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BaerCoil Thread Insert UNC - No4 x 40 - 2.5 X D
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Description
BaerCoil UNC thread insert No4 x 40 - 2.5 × D is a high‑strength stainless steel solution engineered to reinforce and repair threaded holes in metal assemblies. Crafted from austenitic chromium-nickel steel (AISI 304) with a tensile strength of at least 1400 N/mm2, it delivers dependable performance in demanding environments.
- Material: Austenitic chromium-nickel stainless steel (AISI 304) with minimum tensile strength ≥ 1400 N/mm2.
- Cross‑Section: Rhombic profile produced by cold‑form swaging for optimized load distribution and maximum space utilization.
- No4 x 40 size: UNC thread insert designed for standard UNC tapped holes; length adheres to the 2.5 × D guideline for strong engagement.
- Corrosion & Heat Resistance: Stainless steel construction provides superior resistance to corrosion and elevated temperatures.
- Wear & Abrasion Resistance: Enhanced wear resistance and reduced thread abrasion compared with conventional single-screw connections.
Designed for durability across a range of industrial applications, the BaerCoil UNC No4 x 40 delivers reliable, long‑lasting threads even in challenging service conditions. The rhombic, cold‑formed geometry improves thread engagement and load transfer, helping prevent thread pull‑out, while the stainless steel composition guards against corrosion and heat‑related degradation. Whether repairing damaged threads or reinforcing existing ones, this insert offers a robust fastening solution that supports maintenance efficiency and extended component life.
Part Numbers
- Protool Part Number
- BAER-1-B8201-25
- 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-B8201-25. 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 Viewing | 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 | 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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