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BaerCoil Thread Insert UNF - 1 x 12 - 2 X D
SKU:BAER-1-B8237-2
BaerCoil UNF Thread Insert is a precision fastener designed to reinforce or repair UNF threaded holes in metal assemblies. Built for engineers, machinists, and serious DIY enthusiasts, it deliver...
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£8.90
per item · pack of 5
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.
Learn more about Klarna
Learn more about Klarna
Description
BaerCoil UNF Thread Insert is a precision fastener designed to reinforce or repair UNF threaded holes in metal assemblies. Built for engineers, machinists, and serious DIY enthusiasts, it delivers durable, high-strength threads in demanding environments.
- Material: Austenitic chromium-nickel steel (AISI 304 stainless steel) with a tensile strength of at least 1400 N/mm2.
- Cross-Section & Manufacturing: Swaged in cold-form to a rhombic cross-section for improved engagement and maximum space utilization.
- Thread Size: UNF thread insert sized for 1 x 12, matching standard UNF holes.
- Length: Length equals 2 x D, engineered for strong seating and deep engagement.
- Corrosion & Heat Resistance: Superior resistance to corrosion and heat compared with typical single-screw connections.
- Wear & Surface Finish: Enhanced wear resistance and a better surface finish due to the stainless steel composition and precise geometry.
With BaerCoil UNF inserts, you gain a robust, repairable thread that stands up to repeated assembly and disassembly. The rhombic geometry concentrates load along the threaded path, reducing wear and preserving thread engagement in the host material. The 304 stainless steel construction resists corrosion and heat, enabling reliable performance in challenging environments. Ideal for repairing stripped UNF threads in housings, brackets, and components where maintaining a strong, smooth thread matters.
Part Numbers
- Protool Part Number
- BAER-1-B8237-2
- 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-B8237-2. 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 | 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 Viewing | 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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