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BaerCoil Thread Insert UNC - 9/16 x 12 - 2.5 X D
Learn more about Klarna
Description
BaerCoil UNC thread insert (9/16-12, 2.5D) is a high-strength fastener solution designed to deliver durable, vibration-tolerant threads in metal assemblies. Built from stainless steel AISI 304, it combines corrosion resistance with impressive load-bearing capability for demanding applications.
- Material and strength: Austenitic chromium-nickel stainless steel (AISI 304) with a tensile strength of at least 1400 N/mm2 for reliable performance in tough environments.
- Profile and formation: Rhombic cross-section achieved through cold-form swaging, optimizing load distribution and maximizing space utilization in threaded joints.
- Thread compatibility: Designed for UNC standard threads (9/16-12) to match common, heavy-duty fasteners and maintain common assembly workflows.
- Length and engagement: 2.5 times the nominal diameter (2.5D) grip/engagement length for strong withdrawal resistance without compromising fit in tight spaces.
- Corrosion and heat resistance: Stainless steel core provides robust resistance to corrosion and elevated temperatures, extending service life in harsh or outdoor environments.
- Wear and surface finish: Enhanced wear resistance and improved surface finish compared with traditional single-screw connections, helping maintain thread integrity over time.
This BaerCoil insert is ideal for applications where long-term thread integrity matters: automotive housings, machinery frames, equipment enclosures, aerospace components, and any project facing vibration, repeated assembly cycles, or exposure to challenging conditions. The rhombic, cold-formed geometry ensures efficient use of space while delivering predictable performance, making it a practical upgrade over standard threaded connections. Installation benefits come from the solid stainless core and proven BaerCoil profile, supporting reliable, repeatable results across maintenance or production environments.
Part Numbers
- Protool Part Number
- BAER-1-B8212-25
- Brand
- BAER
- Category
- Wire Thread Inserts
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.
Full Range: BaerCoil Thread Inserts - UNC Type S Free Running
View full collection →You are viewing BAER-1-B8212-25. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Length | Price | Stock | Order |
|---|---|---|---|---|---|---|
| BAER-1-B8200-1 | No2 | 56 | 1 X D | £0.37 | 5 days | |
| BAER-1-B8200-15 | No2 | 56 | 1.5 X D | £0.32 | 5 days | |
| BAER-1-B8200-2 | No2 | 56 | 2 X D | £0.32 | 5 days | |
| BAER-1-B8200-25 | No2 | 56 | 2.5 X D | £0.48 | 5 days | |
