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BaerCoil Thread Insert UNC - No4 x 40 - 3 X D

BaerCoil Thread Insert UNC - No4 x 40 - 3 X D

SKU:BAER-1-B8201-3
BaerCoil UNC No4 x 40 - 3 X D is a stainless steel thread insert designed to reinforce internal UNC threads in metal components. Built for engineers and technicians who demand durability in deman... Read more ↓
Specification
SizeNo4
Pitch40
Length3 X D
£0.53
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
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Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

BaerCoil UNC No4 x 40 - 3 X D is a stainless steel thread insert designed to reinforce internal UNC threads in metal components. Built for engineers and technicians who demand durability in demanding environments, it delivers reliable, long-lasting performance in precision assemblies.

  • Material: Austenitic chromium-nickel stainless steel (AISI 304) with a tensile strength of ≥ 1400 N/mm2.
  • Cross‑Section & Forming: Swaged, cold‑formed rhombic profile for maximum thread contact and efficient use of space inside the threaded hole.
  • Size & Installation: UNC No4 x 40, designed for 3 x D installation depth to ensure secure, permanent reinforcement.
  • Finish & Resistance: Enhanced corrosion and heat resistance compared with standard thread connections, helping parts endure challenging service conditions.
  • Performance Focus: Improved wear resistance and reduced thread abrasion, promoting longer service life and more dependable fastener retention.

This BaerCoil insert is ideal for repairing damaged or undersized threads, restoring original clamping strength and enabling repeated assembly cycles without compromising integrity. It’s well suited for mechanical, automotive, and industrial applications where reliable thread performance and extended component life matter most.

Size No4
Pitch 40
Length 3 X D

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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy

Full Range: BaerCoil Thread Inserts - UNC Type S Free Running

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You are viewing BAER-1-B8201-3. Click any other SKU to view its full details.

