Please log in here to access all benefits, including promotional discounts and faster checkouts.

BaerCoil Thread Insert Metric - M12 x 1.75 - 3 X D

BaerCoil Thread Insert Metric - M12 x 1.75 - 3 X D

SKU:BAER-1-B7221-3
BaerCoil Metric Thread Insert for M12 x 1.75 is a precision repair solution designed to reinforce and extend the life of damaged threads in metal components. Built for engineers, machinists, and ... Read more ↓
Specifications at a glance
SizeM12
Pitch1.75
Length3 X D
View all specifications ↓
£1.06
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
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

BaerCoil Metric Thread Insert for M12 x 1.75 is a precision repair solution designed to reinforce and extend the life of damaged threads in metal components. Built for engineers, machinists, and maintenance teams, it delivers durable, high-load thread performance in demanding environments.

  • Material: Austenitic chromium-nickel stainless steel (AISI 304) with a tensile strength of at least 1400 N/mm2.
  • Cross-Section & Forming: Cold-formed, swaged to a rhombic cross-section for maximum thread engagement and efficient use of space.
  • Thread Size: Metric M12 x 1.75
  • Length: 3 × D length (three times the major diameter) for enhanced pull-out resistance and load distribution.
  • Wear, Abrasion & Corrosion Resistance: Delivers superior wear resistance, improved surface finish, and enhanced corrosion and heat resistance compared with a single-screw connection.

BaerCoil inserts provide durable, reusable threads in worn or damaged holes, reducing repair downtime and extending component life. The rhombic cross-section combined with cold-form swaging ensures strong, evenly distributed load transfer, helping resist thread stripping in vibration-heavy or high-load applications. This results in more reliable assemblies, smoother fastener seating, and long-lasting performance across demanding industrial environments.

Part Numbers

Protool Part Number
BAER-1-B7221-3
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.
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

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

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

View full collection →

You are viewing BAER-1-B7221-3. Click any other SKU to view its full details.

