delivery schedule. If you need a sample, state whether it is for dimensional review, trial fitment, or another approval process. Confirm any agreed inspection documents and acceptance criteria before placing the purchase order.

Evaluating a Track Shoe Bolt Supplier

A useful supplier evaluation focuses on specification control, communication, and order transparency. Ask whether the supplier can review a drawing or sample, identify any missing dimensions, and confirm the quoted configuration in writing. These steps help reduce the risk of receiving a part that matches the headline size but not the assembly.

• Can the supplier confirm thread pitch, length convention, head profile, and nut style?
• Will the quotation clearly state the agreed material, grade, finish, and packaging requirements?
• Can the supplier explain what dimensional or product information will be confirmed before shipment?
• Are MOQ, lead time, shipping terms, and sample arrangements stated clearly?
• Is there a process for resolving specification questions before production or dispatch?

At Zhonghai Jiuchuan, we can review the application details you provide and discuss the M22×65 track shoe bolt and nut configuration for your sourcing requirements. To support an efficient review, send the equipment or part reference, drawing or clear sample images, key dimensions, required quantity, and destination. If a specification is not known, flag it as unconfirmed rather than filling the gap with an assumption.

Conclusion: Confirm the Details Before Ordering

An M22×65 track shoe bolt and nut should be selected by confirming the complete fastener specification and its fit with the track shoe and track-chain assembly. The 22 mm nominal diameter and 65 mm stated length identify only part of the requirement; pitch, geometry, material or grade, finish, and the applicable tightening procedure still need verification. Use the equipment documentation where available, and request clarification when a drawing or sample leaves a detail uncertain.

Your next step is to prepare the machine or part reference, confirm the required quantity, and share the drawing or sample with your supplier for review. Zhonghai Jiuchuan welcomes B2B inquiries for specification checks and quotations for M22×65 track shoe bolt and nut requirements. Providing complete fitment information upfront makes it easier to evaluate compatibility, commercial terms, and the appropriate supply option.

Contact us to discuss your requirements of M22×65 Track Shoe Bolt & Nut. Our experienced sales team can help you identify the options that best suit your needs.