| BAER-1-B8200-3 | No2 | 56 | 3 X D | £0.64 | 5 days | |
| BAER-1-B8213-1 | No3 | 48 | 1 X D | £0.32 | 5 days | |
| BAER-1-B8213-15 | No3 | 48 | 1.5 X D | £0.37 | 5 days | |
| BAER-1-B8213-2 | No3 | 48 | 2 X D | £0.37 | 5 days | |
| BAER-1-B8213-3 | No3 | 48 | 3 X D | £1.06 | 5 days | |
| BAER-1-B8201-1 | No4 | 40 | 1 X D | £0.32 | 5 days | |
| BAER-1-B8201-15 | No4 | 40 | 1.5 X D | £0.32 | 5 days | |
| BAER-1-B8201-2 | No4 | 40 | 2 X D | £0.37 | 5 days | |
| BAER-1-B8201-25 | No4 | 40 | 2.5 X D | £0.48 | 5 days | |
| BAER-1-B8201-3 | No4 | 40 | 3 X D | £0.53 | 5 days | |
| BAER-1-B8202-1 | No5 | 40 | 1 X D | £0.42 | 5 days | |
| BAER-1-B8202-15 | No5 | 40 | 1.5 X D | £0.48 | 5 days | |
| BAER-1-B8202-2 | No5 | 40 | 2 X D | £0.53 | 5 days | |
| BAER-1-B8202-25 | No5 | 40 | 2.5 X D | £0.64 | 5 days | |
| BAER-1-B8202-3 | No5 | 40 | 3 X D | £1.06 | 5 days | |
| BAER-1-B8203-1 | No6 | 32 | 1 X D | £0.21 | In Stock | |
| BAER-1-B8203-15 | No6 | 32 | 1.5 X D | £0.27 | 5 days | |
| BAER-1-B8203-2 | No6 | 32 | 2 X D | £0.27 | 5 days | |
| BAER-1-B8203-25 | No6 | 32 | 2.5 X D | £0.37 | 5 days | |
| BAER-1-B8203-3 | No6 | 32 | 3 X D | £0.53 | 5 days | |
| BAER-1-B8204-1 | No8 | 32 | 1 X D | £0.21 | 5 days | |
| BAER-1-B8204-15 | No8 | 32 | 1.5 X D | £0.27 | In Stock | |
| BAER-1-B8204-2 | No8 | 32 | 2 X D | £0.27 | 5 days | |
| BAER-1-B8204-25 | No8 | 32 | 2.5 X D | £0.37 | 5 days | |
| BAER-1-B8204-3 | No8 | 32 | 3 X D | £0.64 | 5 days | |
| BAER-1-B8205-1 | No10 | 24 | 1 X D | £0.27 | 5 days | |
| BAER-1-B8205-15 | No10 | 24 | 1.5 X D | £0.27 | 5 days | |
| BAER-1-B8205-2 | No10 | 24 | 2 X D | £0.27 | 5 days | |
| BAER-1-B8205-25 | No10 | 24 | 2.5 X D | £0.42 | 5 days | |
| BAER-1-B8205-3 | No10 | 24 | 3 X D | £0.74 | 5 days | |
| BAER-1-B8206-1 | No12 | 24 | 1 X D | £0.32 | 5 days | |
| BAER-1-B8206-15 | No12 | 24 | 1.5 X D | £0.27 | 5 days | |
| BAER-1-B8206-2 | No12 | 24 | 2 X D | £0.37 | 5 days | |
| BAER-1-B8206-25 | No12 | 24 | 2.5 X D | £0.53 | 5 days | |
| BAER-1-B8206-3 | No12 | 24 | 3 X D | £1.06 | 5 days | |
| BAER-1-B8207-1 | 1/4 | 20 | 1 X D | £0.21 | In Stock | |
| BAER-1-B8207-15 | 1/4 | 20 | 1.5 X D | £0.27 | In Stock | |
| BAER-1-B8207-2 | 1/4 | 20 | 2 X D | £0.32 | 5 days | |
| BAER-1-B8207-25 | 1/4 | 20 | 2.5 X D | £0.48 | 5 days | |
| BAER-1-B8207-3 | 1/4 | 20 | 3 X D | £0.74 | In Stock | |
| BAER-1-B8208-1 | 5/16 | 18 | 1 X D | £0.32 | 5 days | |
| BAER-1-B8208-15 | 5/16 | 18 | 1.5 X D | £0.37 | In Stock | |
| BAER-1-B8208-2 | 5/16 | 18 | 2 X D | £0.48 | 5 days | |
| BAER-1-B8208-25 | 5/16 | 18 | 2.5 X D | £0.58 | 5 days | |
| BAER-1-B8208-3 | 5/16 | 18 | 3 X D | £1.06 | 5 days | |
