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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £5.99 | 2 to 3 working days |
| Next Day | £17.95 |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 7 to 10 working days |
Product Number: 21721
Damaged or stripped M8 x 1.25 threads can render assemblies unusable, causing costly downtime in professional workshop environments. The Draper Expert Metric Thread Repair Kit 21721 addresses this directly by providing stainless steel inserts that restore damaged threads to their original size and condition in any material. The kit works by drilling out the damaged thread, tapping a new thread using the included high speed steel tap, and then installing the stainless steel insert via the insertion mandrel. The result is an assembly with a tapped hole that is stronger than the original, making this approach suitable for thread wear, corrosion, galling, seizing and rust damage. The kit contains four components: one high speed steel drill, one insertion mandrel, one high speed steel tap, and stainless steel thread inserts. All tooling is included to complete the repair without additional equipment. The kit is display packed and sized for M8 x 1.25 thread specifications. The stainless steel inserts resist further corrosion once installed, providing a durable repair that eliminates the failure modes that caused the original thread damage. This makes the kit particularly well suited to repeated-access fastening points in engine bays, gearboxes, and other assemblies subject to heat and vibration.
About PartsForMachines:PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specialising in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalogue of over 500,000 products. Standard delivery: 1-3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
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21721ins.pdf
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Standard Delivery: £5.99
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Delivery Estimate: 2 to 3 working days
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| Technical Specification | |||||
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| PRODUCT NUMBER | 03711 | 22411 | 27083 | 27113 | 27117 |
| Type | Kit | Kit | Kit | Kit | Kit |
A. The kit contains one high speed steel drill, one high speed steel tap, one insertion mandrel, and stainless steel thread inserts — all the tooling required to complete a full thread repair.
A. The Draper 21721 is designed to repair M8 x 1.25 metric threads.
A. According to the product description, the inserts restore damaged threads to their original size and condition in any material.
A. The stainless steel inserts provide a stronger assembly than the original tapped hole and eliminate ongoing thread wear, corrosion, galling, seizing and rust — making the repair more durable than simply re-cutting the existing thread.
A. We accept all major credit and debit cards, along with PayPal.
A. Standard UK mainland delivery is 3–5 working days.
A. In-stock orders placed before 14:30 Monday to Friday are usually dispatched the same day.
A. We accept returns within 30 days of purchase for items that are unused, undamaged, and in their original packaging. Returns are available only for UK-delivered orders and must include proof of purchase. Before returning an item, please contact us at [email protected] to obtain a Return Merchandise Number (RMN). You may also be asked to share images of the product and its packaging for verification. Items that do not meet these conditions will not be accepted for return. If your return is approved, we will initiate a refund to your credit card or original method of payment. A restocking fee of up to 15% of the order value may apply to each returned item.
A. Every product comes with a different guarantee and warranty. Warranty details are shown in the product's tech specs or datasheet where available.
A. Yes — WhatsApp us on 07754 288583 with any questions about specifications, suitability, or compatibility, and we'll help you choose the right product.
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