I use the designation M24*230 Excavator Bucket Pin Lock Bolt as a starting point, not as a complete fitment guarantee. “M24” normally identifies a metric thread with a nominal diameter of 24 mm, while “230” generally refers to a stated bolt length of 230 mm. Before ordering, I recommend confirming the thread pitch, usable length, head or shoulder design, locking method, material requirements, and excavator application against the original part or the equipment documentation.
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This guide explains how I verify the specification, assess compatibility, plan replacement, and prepare a reliable B2B purchase inquiry. As Zhonghai Jiuchuan, we support buyers with excavator undercarriage and attachment component sourcing, including specification confirmation and production discussions for suitable bolt assemblies. Where a machine-specific fact is not available, I recommend measurement or OEM documentation rather than assumption.
This guide is intended for excavator owners, fleet maintenance teams, machinery repair workshops, distributors, and importers who need to replace a bucket pin lock bolt. It is especially useful when a bolt has been lost, bent, corroded, worn, or removed during bucket pin service. It can also help purchasing teams compare suppliers before placing a repeat or bulk order.
The part name may be used differently by different equipment manufacturers and markets. Some buyers may describe it as a bucket locking bolt, pin retainer bolt, bucket pin lock bolt, or attachment retaining bolt. For that reason, I recommend using both the commercial name and measured technical information in every inquiry.
The “M24” portion normally indicates a metric thread with a nominal outside diameter of approximately 24 mm. The “230” portion commonly indicates a nominal overall or specified bolt length of 230 mm, but the exact reference point can vary by drawing and supplier. It may be measured from beneath the head, across a shoulder, or according to a machine manufacturer’s part standard.
The designation does not automatically identify the thread pitch, head profile, shank length, surface treatment, strength grade, nut type, or locking arrangement. For example, a pitch of 3.0 mm could be discussed only as a measurement example; it must not be assumed to be the correct pitch for every M24 bolt. I ask buyers to provide a drawing, sample, machine model, or clear measurements before confirming production.
A bucket pin lock bolt is generally used to help retain a bucket pin or related attachment component in its intended position. Its function depends on the surrounding design, including the pin groove, retainer plate, nut, washer, bracket, or locking tab. The bolt should therefore be evaluated as part of the complete retention system rather than as an isolated fastener.
A replacement bolt cannot correct a damaged pin bore, cracked retainer bracket, distorted mounting hole, or incorrect locking component. During service, I recommend inspecting the mating parts and checking whether the replacement sits correctly without forcing, cross-threading, or interfering with bucket movement.
I begin with the original bolt or the machine’s technical drawing. The basic record should include nominal thread diameter, thread pitch, total length, threaded length, unthreaded shank length, head style, head dimensions, washer requirements, nut type, and any special shoulder or groove. Photographs with a ruler can support the inquiry, but a thread gauge and caliper provide more useful information.
Equipment models can have different buckets, linkage configurations, production years, regional specifications, or previous repair modifications. A bolt that fits one attachment may be unsuitable for another attachment installed on the same excavator. I treat the machine model as useful background information, but I use measured dimensions and the original part reference for final confirmation.
Compatibility also depends on installation clearance. The bolt may need to pass through a bracket and align with a pin groove or retaining plate, so a small difference in length or shoulder geometry can affect assembly. If the original bolt is unavailable, I request images of the mounting area and the mating pin whenever possible.
Excavator attachment fasteners are exposed to vibration, impact, dirt, moisture, and changing loads. The appropriate material and strength grade should be selected according to the original specification, engineering requirement, and supplier documentation. I do not recommend choosing a replacement only because its diameter appears correct.
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Common purchasing discussions may include carbon steel or alloy steel construction, heat treatment, surface protection, and corrosion resistance. However, these descriptions do not prove a specific grade or performance level. For a controlled purchase, I ask the supplier to state the agreed material, treatment, dimensional requirements, and inspection scope in the quotation or technical confirmation.
A standard catalog fastener may not be suitable if the original part includes a special shoulder, reduced shank, nonstandard head, fine pitch, or attachment-specific locking feature. Substituting a common bolt can create incorrect seating or insufficient retention. If the part is safety-critical within the attachment design, the buyer should obtain approval from the equipment manufacturer or qualified maintenance engineer before changing the specification.
The most important decision is whether the replacement is an identical part, an approved alternative, or a newly engineered solution. If the thread pitch, head design, or locking method remains uncertain, I recommend pausing the order rather than relying on the M24*230 label alone. A supplier should be able to explain which dimensions have been confirmed and which still require buyer approval.
A frequent mistake is treating bolt length as universally measured in the same way. Another is ordering only the bolt while overlooking the nut, washer, retainer, or damaged mating pin. Buyers also sometimes provide a machine model but no photograph, drawing, sample, or dimensional record, which increases the chance of clarification delays.
I also recommend avoiding unverified claims such as “universal fit” or “direct replacement” unless the application has been specifically confirmed. A low unit price may not represent a lower total cost if the wrong part causes rework, urgent freight, installation delay, or another inspection cycle. Clear technical confirmation is usually more valuable than a fast but incomplete quotation.
Pricing depends on material, machining, heat treatment, surface finish, packaging, order quantity, and whether the part is standard or customized. Minimum order quantity and lead time can vary according to production scheduling and the availability of raw material. I recommend requesting separate pricing for samples, trial quantities, and regular production so the commercial comparison is transparent.
When evaluating a supplier, I check whether the company can review drawings, compare samples, clarify tolerances, arrange suitable packaging, and maintain consistent identification between batches. I also ask how nonconforming dimensions are handled and what information will appear on the quotation or packing documentation. These questions help distinguish a technically capable supplier from a seller that only repeats a product title.
At Zhonghai Jiuchuan, I can help organize the technical information needed for an M24*230 excavator bucket pin lock bolt inquiry. Please provide the original part number if available, excavator and bucket details, photographs, measured dimensions, required quantity, destination, and any drawing or sample instructions. We can then discuss whether the requirement is a standard configuration or needs a customized review.
For repeat buyers and distributors, I also recommend confirming packaging, labeling, inspection records, replacement-part identification, and shipment planning before production. These details support warehouse control and make future reordering more efficient. Final compatibility should remain based on the approved specification and the buyer’s equipment requirements.
The correct M24*230 Excavator Bucket Pin Lock Bolt is not determined by the size label alone. I recommend confirming the 24 mm nominal thread diameter, the 230 mm stated length, thread pitch, head and shank details, locking arrangement, material requirements, and attachment compatibility before purchase. This process reduces the risk of receiving a bolt that appears similar but cannot be installed or safely retained.
Your next step is to prepare the original part number or measurements, add clear photos of the installation location, and send the required quantity and delivery information to Zhonghai Jiuchuan. We can review the available details, identify the remaining technical questions, and prepare a B2B quotation based on an agreed specification rather than an ambiguous product name.
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