| BAER-1-B8209-1 | 3/8 | 16 | 1 X D | £0.48 | 5 days | |
| BAER-1-B8209-15 | 3/8 | 16 | 1.5 X D | £0.53 | 5 days | |
| BAER-1-B8209-2 | 3/8 | 16 | 2 X D | £0.64 | 5 days | |
| BAER-1-B8209-25 | 3/8 | 16 | 2.5 X D | £0.85 | 5 days | |
| BAER-1-B8209-3 | 3/8 | 16 | 3 X D | £1.59 | 5 days | |
| BAER-1-B8210-1 | 7/16 | 14 | 1 X D | £0.64 | 5 days | |
| BAER-1-B8210-15 | 7/16 | 14 | 1.5 X D | £0.64 | In Stock | |
| BAER-1-B8210-2 | 7/16 | 14 | 2 X D | £0.85 | 5 days | |
| BAER-1-B8210-25 | 7/16 | 14 | 2.5 X D | £1.27 | 5 days | |
| BAER-1-B8210-3 | 7/16 | 14 | 3 X D | £1.70 | 5 days | |
| BAER-1-B8211-1 | 1/2 | 13 | 1 X D | £0.80 | 5 days | |
| BAER-1-B8211-15 | 1/2 | 13 | 1.5 X D | £0.80 | In Stock | |
| BAER-1-B8211-2 | 1/2 | 13 | 2 X D | £1.17 | 5 days | |
| BAER-1-B8211-25 | 1/2 | 13 | 2.5 X D | £1.59 | 5 days | |
| BAER-1-B8211-3 | 1/2 | 13 | 3 X D | £2.17 | 5 days | |
| BAER-1-B8212-1 | 9/16 | 12 | 1 X D | £1.59 | 5 days | |
| BAER-1-B8212-15 | 9/16 | 12 | 1.5 X D | £2.12 | 5 days | |
| BAER-1-B8212-2 | 9/16 | 12 | 2 X D | £2.65 | 5 days | |
| BAER-1-B8212-25 Viewing | 9/16 | 12 | 2.5 X D | £3.29 | 5 days | |
| BAER-1-B8212-3 | 9/16 | 12 | 3 X D | £3.98 | 5 days | |
| BAER-1-B8214-1 | 5/8 | 11 | 1 X D | £1.43 | 5 days | |
| BAER-1-B8214-15 | 5/8 | 11 | 1.5 X D | £1.96 | 5 days | |
| BAER-1-B8214-2 | 5/8 | 11 | 2 X D | £2.39 | 5 days | |
| BAER-1-B8214-25 | 5/8 | 11 | 2.5 X D | £3.71 | 5 days | |
| BAER-1-B8214-3 | 5/8 | 11 | 3 X D | £4.40 | 5 days | |
| BAER-1-B8215-1 | 3/4 | 10 | 1 X D | £1.96 | 5 days | |
| BAER-1-B8215-15 | 3/4 | 10 | 1.5 X D | £2.81 | 5 days | |
| BAER-1-B8215-2 | 3/4 | 10 | 2 X D | £4.08 | 5 days | |
| BAER-1-B8215-25 | 3/4 | 10 | 2.5 X D | £4.93 | 5 days | |
| BAER-1-B8215-3 | 3/4 | 10 | 3 X D | £5.94 | 5 days | |
| BAER-1-B8218-1 | 7/8 | 9 | 1 X D | £3.39 | 5 days | |
| BAER-1-B8218-15 | 7/8 | 9 | 1.5 X D | £4.98 | 5 days | |
| BAER-1-B8218-2 | 7/8 | 9 | 2 X D | £8.06 | 5 days | |
| BAER-1-B8218-25 | 7/8 | 9 | 2.5 X D | £8.53 | 5 days | |
| BAER-1-B8218-3 | 7/8 | 9 | 3 X D | £10.55 | 5 days | |
| BAER-1-B8219-1 | 1 | 8 | 1 X D | £7.47 | 5 days | |
| BAER-1-B8219-15 | 1 | 8 | 1.5 X D | £7.74 | 5 days | |
| BAER-1-B8219-2 | 1 | 8 | 2 X D | £10.81 | 5 days | |
| BAER-1-B8219-25 | 1 | 8 | 2.5 X D | £12.93 | 5 days | |
| BAER-1-B8219-3 | 1 | 8 | 3 X D | £14.58 | 5 days | |
| BAER-1-B8320-15 | 1 1/8 | 7 | 1.5 X D | £12.56 | 5 days | |
| BAER-1-B8321-15 | 1 1/4 | 7 | 1.5 X D | £13.20 | 5 days | |
| BAER-1-B8322-15 | 1 3/8 | 6 | 1.5 X D | £21.20 | 5 days | |
| BAER-1-B8323-15 | 1 1/2 | 6 | 1.5 X D | £26.61 | 5 days |
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