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BaerCoil Thread Insert UNF - No4 x 48 - 2.5 X D

BaerCoil Thread Insert UNF - No4 x 48 - 2.5 X D

SKU:BAER-1-B8290-25
BaerCoil UNF Thread Insert No4 x 48 (2.5 x D) in stainless steel AISI 304 provides a high-strength, wear-resistant solution for repairing and reinforcing threaded joints in demanding applications... Read more ↓
Specification
SizeNo4
Pitch48
Length2.5 X D
£0.53
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

BaerCoil UNF Thread Insert No4 x 48 (2.5 x D) in stainless steel AISI 304 provides a high-strength, wear-resistant solution for repairing and reinforcing threaded joints in demanding applications.

  • Material: AISI 304 stainless steel (austenitic chromium-nickel) with a tensile strength of at least 1400 N/mm2 for superior durability and corrosion resistance.
  • Cross‑section: Rhombic profile achieved by cold-form swaging, delivering efficient load transfer and maximum use of thread engagement.
  • Size and format: UNF thread insert designed for No4 x 48 applications, with a grip length of 2.5 x D to suit typical thin-walled to moderately thick substrates.
  • Performance advantages: Enhanced wear resistance, reduced thread abrasion, smoother surface finish, and improved corrosion and heat resistance versus standard single-screw connections.
  • Manufacturing method: Cold-form swaging produces precise geometry and consistent performance across inserts.

This BaerCoil insert is ideal for restoring damaged threads, extending the service life of assemblies, and delivering reliable, vibration-resistant engagement in high-stress environments. The stainless-steel construction and rhombic cross-section help distribute loads evenly, making it well-suited for automotive components, machinery housings, and equipment that demand durable, long-lasting threaded connections.

Size No4
Pitch 48
Length 2.5 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.

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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.
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first place we look
honest about stock and prices are competitive.
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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
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★★★★★
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 - UNF Type S Free Running

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You are viewing BAER-1-B8290-25. Click any other SKU to view its full details.

Product SKUSizePitchLengthPriceStock Order
BAER-1-B8287-1 No2641 X D£1.27 5 days
BAER-1-B8287-15 No2641.5 X D£1.38 5 days
BAER-1-B8287-2 No2642 X D£1.43 5 days
BAER-1-B8287-25 No2642.5 X D£3.13 5 days
BAER-1-B8287-3 No2643 X D£3.50 5 days
BAER-1-B8288-1 No3561 X D£0.42 5 days
BAER-1-B8288-15 No3561.5 X D£0.48 5 days
BAER-1-B8288-2 No3562 X D£0.48 5 days
BAER-1-B8288-3 No3563 X D£1.75 5 days
BAER-1-B8290-1 No4481 X D£0.37 5 days
BAER-1-B8290-15 No4481.5 X D£0.42 5 days
BAER-1-B8290-2 No4482 X D£0.42 5 days
BAER-1-B8290-25 ViewingNo4482.5 X D£0.53 5 days
BAER-1-B8290-3 No4483 X D£1.17 5 days
BAER-1-B8289-1 No5441 X D£0.74 5 days
BAER-1-B8289-15 No5441.5 X D£0.42 5 days
BAER-1-B8289-2 No5442 X D£1.91 5 days
BAER-1-B8289-25 No5442.5 X D£3.13 5 days
BAER-1-B8289-3 No5443 X D£3.50 5 days
BAER-1-B8291-1 No6401 X D£0.37 5 days
BAER-1-B8291-15 No6401.5 X D£0.37 5 days
BAER-1-B8291-2 No6402 X D£0.37 5 days
BAER-1-B8291-25 No6402.5 X D£0.48 5 days
BAER-1-B8291-3 No6403 X D£0.74 5 days
BAER-1-B8292-1 No8361 X D£0.37 5 days
BAER-1-B8292-15 No8361.5 X D£0.37 5 days
BAER-1-B8292-2 No8362 X D£0.37 5 days
BAER-1-B8292-25 No8362.5 X D£0.48 5 days
BAER-1-B8292-3 No8363 X D£1.22 5 days
BAER-1-B8293-1 No10321 X D£0.27 5 days
BAER-1-B8293-15 No10321.5 X D£0.27 5 days
BAER-1-B8293-2 No10322 X D£0.32 5 days
BAER-1-B8293-25 No10322.5 X D£0.37 5 days
BAER-1-B8293-3 No10323 X D£0.58 5 days
BAER-1-B8225-1 1/4281 X D£0.32 5 days
BAER-1-B8225-15 1/4281.5 X D£0.27 5 days
BAER-1-B8225-2 1/4282 X D£0.32 5 days
BAER-1-B8225-25 1/4282.5 X D£0.53 5 days
BAER-1-B8225-3 1/4283 X D£0.74 5 days
BAER-1-B8226-1 5/16241 X D£0.32 5 days
BAER-1-B8226-15 5/16241.5 X D£0.37 In Stock
BAER-1-B8226-2 5/16242 X D£0.48 5 days
BAER-1-B8226-25 5/16242.5 X D£0.64 5 days
BAER-1-B8226-3 5/16243 X D£0.85 5 days
BAER-1-B8227-1 3/8241 X D£0.48 5 days
BAER-1-B8227-15 3/8241.5 X D£0.53 5 days
BAER-1-B8227-2 3/8242 X D£0.64 5 days
BAER-1-B8227-25 3/8242.5 X D£0.80 5 days
BAER-1-B8227-3 3/8243 X D£1.59 5 days
BAER-1-B8228-1 7/16201 X D£0.53 5 days
BAER-1-B8228-15 7/16201.5 X D£0.64 5 days
BAER-1-B8228-2 7/16202 X D£0.80 5 days
BAER-1-B8228-25 7/16202.5 X D£1.01 5 days
BAER-1-B8228-3 7/16203 X D£1.75 5 days
BAER-1-B8229-1 1/2201 X D£0.58 5 days
BAER-1-B8229-15 1/2201.5 X D£0.69 5 days
BAER-1-B8229-2 1/2202 X D£0.80 5 days
BAER-1-B8229-25 1/2202.5 X D£1.17 5 days
BAER-1-B8229-3 1/2203 X D£1.80 5 days
BAER-1-B8230-1 9/16181 X D£1.38 5 days
BAER-1-B8230-15 9/16181.5 X D£1.43 5 days
BAER-1-B8230-2 9/16182 X D£1.91 5 days
BAER-1-B8230-25 9/16182.5 X D£2.33 5 days
BAER-1-B8230-3 9/16183 X D£3.60 5 days
BAER-1-B8231-1 5/8181 X D£1.54 5 days
BAER-1-B8231-15 5/8181.5 X D£1.64 5 days
BAER-1-B8231-2 5/8182 X D£2.17 5 days
BAER-1-B8231-25 5/8182.5 X D£2.60 5 days
BAER-1-B8231-3 5/8183 X D£4.03 5 days
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BAER-1-B8233-15 3/4161.5 X D£3.02 5 days
BAER-1-B8233-2 3/4162 X D£3.66 5 days
BAER-1-B8233-25 3/4162.5 X D£4.40 5 days
BAER-1-B8233-3 3/4163 X D£6.04 5 days
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BAER-1-B8235-15 7/8141.5 X D£4.35 5 days
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BAER-1-B8237-15 1121.5 X D£6.52 5 days
BAER-1-B8237-2 1122 X D£8.90 5 days
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BAER-1-B8237-3 1123 X D£12.88 5 days
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