Product SKUSizePitchLengthPriceStock Order
BAER-1-B7202-1 M20.41 X D£0.27 In Stock
BAER-1-B7202-15 M20.41.5 X D£0.27 5 days
BAER-1-B7202-2 M20.42 X D£0.32 5 days
BAER-1-B7202-25 M20.42.5 X D£0.37 5 days
BAER-1-B7202-3 M20.43 X D£0.48 In Stock
BAER-1-B7203-1 M2.20.451 X D£0.21 5 days
BAER-1-B7203-15 M2.20.451.5 X D£0.21 5 days
BAER-1-B7203-2 M2.20.452 X D£0.27 5 days
BAER-1-B7203-25 M2.20.452.5 X D£0.27 5 days
BAER-1-B7203-3 M2.20.453 X D£0.27 5 days
BAER-1-B7204-1 M2.50.451 X D£0.16 5 days
BAER-1-B7204-15 M2.50.451.5 X D£0.16 5 days
BAER-1-B7204-2 M2.50.452 X D£0.16 5 days
BAER-1-B7204-25 M2.50.452.5 X D£0.21 5 days
BAER-1-B7204-3 M2.50.453 X D£0.21 5 days
BAER-1-B7205-1 M30.51 X D£0.16 In Stock
BAER-1-B7205-15 M30.51.5 X D£0.16 In Stock
BAER-1-B7205-2 M30.52 X D£0.16 5 days
BAER-1-B7205-25 M30.52.5 X D£0.21 5 days
BAER-1-B7205-3 M30.53 X D£0.21 5 days
BAER-1-B7206-1 M3.50.61 X D£0.16 5 days
BAER-1-B7206-15 M3.50.61.5 X D£0.16 5 days
BAER-1-B7206-2 M3.50.62 X D£0.16 5 days
BAER-1-B7206-25 M3.50.62.5 X D£0.21 5 days
BAER-1-B7206-3 M3.50.63 X D£0.21 5 days
BAER-1-B7207-1 M40.71 X D£0.11 In Stock
BAER-1-B7207-15 M40.71.5 X D£0.16 In Stock
BAER-1-B7207-2 M40.72 X D£0.16 In Stock
BAER-1-B7207-25 M40.72.5 X D£0.21 5 days
BAER-1-B7207-3 M40.73 X D£0.21 5 days
BAER-1-B7208-1 M50.81 X D£0.16 In Stock
BAER-1-B7208-15 M50.81.5 X D£0.16 In Stock
BAER-1-B7208-2 M50.82 X D£0.21 5 days
BAER-1-B7208-25 M50.82.5 X D£0.21 5 days
BAER-1-B7208-3 M50.83 X D£0.21 In Stock
BAER-1-B7209-1 M61.01 X D£0.16 In Stock
BAER-1-B7209-15 M61.01.5 X D£0.16 In Stock
BAER-1-B7209-2 M61.02 X D£0.21 In Stock
BAER-1-B7209-25 M61.02.5 X D£0.27 In Stock
BAER-1-B7209-3 M61.03 X D£0.27 5 days
BAER-1-B7210-1 M71.01 X D£0.21 5 days
BAER-1-B7210-15 M71.01.5 X D£0.21 5 days
BAER-1-B7210-2 M71.02 X D£0.27 5 days
BAER-1-B7210-25 M71.02.5 X D£0.37 5 days
BAER-1-B7210-3 M71.03 X D£0.42 5 days
BAER-1-B7212-1 M81.01 X D£0.21 5 days
BAER-1-B7212-15 M81.01.5 X D£0.27 5 days
BAER-1-B7212-2 M81.02 X D£0.32 5 days
BAER-1-B7212-25 M81.02.5 X D£0.42 5 days
BAER-1-B7212-3 M81.03 X D£0.48 5 days
BAER-1-B7211-1 M81.251 X D£0.21 In Stock
BAER-1-B7211-15 M81.251.5 X D£0.27 In Stock
BAER-1-B7211-2 M81.252 X D£0.32 5 days
BAER-1-B7211-25 M81.252.5 X D£0.42 In Stock
BAER-1-B7211-3 M81.253 X D£0.48 5 days
BAER-1-BE91-15 M91.01.5 X D£0.48 5 days
BAER-1-B7213-1 M91.251 X D£0.32 5 days
BAER-1-B7213-15 M91.251.5 X D£0.37 5 days
BAER-1-B7213-2 M91.252 X D£0.42 5 days
BAER-1-B7213-25 M91.252.5 X D£0.58 5 days
BAER-1-B7213-3 M91.253 X D£0.69 5 days
BAER-1-B7217-1 M101.01 X D£0.27 In Stock
BAER-1-B7217-15 M101.01.5 X D£0.37 5 days
BAER-1-B7217-2 M101.02 X D£0.42 5 days
BAER-1-B7217-25 M101.02.5 X D£0.53 5 days
BAER-1-B7217-3 M101.03 X D£0.58 5 days
BAER-1-B7216-1 M101.251 X D£0.27 5 days
BAER-1-B7216-15 M101.251.5 X D£0.37 5 days
BAER-1-B7216-2 M101.252 X D£0.48 5 days
BAER-1-B7216-25 M101.252.5 X D£0.58 5 days
BAER-1-B7216-3 M101.253 X D£0.69 5 days
BAER-1-B7215-1 M101.51 X D£0.32 5 days
BAER-1-B7215-15 M101.51.5 X D£0.37 In Stock
BAER-1-B7215-2 M101.52 X D£0.42 In Stock
