We use cookies, which are small text files, to improve your experience on our website and to show you personalised content. You can allow all or manage them individually. You can find out more on our Cookie Page at any time.

Skip to Content

🎄 Our Christmas Shop Is Open →

Boat Care & Maintenance
Books & Gifts
- View All
- Books
- Charts
- Gift Ideas
- Calendars
- DVDs
- Model Boats
Chandlery
Clothing
Boat Covers
Sails
- View All
- Sail Accessories
- Enterprise
- Fireball
- Flying Fifteen
- GP14
- Heron
- Laser
- Laser 2
- Laser Pico
- Mirror
- Miracle
- National 12
- Optimist
- RS Feva
- Sport 14
- Streaker
- Topper
- Topper Topaz Sails
- Wayfarer
Trailers & Trollies
Dinghy Classes
Customer Services

Sign In Create an Account

Boat Care & Maintenance
Books & Gifts
Chandlery
Clothing
- Buoyancy Aids & Lifejackets Dinghy Tops Drysuits Footwear Gloves Hats & Caps Hifits / Waterproof Trousers Holdall, Kit Bags & Dry Bags Knee Pads Rash Vests Sunglasses Thermalwear Trapeze Harness Watches
- Wetsuits Clothing Maintenance Sailing Knives Accessories
Boat Covers
- Dinghy Boats Covers
  
  See All Dinghy Boat Covers
  
  Inflatable Dinghy Covers
  
  Made To Measure Boat Covers
  
  Spares And Maintenance
- Popular Boat Covers
  
  Falmouth Bass Boat Covers
  
  GP14 Boat Covers
  
  Heron Boat Covers
  
  Laser Boat Covers
  
  Laser 2 Boat Covers
  
  Laser 2000 Boat Covers
  
  Laser Pico Boat Covers
  
  Mirror Boat Covers
  
  Optimist Boat Covers
  
  RS200 Boat Covers
  
  RS Aero Boat Covers
  
  RS Feva Boat Covers
  
  RS Tera Boat Covers
  
  Scow Boat Covers
  
  Topper Boat Covers
  
  Wanderer Boat Covers
  
  Wayfarer Boat Covers
Sails
Trailers & Trollies
Dinghy Classes
- Enterprise Catalogue GP14 Catalogue Laser & ILCA Catalogue Mirror Catalogue Optimist Catalogue RS200 Catalogue RS Feva RS Tera Topaz Catalogue Topper Catalogue Wayfarer Catalogue
Customer Services

Search

Loading...

FREE SHIPPING
Free for most orders over £100*
UK Manfacturing
Manufacturing and Repairs in the UK
Free Returns*
Free Royal Mail returns, conditions apply
Feefo Reviews
2800+ positive reviews

My Cart

Loading...

Customer Login

Checkout using your account

Email Address

Password

Forgot Your Password?

Checkout as a new customer

Creating an account has many benefits:

See order and shipping status
Track order history
Check out faster

Create an Account

Home
Chandlery
Blocks
Allen Blocks

Shop By

Active filtering (1)

Brand Allen

Category

Allen 20mm Dynamic Blocks Allen 20mm Dynamic Blocks
Allen 30mm Dynamic Blocks Allen 30mm Dynamic Blocks
Allen 40mm Dynamic Blocks Allen 40mm Dynamic Blocks
Allen Plain Bearing Blocks Allen Plain Bearing Blocks
Allen Ratchet Blocks Allen Ratchet Blocks
Allen Sheaves Allen Sheaves
Allen High Tension Blocks Allen High Tension Blocks

Brand

Allen

Sheave Size (mm)

10-17mm
18-21mm
22-26mm
27-34mm
35-44mm
45-54mm
55-64mm

Block Type

Single
Double
Triple
Sheave Only

Block Options

Becket
Becket Through Axle
Cam Cleat
Fiddle
Ratchet
Snatch Block
V Cleat

Attachment Method

Cheek Block
Fixed Head
Hook
Inglefield Clip
Kicker Key
Pivoting Lead Block
Removable Head
Rope
Shackle
Stand Up Base
Surface Mount
Swivel
Through Deck

Bearing Type

Ball Bearing
Plain Bearing

Pin Diameter (mm)

