Allen A2021HK Single 20 mm Block with HookView all products in International Laser Class Association #:  10995
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Allen A2021HK Single 20 mm Block with Hook

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A good hook and pulley for the Laser outhaul system. This block is standard on all boats upgraded with Allen parts and blocks.
More Details...   #10995
MFG Part#:   A2021HK
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Allen Brothers (Fittings) Ltd

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View all Products in International Laser Class Association

Allen 2021HK Single 20 mm Dynamic Block with Hook.

A good hook and pulley for the Laser outhaul system. These blocks are standard on all boats upgraded with Allen parts and blocks.

Allen 20 mm Single Dynamic Blocks are for applications that require constant sheave movement.

Dynamic Blocks feature Allen Brothers patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail.

This provides a superior load-carrying ability and longevity when compared to other bearing systems which run on a plastic rail.

The patented Ultra-Strap is unique when compared to other designs because of its coining process.

This process strengths the strap, making it more reliable and hard-wearing as well as making it much more rope friendly than other designs.

  • ILCA approved
  • Breaking load: 165 kg
  • Length: 60 mm
  • Maximum line size: 6 mm
  • Maximum working load: 115 kg
  • Sheave diameter: 20 mm
  • Weight: 17.5 g

  Allen A2021HK Dimensional Drawing
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Q. Do you offer Free Shipping?
A. We have free ground shipping via UPS or Canada Post within Canada on most orders of $99 or more (pre-tax).

Q. What do you mean by most orders?
A. Some items are exempt from this offer and are indicated on the product page. Exempt items are usually bulky or heavy items such as buoys. Over 98% of the items on qualify for the free shipping offer.
To see what your shipping charge (if any) will be you can add the item(s) and quantities to the shopping cart and you will see a shipping cost calculator

Q. Where do you ship from?
A. We ship from Halifax, NS

Q. What is the delivery time?
A.  NS, NB, PE: 1 - 2 business days,
      ON, QC, NL: 2- 4 business days
      MB, SK, AB: 4-5 business days
      BC: 5-7 business days
When your order ships you will be emailed a tracking number which will give you the scheduled delivery date

Q. Do you offer Express Shipping?
A. We offer Express Shipping on some orders depending on the items ordered and the delivery address. If Express shipping is available for your order you will see the option on the checkout page. If you do not see the Express option and you want Express shipping please send an email and we will provide you with a quote (

Q. Do you require a signature on delivery?
A. We sometimes add a signature requirement especially if it is a high value package

Please Note:
Very Remote areas are exempt from Free Shipping offer. These are typically remote northern areas. Nunavut as well as many parts of the Yukon and NWT are exempt from free shipping

Money Back Guarantee
Guarantee You may return your purchase to us (with a return authorization number - use this form) within 30 days and we will refund the purchase price of the product. Items which are cut to order (rope, wire etc), software, chart cards and printed materials (paper charts, books) are not returnable.

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