BAER-1-B7215-25 M101.52.5 X D£0.58 In Stock
BAER-1-B7215-3 M101.53 X D£0.69 5 days
BAER-1-BE1125-15 M111.251.5 X D£0.80 5 days
BAER-1-B7219-1 M111.51 X D£0.42 5 days
BAER-1-B7219-15 M111.51.5 X D£0.58 5 days
BAER-1-B7219-2 M111.52 X D£0.74 In Stock
BAER-1-B7219-25 M111.52.5 X D£0.90 5 days
BAER-1-B7219-3 M111.53 X D£1.06 5 days
BAER-1-B7224-1 M121.01 X D£0.37 5 days
BAER-1-B7224-15 M121.01.5 X D£0.48 5 days
BAER-1-B7224-2 M121.02 X D£0.64 5 days
BAER-1-B7224-25 M121.02.5 X D£0.74 5 days
BAER-1-B7224-3 M121.03 X D£0.95 5 days
BAER-1-B7223-1 M121.251 X D£0.37 5 days
BAER-1-B7223-15 M121.251.5 X D£0.53 5 days
BAER-1-B7223-2 M121.252 X D£0.58 5 days
BAER-1-B7223-25 M121.252.5 X D£0.74 5 days
BAER-1-B7223-3 M121.253 X D£0.85 5 days
BAER-1-B7222-1 M121.51 X D£0.42 5 days
BAER-1-B7222-15 M121.51.5 X D£0.58 5 days
BAER-1-B7222-2 M121.52 X D£0.74 In Stock
BAER-1-B7222-25 M121.52.5 X D£0.90 5 days
BAER-1-B7222-3 M121.53 X D£1.01 5 days
BAER-1-B7221-1 M121.751 X D£0.42 5 days
BAER-1-B7221-15 M121.751.5 X D£0.53 In Stock
BAER-1-B7221-2 M121.752 X D£0.58 In Stock
BAER-1-B7221-25 M121.752.5 X D£0.85 5 days
BAER-1-B7221-3 ViewingM121.753 X D£1.06 5 days
BAER-1-B7228-1 M141.01 X D£0.64 5 days
BAER-1-B7228-15 M141.01.5 X D£0.74 5 days
BAER-1-B7228-2 M141.02 X D£0.90 5 days
BAER-1-B7228-25 M141.02.5 X D£1.38 5 days
BAER-1-B7228-3 M141.03 X D£1.70 5 days
BAER-1-B7227-1 M141.251 X D£0.58 5 days
BAER-1-B7227-15 M141.251.5 X D£0.80 5 days
BAER-1-B7227-2 M141.252 X D£0.90 5 days
BAER-1-B7227-25 M141.252.5 X D£1.11 5 days
BAER-1-B7227-3 M141.253 X D£1.48 5 days
BAER-1-B7226-1 M141.51 X D£0.64 5 days
BAER-1-B7226-15 M141.51.5 X D£0.74 5 days
BAER-1-B7226-2 M141.52 X D£0.95 5 days
BAER-1-B7226-25 M141.52.5 X D£1.22 5 days
BAER-1-B7226-3 M141.53 X D£1.48 5 days
BAER-1-B7225-1 M142.01 X D£0.58 5 days
BAER-1-B7225-15 M142.01.5 X D£0.85 5 days
BAER-1-B7225-2 M142.02 X D£1.17 5 days
BAER-1-B7225-25 M142.02.5 X D£1.54 5 days
BAER-1-B7225-3 M142.03 X D£1.96 5 days
BAER-1-B7235-1 M161.51 X D£0.74 5 days
BAER-1-B7235-15 M161.51.5 X D£0.95 5 days
BAER-1-B7235-2 M161.52 X D£1.27 5 days
BAER-1-B7235-25 M161.52.5 X D£1.70 5 days
BAER-1-B7235-3 M161.53 X D£1.96 5 days
BAER-1-B7234-1 M162.01 X D£0.69 In Stock
BAER-1-B7234-15 M162.01.5 X D£0.85 5 days
BAER-1-B7234-2 M162.02 X D£1.06 5 days
BAER-1-B7234-25 M162.02.5 X D£1.70 5 days
BAER-1-B7234-3 M162.03 X D£2.86 5 days
BAER-1-B7238-1 M181.51 X D£1.33 5 days
BAER-1-B7238-15 M181.51.5 X D£1.80 5 days
BAER-1-B7238-2 M181.52 X D£2.17 5 days
BAER-1-B7238-25 M181.52.5 X D£2.28 5 days
BAER-1-B7238-3 M181.53 X D£2.49 5 days
BAER-1-B7237-1 M182.01 X D£1.27 5 days
BAER-1-B7237-15 M182.01.5 X D£1.70 5 days
BAER-1-B7237-2 M182.02 X D£2.12 5 days
BAER-1-B7237-25 M182.02.5 X D£3.18 5 days
BAER-1-B7237-3 M182.03 X D£3.71 5 days
BAER-1-B7236-1 M182.51 X D£1.38 5 days
BAER-1-B7236-15 M182.51.5 X D£1.86 5 days
BAER-1-B7236-2 M182.52 X D£2.60 5 days
BAER-1-B7236-25 M182.52.5 X D£3.23 5 days
BAER-1-B7236-3 M182.53 X D£3.71 5 days
BAER-1-B7241-1 M201.51 X D£1.48 5 days
BAER-1-B7241-15 M201.51.5 X D£1.75 5 days
BAER-1-B7241-2 M201.52 X D£2.28 In Stock