3
4
5

Price

£0.00 - £100.00
£100.00 - £200.00

On Sale

On Sale

Allen - Allen Blocks

Shop By

Allen 60mm Dynamic Swivel Block

Special Price £58.25 Regular Price £67.02

-13%
Allen Pro-Ratchet 50 Block with Fiddle

Special Price £78.60 Regular Price £95.00

-17%
Allen Pro-Ratchet 60mm with Fiddle

Special Price £123.35 Regular Price £142.20

-13%
Allen Plain Bearing Double Through Deck Block 20mm

£31.60
Allen 20mm Dynamic Block

£15.24
Allen 20mm Dynamic Ezi-Tii Block

£15.24
Allen Laser Kicker Block Extreme High Load With Key Blue

Special Price £150.70 Regular Price £172.46

-13%
Allen Single X2 Auto Ratchet Block 45mm

Special Price £75.80 Regular Price £87.14

-13%
Allen 100mm X 1.5mm Type 2 Dyneema Soft Shackle

£14.27
Allen Lightweight 16mm Plain Bearing Block

£7.38
Allen 20mm Extreme High Load Block Blue

Special Price £117.25 Regular Price £134.14

-13%
Allen 20mm Dynamic Block On Saddle And Spring

£24.83
Allen 20mm Dynamic Block With Swivel Shackle Head

£37.28
Allen 30mm Dynamic Block

£18.79
Allen 20mm Dynamic Composite Cheek Block

£24.61
Allen Lightweight 25mm Plain Bearing Block

£9.85
Allen 38mm Single Plain Bearing Block

£12.96
Allen 38mm Single Plain Bearing Block With HA74 Inglefield Clip

£15.98
Allen 38mm Single Plain Bearing Block with Becket

£16.09
Allen 29mm Single Plain Bearing Block

£7.38
Allen 29mm Single Plain Bearing Block With HA74 Inglefield Clip

£11.26
Allen 30mm Dynamic Block On Saddle With Spring

£28.15
Allen 30mm Dynamic Composite Cheek Block

£19.27
Allen 60mm Pro-Ratchet Block

Special Price £93.40 Regular Price £107.32

-13%
Allen 20mm Dynamic Cheek Block

£22.30
Allen 20mm Micro Through Deck Or Stand Up Block

£22.07
Allen 20mm Multi Function Dynamic Block

£14.12
Allen 20mm Dynamic Block With Fork Head

£23.68
Allen Single Block With Becket

£12.04
Allen Plain Bearing Block 20mm

£9.00
Allen 20mm Dynamic Hook Block

£22.98
Allen Single Block With Becket And Straight Kicker Key

£20.65
Holt Fiddle Block With V Jammer

£22.10
Allen 'V' Cleat Fiddle Block With Hook

£27.75
Allen Sheave Box 38mm Acetal Plain Bearing

£16.33
Allen 20mm Dynamic Block And Swivel Fork Head

£33.88
Allen 40mm Dynamic Ezi-Ti Block

£41.39
Allen 40mm Ball Bearing Snatch Block

Special Price £50.40 Regular Price £58.04

-13%
Allen 20mm Dynamic Double Block

£37.36
Allen 40mm Dynamic Block

£41.39
Allen 40mm Dynamic Bolt Block

£45.96
Allen 40mm Dynamic Swivel Block

£46.97
Allen 40mm Dynamic Cheek Block

£40.09
Allen 40mm Dynamic Double Block

£93.05
Allen 40mm Extreme High Load Block Blue

Special Price £170.00 Regular Price £194.58

-13%
Allen 20mm Dynamic Double Block And Becket

£39.34
Allen Nylon Sheave Box and 38mm Nylon Sheave

£13.06
Allen Nylon Sheave Box and 38mm Alloy Sheave

£25.63

Items 1-48 of 87

1
2

Show

We’re happy to help

View our advice centre, read about our services, get the information you need or get in touch with any question you might have.

Follow us

About Us

Our Story
Manufacturing in the UK
Meet the Team
Supplying Sailing Clubs, Scouts and Schools
Working with Industry
Feefo Reviews
Green Policy
Contact Us

Customer Services

My Account
Order Status
Shipping Charges
International Shipping and Customs
Returns & Exchanges
Multi Buy Discounts

Info

Privacy Policy
Opening hours
Cookies
Terms & Conditions

Visit TridentUK Store

Trident Quay
6 South Shore Road
Gateshead
Tyne And Wear
NE8 3AE
0191 4901736
Get Directions

Family owned and run business
Manufacturing in Gateshead, UK
Since 1986
Passionate about sailing

Privacy Policy | Terms & Conditions

Loading...

Loading...