An M24×230 excavator bucket pin lock bolt is identified by a nominal thread diameter of 24 mm and a stated length of 230 mm, but those dimensions alone do not confirm fitment. Before ordering a replacement, compare the removed bolt with the equipment parts information and check thread pitch, length measurement method, head style, locking arrangement, and the available clearance around the joint. A mismatch can prevent correct assembly or compromise how the bucket pin is retained. At Zhonghai Jiuchuan, we recommend confirming the machine and part details before requesting a quotation.
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This guide is for parts distributors, equipment maintenance teams, repair workshops, and procurement professionals sourcing bucket pin lock bolts. It is especially useful when a removed fastener is damaged, missing, or difficult to identify by appearance alone. The information can help structure a fitment check, but it is not a substitute for the machine manufacturer’s parts catalog or service instructions. If the original specification is unclear, confirm it with the equipment supplier or a qualified technician before installation.
In metric fastener naming, M24 refers to a thread with a nominal diameter of 24 mm. The “230” commonly denotes a length of 230 mm, but suppliers and drawings may define bolt length differently depending on the head and product design. For example, a drawing may measure from a particular surface rather than describing the overall length. Compare the original fastener with a dimensioned drawing whenever possible, and confirm the measurement reference when ordering.
The M24 designation does not tell you the thread pitch. A standard coarse M24 metric thread commonly has a pitch of 3.0 mm, but a replacement should not be selected on that basis alone; verify the pitch on the original part or in the applicable drawing. Bolt strength grade, head configuration, nut or locking hardware, and any specified coating must also match the application requirements. Do not infer a grade or torque value from the bolt’s size or appearance.
Start with the excavator make, model, serial number or product identification number, and the bucket or linkage configuration. A machine family may include different attachment arrangements, so a model name alone may not identify the exact fastener. Check the parts diagram or service documentation for the bucket pin retention assembly and its associated hardware. If the bolt was replaced previously, verify that the installed part is the correct reference rather than assuming it represents the original specification.
If the old bolt is available, record its thread diameter, pitch, usable thread length, overall or specified length, head shape, and any shoulder or unthreaded section. Inspect the mating nut, washer, retainer, and surrounding components for wear, deformation, damaged threads, or signs of movement. Confirm that the bolt can be installed without interference and that the retaining arrangement engages as intended. A fastener that starts into a thread is not necessarily the correct fastener for the joint.
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| Fitment item | What to confirm | Why it matters |
|---|---|---|
| Machine identification | Make, model, serial number, attachment configuration | Helps distinguish parts used in different assemblies |
| Thread | Nominal diameter, pitch, and thread condition | Prevents mismatched or damaged engagement |
| Length and form | Measurement reference, head style, shoulder, threaded portion | Supports correct seating and clearance |
| Retention hardware | Nut, washer, retainer, and specified locking method | Ensures the complete fastening arrangement is considered |
| Material and finish | Required grade or material specification and coating | Aligns the replacement with application requirements |
Stop if the replacement will not engage smoothly, if the threads are damaged, or if the fastening arrangement differs from the parts information. Forcing a bolt into an incompatible thread can damage the mating component and make later repairs more difficult. If the original bolt is broken or absent, avoid estimating its grade or critical dimensions by eye. Obtain the correct specification before returning the machine to service.
The price of an M24×230 bucket pin lock bolt can depend on its exact drawing, material or grade requirements, surface treatment, order quantity, packaging, and shipping destination. Minimum order quantity and lead time are supplier- and order-specific, so they should be confirmed in a written quotation rather than assumed from the size designation. If you are sourcing for stock, ask whether the quoted part matches a documented reference and whether associated locking hardware is included. For repeat orders, retaining the approved drawing and part identification can make future procurement more consistent.
Ask a prospective supplier whether they can review the drawing or sample and confirm which dimensions they have used for the quotation. Request clear identification of the thread pitch, length reference, head configuration, material or grade specification, finish, and included components. Clarify packaging, order quantity, production or dispatch timing, and what inspection or documentation is available for the specific order. Do not treat a general product description as proof that a fastener fits a particular machine.
At Zhonghai Jiuchuan, we can review the information you provide and discuss the product requirements for an M24×230 excavator bucket pin lock bolt. Send the machine make and model, serial or parts reference if available, a dimensioned drawing or clear photos, and the required quantity. We can then assess the stated specifications and respond with product and quotation details for your review. Final fitment should be confirmed against the equipment documentation before installation.
An M24×230 designation provides a useful starting point—24 mm nominal thread diameter and a stated 230 mm length—but it is not a complete fitment specification. Confirm the thread pitch, length reference, bolt form, grade, locking hardware, and machine configuration against reliable parts information before placing an order. During replacement, follow the equipment manufacturer’s safety and installation instructions, including its torque and retention requirements. To request a quotation from Zhonghai Jiuchuan, share your equipment details, drawing or measurements, photos, and quantity so we can review the requirements with you.
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