BAER-1-B7241-25 M201.52.5 X D£3.13 5 days
BAER-1-B7241-3 M201.53 X D£3.34 5 days
BAER-1-B7240-1 M202.01 X D£1.59 5 days
BAER-1-B7240-15 M202.01.5 X D£2.60 5 days
BAER-1-B7240-2 M202.02 X D£3.45 5 days
BAER-1-B7240-25 M202.02.5 X D£3.71 5 days
BAER-1-B7240-3 M202.03 X D£4.51 5 days
BAER-1-B7239-1 M202.51 X D£1.54 In Stock
BAER-1-B7239-15 M202.51.5 X D£1.96 5 days
BAER-1-B7239-2 M202.52 X D£3.07 5 days
BAER-1-B7239-25 M202.52.5 X D£3.71 5 days
BAER-1-B7239-3 M202.53 X D£4.98 5 days
BAER-1-B7244-1 M221.51 X D£1.91 5 days
BAER-1-B7244-15 M221.51.5 X D£2.70 5 days
BAER-1-B7244-2 M221.52 X D£3.34 5 days
BAER-1-B7244-25 M221.52.5 X D£3.76 5 days
BAER-1-B7244-3 M221.53 X D£5.14 5 days
BAER-1-B7243-1 M222.01 X D£1.96 5 days
BAER-1-B7243-15 M222.01.5 X D£2.97 5 days
BAER-1-B7243-2 M222.02 X D£4.08 5 days
BAER-1-B7243-25 M222.02.5 X D£5.09 5 days
BAER-1-B7243-3 M222.03 X D£7.84 5 days
BAER-1-B7242-1 M222.51 X D£2.28 5 days
BAER-1-B7242-15 M222.51.5 X D£3.29 5 days
BAER-1-B7242-2 M222.52 X D£4.24 5 days
BAER-1-B7242-25 M222.52.5 X D£5.35 5 days
BAER-1-B7242-3 M222.53 X D£6.31 5 days
BAER-1-B7247-1 M241.51 X D£2.23 5 days
BAER-1-B7247-15 M241.51.5 X D£3.39 5 days
BAER-1-B7247-2 M241.52 X D£4.45 5 days
BAER-1-B7247-25 M241.52.5 X D£5.62 5 days
BAER-1-B7247-3 M241.53 X D£7.74 5 days
BAER-1-B7246-1 M242.01 X D£2.65 5 days
BAER-1-B7246-15 M242.01.5 X D£3.60 5 days
BAER-1-B7246-2 M242.02 X D£3.92 5 days
BAER-1-B7246-25 M242.02.5 X D£5.94 5 days
BAER-1-B7246-3 M242.03 X D£6.73 5 days
BAER-1-B7245-1 M243.01 X D£3.23 5 days
BAER-1-B7245-15 M243.01.5 X D£4.66 5 days
BAER-1-B7245-2 M243.02 X D£5.41 5 days
BAER-1-B7245-25 M243.02.5 X D£7.31 5 days
BAER-1-B7245-3 M243.03 X D£10.81 5 days
BAER-1-B7349-15 M261.51.5 X D£4.72 5 days
BAER-1-B7352-15 M271.51.5 X D£4.72 5 days
BAER-1-B7351-15 M272.01.5 X D£4.72 5 days
BAER-1-BE273-1 M273.01 X D£3.66 5 days
BAER-1-BE273-15 M273.01.5 X D£5.72 5 days
BAER-1-BE273-2 M273.02 X D£7.16 5 days
BAER-1-B7353-15 M281.51.5 X D£12.14 5 days
BAER-1-B7356-1 M301.51 X D£12.99 In Stock
BAER-1-B7356-15 M301.51.5 X D£14.63 5 days
BAER-1-B7355-1 M302.01 X D£11.66 5 days
BAER-1-B7355-15 M302.01.5 X D£5.46 5 days
BAER-1-B7354-1 M303.51 X D£9.33 5 days
BAER-1-B7354-15 M303.51.5 X D£14.58 5 days
BAER-1-B7354-2 M303.52 X D£14.79 5 days
BAER-1-B7358-1 M332.01 X D£12.03 5 days
BAER-1-B7358-15 M332.01.5 X D£16.17 5 days
BAER-1-B7357-1 M333.51 X D£13.83 5 days
BAER-1-B7357-15 M333.51.5 X D£16.17 5 days
BAER-1-B7357-2 M333.52 X D£19.19 5 days
BAER-1-B7363-15 M361.51.5 X D£18.71 5 days
BAER-1-B7362-15 M362.01.5 X D£17.07 5 days
BAER-1-B7361-15 M363.01.5 X D£20.35 5 days
BAER-1-BE364-1 M364.01 X D£7.37 5 days
BAER-1-BE364-15 M364.01.5 X D£11.45 5 days
BAER-1-BE364-2 M364.02 X D£15.32 5 days
BAER-1-BE392-15 M392.01.5 X D£43.57 5 days
BAER-1-BE394-15 M394.01.5 X D£25.71 5 days
BAER-1-BE422-15 M422.01.5 X D£72.88 5 days
BAER-1-BE423-15 M423.01.5 X D£72.88 5 days
BAER-1-BE424-15 M424.01.5 X D£72.88 5 days
BAER-1-B7128 M141.25Length£0.48 In Stock
BAER-1-B7228 M141.25Length£0.64 5 days
BAER-1-B7328 M141.25Length£0.80 5 days

