



Adaptaflex AL21/M20/A/BL Adaptalok Black Nylon Type A Straight Fitting With Fixed External Thread & Locknut IP66 M20 21mm
AL21/M20/A/BL
Range Options
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AL21/M20/A/BL | 21mm Dia, Fixed, IP66 | £2.74 £2.28 |
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AL28/M25/A/BL | 28mm Dia, Fixed, IP66 | £3.48 £2.90 |
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Adaptaflex AL21/M20/A/BL Adaptalok Straight Fitting – IP66 Rated, Black Nylon with Fixed M20 Thread & Locknut
The Adaptaflex AL21/M20/A/BL is a high-performance Type A straight fitting designed for secure insertion into threaded entries and knockouts. Supplied with a locknut (metric thread), this non-metallic fitting offers strength, flexibility, and ease of installation—ideal for modern cable management systems.
- Secure Installation: Fixed external M20 thread and supplied locknut ensure reliable fastening into enclosures and panels.
- Durable Non-Metallic Design: Made from Polyamide 66 (Nylon), offering corrosion resistance and reduced weight.
- IP66 Protection: Provides excellent ingress protection against dust and powerful water jets.
- Easy to Fit: Quick to cut and assemble, part of the user-friendly Adaptalok system.
- Flexible & Resilient: Excellent fatigue life with return-to-shape capability for demanding environments.
Technical Specification
- Thread Size: M20
- Conduit Size: 21mm (Type A)
- Material: Polyamide (Nylon) 66
- Fitting Type: Straight with fixed external thread
- Ingress Protection: IP66
✅ Use the Adaptaflex AL21/M20/A/BL for a fast, corrosion-resistant, and high-integrity cable fitting solution in your conduit installations!

Ean Code | 5020963000164 |
Range | Adaptaflex Adaptalok |
Thread Standard | Male |
Product | Flexible Conduit Connectors |
Type | Fixed |
Colour | Black |
Diameter | 20 mm |
Unit Weight | 0.009 kg |
Material | Polyamide |
Standards | ISO 4589-2 IEC 60695 IEC 61386-1 UL 94 UL (Canada and US) |
Ce Approved | Y |
Normal Operating Minimum Temperature | -50 Degrees C |
Normal Operating Maximum Temperature | 120 Degrees C |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.