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BaerCoil Thread Insert UNF - No3 x 56 - 3 X D
SKU:BAER-1-B8288-3
BaerCoil UNF Thread Insert No3 x 56 (3xD) is a high-strength stainless steel solution designed to repair and reinforce UNF threaded holes. Made from austenitic chromium-nickel steel (AISI 304) wi...
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£1.75
per item · pack of 10
Prices shown ex. VAT
5 days estimated lead time
— subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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Learn more about Klarna
Description
BaerCoil UNF Thread Insert No3 x 56 (3xD) is a high-strength stainless steel solution designed to repair and reinforce UNF threaded holes. Made from austenitic chromium-nickel steel (AISI 304) with a tensile strength of at least 1400 N/mm2, it delivers reliable, durable performance in demanding environments.
- Material: AISI 304 stainless steel (austenitic chromium-nickel) with tensile strength ≥ 1400 N/mm² for corrosion resistance and long life.
- Cross-section: Cold-formed rhombic profile (swaged) to maximize thread engagement and space efficiency in tight cavities.
- Thread type: UNF internal thread insert sized No. 3 x 56; length configured as 3xD for strong, secure grip.
- Manufacturing approach: Precision swaging creates a robust insert that resists wear and maintains surface finish over repeated cycles.
- Performance benefits: Superior wear resistance, reduced thread abrasion, enhanced corrosion and heat resistance compared with standard screw connections.
BaerCoil inserts are ideal for repairing damaged or undersized threads, enabling reusable, high-integrity fastenings in a variety of assemblies. The rhombic, cold-formed design minimizes insert protrusion while delivering strong pull-out resistance, making it a practical choice for aerospace, automotive, machinery, and equipment maintenance tasks where reliability matters.
Part Numbers
- Protool Part Number
- BAER-1-B8288-3
- Brand
- BAER
- Category
- Wire Thread Inserts
No downloads are attached to this product yet.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
Ask our technical team about this tool
Full Range: BaerCoil Thread Inserts - UNF Type S Free Running
View full collection →You are viewing BAER-1-B8288-3. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Length | Price | Stock | Order |
|---|---|---|---|---|---|---|
| BAER-1-B8287-1 | No2 | 64 | 1 X D | £1.27 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8287-15 | No2 | 64 | 1.5 X D | £1.38 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8287-2 | No2 | 64 | 2 X D | £1.43 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8287-25 | No2 | 64 | 2.5 X D | £3.13 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8287-3 | No2 | 64 | 3 X D | £3.50 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8288-1 | No3 | 56 | 1 X D | £0.42 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8288-15 | No3 | 56 | 1.5 X D | £0.48 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8288-2 | No3 | 56 | 2 X D | £0.48 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8288-3 Viewing | No3 | 56 | 3 X D | £1.75 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8290-1 | No4 | 48 | 1 X D | £0.37 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8290-15 | No4 | 48 | 1.5 X D | £0.42 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8290-2 | No4 | 48 | 2 X D | £0.42 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8290-25 | No4 | 48 | 2.5 X D | £0.53 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8290-3 | No4 | 48 | 3 X D | £1.17 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8289-1 | No5 | 44 | 1 X D | £0.74 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8289-15 | No5 | 44 | 1.5 X D | £0.42 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8289-2 | No5 | 44 | 2 X D | £1.91 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8289-25 | No5 | 44 | 2.5 X D | £3.13 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8289-3 | No5 | 44 | 3 X D | £3.50 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8291-1 | No6 | 40 | 1 X D | £0.37 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8291-15 | No6 | 40 | 1.5 X D | £0.37 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8291-2 | No6 | 40 | 2 X D | £0.37 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8291-25 | No6 | 40 | 2.5 X D | £0.48 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8291-3 | No6 | 40 | 3 X D | £0.74 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8292-1 | No8 | 36 | 1 X D | £0.37 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8292-15 | No8 | 36 | 1.5 X D | £0.37 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8292-2 | No8 | 36 | 2 X D | £0.37 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8292-25 | No8 | 36 | 2.5 X D | £0.48 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8292-3 | No8 | 36 | 3 X D | £1.22 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8293-1 | No10 | 32 | 1 X D | £0.27 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8293-15 | No10 | 32 | 1.5 X D | £0.27 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8293-2 | No10 | 32 | 2 X D | £0.32 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8293-25 | No10 | 32 | 2.5 X D | £0.37 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8293-3 | No10 | 32 | 3 X D | £0.58 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8225-1 | 1/4 | 28 | 1 X D | £0.32 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8225-15 | 1/4 | 28 | 1.5 X D | £0.27 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8225-2 | 1/4 | 28 | 2 X D | £0.32 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8225-25 | 1/4 | 28 | 2.5 X D | £0.53 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8225-3 | 1/4 | 28 | 3 X D | £0.74 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8226-1 | 5/16 | 24 | 1 X D | £0.32 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8226-15 | 5/16 | 24 | 1.5 X D | £0.37 per item · pack of 10 | In Stock | Sold in packs of 10 |
| BAER-1-B8226-2 | 5/16 | 24 | 2 X D | £0.48 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8226-25 | 5/16 | 24 | 2.5 X D | £0.64 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8226-3 | 5/16 | 24 | 3 X D | £0.85 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8227-1 | 3/8 | 24 | 1 X D | £0.48 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8227-15 | 3/8 | 24 | 1.5 X D | £0.53 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8227-2 | 3/8 | 24 | 2 X D | £0.64 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8227-25 | 3/8 | 24 | 2.5 X D | £0.80 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8227-3 | 3/8 | 24 | 3 X D | £1.59 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8228-1 | 7/16 | 20 | 1 X D | £0.53 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8228-15 | 7/16 | 20 | 1.5 X D | £0.64 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8228-2 | 7/16 | 20 | 2 X D | £0.80 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8228-25 | 7/16 | 20 | 2.5 X D | £1.01 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8228-3 | 7/16 | 20 | 3 X D | £1.75 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8229-1 | 1/2 | 20 | 1 X D | £0.58 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8229-15 | 1/2 | 20 | 1.5 X D | £0.69 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8229-2 | 1/2 | 20 | 2 X D | £0.80 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8229-25 | 1/2 | 20 | 2.5 X D | £1.17 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8229-3 | 1/2 | 20 | 3 X D | £1.80 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8230-1 | 9/16 | 18 | 1 X D | £1.38 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8230-15 | 9/16 | 18 | 1.5 X D | £1.43 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8230-2 | 9/16 | 18 | 2 X D | £1.91 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8230-25 | 9/16 | 18 | 2.5 X D | £2.33 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8230-3 | 9/16 | 18 | 3 X D | £3.60 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8231-1 | 5/8 | 18 | 1 X D | £1.54 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8231-15 | 5/8 | 18 | 1.5 X D | £1.64 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8231-2 | 5/8 | 18 | 2 X D | £2.17 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8231-25 | 5/8 | 18 | 2.5 X D | £2.60 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8231-3 | 5/8 | 18 | 3 X D | £4.03 per item · pack of 10 | 5 days | Sold in packs of 10 |
| BAER-1-B8233-1 | 3/4 | 16 | 1 X D | £2.17 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8233-15 | 3/4 | 16 | 1.5 X D | £3.02 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8233-2 | 3/4 | 16 | 2 X D | £3.66 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8233-25 | 3/4 | 16 | 2.5 X D | £4.40 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8233-3 | 3/4 | 16 | 3 X D | £6.04 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8235-1 | 7/8 | 14 | 1 X D | £3.55 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8235-15 | 7/8 | 14 | 1.5 X D | £4.35 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8235-2 | 7/8 | 14 | 2 X D | £7.47 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8235-25 | 7/8 | 14 | 2.5 X D | £8.00 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8235-3 | 7/8 | 14 | 3 X D | £11.18 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8237-1 | 1 | 12 | 1 X D | £5.51 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8237-15 | 1 | 12 | 1.5 X D | £6.52 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8237-2 | 1 | 12 | 2 X D | £8.90 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8237-25 | 1 | 12 | 2.5 X D | £11.82 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8237-3 | 1 | 12 | 3 X D | £12.88 per item · pack of 5 | 5 days | Sold in packs of 5 |
| BAER-1-B8238-15 | 1 1/8 | 12 | 1.5 X D | £18.66 | 5 days | |
| BAER-1-B8239-15 | 1 1/4 | 12 | 1.5 X D | £18.92 | 5 days | |
| BAER-1-B8240-15 | 1 3/8 | 12 | 1.5 X D | £45.90 | 5 days | |
| BAER-1-B8236-15 | 1 1/2 | 12 | 1.5 X D | £47.59 | 5 days |
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