Other sizes in this range

with tools we think you'll like
All 225 →
BaerCoil Thread Insert Metric - M2 x 0.4 - 1 X D
Quick view
BaerCoil Thread Insert Metric - M2 x 0.4 - 1 X D
BAER
£0.27
BaerCoil Thread Insert Metric - M2 x 0.4 - 1.5 X D
Quick view
BaerCoil Thread Insert Metric - M2 x 0.4 - 1.5 X D
BAER
£0.27
BaerCoil Thread Insert Metric - M2 x 0.4 - 2 X D
Quick view
BaerCoil Thread Insert Metric - M2 x 0.4 - 2 X D
BAER
£0.32
BaerCoil Thread Insert Metric - M2 x 0.4 - 2.5 X D
Quick view
BaerCoil Thread Insert Metric - M2 x 0.4 - 2.5 X D
BAER
£0.37
BaerCoil Thread Insert Metric - M2 x 0.4 - 3 X D
Quick view
BaerCoil Thread Insert Metric - M2 x 0.4 - 3 X D
BAER
£0.48
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 1 X D
Quick view
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 1 X D
BAER
£0.21
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 1.5 X D
Quick view
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 1.5 X D
BAER
£0.21
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 2 X D
Quick view
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 2 X D
BAER
£0.27
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 2.5 X D
Quick view
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 2.5 X D
BAER
£0.27
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 3 X D
Quick view
BaerCoil Thread Insert Metric - M2.2 x 0.45 - 3 X D
BAER
£0.27
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 1 X D
Quick view
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 1 X D
BAER
£0.16
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 1.5 X D
Quick view
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 1.5 X D
BAER
£0.16
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 2 X D
Quick view
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 2 X D
BAER
£0.16
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 2.5 X D
Quick view
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 2.5 X D
BAER
£0.21
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 3 X D
Quick view
BaerCoil Thread Insert Metric - M2.5 x 0.45 - 3 X D
BAER
£0.21
BaerCoil Thread Insert Metric - M3 x 0.5 - 1 X D
Quick view
BaerCoil Thread Insert Metric - M3 x 0.5 - 1 X D
BAER
£0.16
View all products in this range