Product SKUSizePitchLengthPriceStock Order
BAER-1-B8200-1 No2561 X D£0.37 5 days
BAER-1-B8200-15 No2561.5 X D£0.32 5 days
BAER-1-B8200-2 No2562 X D£0.32 5 days
BAER-1-B8200-25 No2562.5 X D£0.48 5 days
BAER-1-B8200-3 No2563 X D£0.64 5 days
BAER-1-B8213-1 No3481 X D£0.32 5 days
BAER-1-B8213-15 No3481.5 X D£0.37 5 days
BAER-1-B8213-2 No3482 X D£0.37 5 days
BAER-1-B8213-3 No3483 X D£1.06 5 days
BAER-1-B8201-1 No4401 X D£0.32 5 days
BAER-1-B8201-15 No4401.5 X D£0.32 5 days
BAER-1-B8201-2 No4402 X D£0.37 5 days
BAER-1-B8201-25 No4402.5 X D£0.48 5 days
BAER-1-B8201-3 ViewingNo4403 X D£0.53 5 days
BAER-1-B8202-1 No5401 X D£0.42 5 days
BAER-1-B8202-15 No5401.5 X D£0.48 5 days
BAER-1-B8202-2 No5402 X D£0.53 5 days
BAER-1-B8202-25 No5402.5 X D£0.64 5 days
BAER-1-B8202-3 No5403 X D£1.06 5 days
BAER-1-B8203-1 No6321 X D£0.21 In Stock
BAER-1-B8203-15 No6321.5 X D£0.27 5 days
BAER-1-B8203-2 No6322 X D£0.27 5 days
BAER-1-B8203-25 No6322.5 X D£0.37 5 days
BAER-1-B8203-3 No6323 X D£0.53 5 days
BAER-1-B8204-1 No8321 X D£0.21 5 days
BAER-1-B8204-15 No8321.5 X D£0.27 In Stock
BAER-1-B8204-2 No8322 X D£0.27 5 days
BAER-1-B8204-25 No8322.5 X D£0.37 5 days
BAER-1-B8204-3 No8323 X D£0.64 5 days
BAER-1-B8205-1 No10241 X D£0.27 5 days
BAER-1-B8205-15 No10241.5 X D£0.27 5 days
BAER-1-B8205-2 No10242 X D£0.27 5 days
BAER-1-B8205-25 No10242.5 X D£0.42 5 days
BAER-1-B8205-3 No10243 X D£0.74 5 days
BAER-1-B8206-1 No12241 X D£0.32 5 days
BAER-1-B8206-15 No12241.5 X D£0.27 5 days
BAER-1-B8206-2 No12242 X D£0.37 5 days
BAER-1-B8206-25 No12242.5 X D£0.53 5 days
BAER-1-B8206-3 No12243 X D£1.06 5 days
BAER-1-B8207-1 1/4201 X D£0.21 In Stock
BAER-1-B8207-15 1/4201.5 X D£0.27 In Stock
BAER-1-B8207-2 1/4202 X D£0.32 5 days
BAER-1-B8207-25 1/4202.5 X D£0.48 5 days
BAER-1-B8207-3 1/4203 X D£0.74 In Stock
BAER-1-B8208-1 5/16181 X D£0.32 5 days
BAER-1-B8208-15 5/16181.5 X D£0.37 In Stock
BAER-1-B8208-2 5/16182 X D£0.48 5 days
BAER-1-B8208-25 5/16182.5 X D£0.58 5 days
BAER-1-B8208-3 5/16183 X D£1.06 5 days
BAER-1-B8209-1 3/8161 X D£0.48 5 days
BAER-1-B8209-15 3/8161.5 X D£0.53 5 days
BAER-1-B8209-2 3/8162 X D£0.64 5 days
BAER-1-B8209-25 3/8162.5 X D£0.85 5 days
BAER-1-B8209-3 3/8163 X D£1.59 5 days
BAER-1-B8210-1 7/16141 X D£0.64 5 days
BAER-1-B8210-15 7/16141.5 X D£0.64 In Stock
BAER-1-B8210-2 7/16142 X D£0.85 5 days
BAER-1-B8210-25 7/16142.5 X D£1.27 5 days
BAER-1-B8210-3 7/16143 X D£1.70 5 days
BAER-1-B8211-1 1/2131 X D£0.80 5 days
BAER-1-B8211-15 1/2131.5 X D£0.80 In Stock
BAER-1-B8211-2 1/2132 X D£1.17 5 days
BAER-1-B8211-25 1/2132.5 X D£1.59 5 days
BAER-1-B8211-3 1/2133 X D£2.17 5 days
BAER-1-B8212-1 9/16121 X D£1.59 5 days
BAER-1-B8212-15 9/16121.5 X D£2.12 5 days
BAER-1-B8212-2 9/16122 X D£2.65 5 days
BAER-1-B8212-25 9/16122.5 X D£3.29 5 days
BAER-1-B8212-3 9/16123 X D£3.98 5 days
BAER-1-B8214-1 5/8111 X D£1.43 5 days
BAER-1-B8214-15 5/8111.5 X D£1.96 5 days
BAER-1-B8214-2 5/8112 X D£2.39 5 days
BAER-1-B8214-25 5/8112.5 X D£3.71 5 days
BAER-1-B8214-3 5/8113 X D£4.40 5 days
BAER-1-B8215-1 3/4101 X D£1.96 5 days
BAER-1-B8215-15 3/4101.5 X D£2.81 5 days
BAER-1-B8215-2 3/4102 X D£4.08 5 days
BAER-1-B8215-25 3/4102.5 X D£4.93 5 days
BAER-1-B8215-3 3/4103 X D£5.94 5 days
BAER-1-B8218-1 7/891 X D£3.39 5 days
BAER-1-B8218-15 7/891.5 X D£4.98 5 days
BAER-1-B8218-2 7/892 X D£8.06 5 days
BAER-1-B8218-25 7/892.5 X D£8.53 5 days
BAER-1-B8218-3 7/893 X D£10.55 5 days
BAER-1-B8219-1 181 X D£7.47 5 days
BAER-1-B8219-15 181.5 X D£7.74 5 days
BAER-1-B8219-2 182 X D£10.81 5 days
BAER-1-B8219-25 182.5 X D£12.93 5 days
BAER-1-B8219-3 183 X D£14.58 5 days
BAER-1-B8320-15 1 1/871.5 X D£12.56 5 days
BAER-1-B8321-15 1 1/471.5 X D£13.20 5 days
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BAER-1-B8323-15 1 1/261.5 X D£26.61 5 days