40MM SINGLE BLOCK

A20401HK – 40mm Dynamic Single Swivel Hook Block | New 2023 | High-Performance Block for Keelboats & Dinghies

New for 2023, the A20401HK 40mm Dynamic Single Swivel Hook Block is built from high-strength, lightweight glass-loaded nylon and combines Allen's renowned dynamic bearing technology to deliver a high-performance block perfectly suited for keelboats and dinghies.

Ideal for use on main, jib and spinnaker sheets on dinghies, as well as keelboat control lines, this block delivers smooth bearing performance with the added convenience of a 360-degree swivel hook for fast and effortless attachment and removal.

Patented Bearing System – Dynamic Block Technology Dynamic Blocks feature an exclusive patented bearing system using twin rows of stainless-steel ball bearings running on a stainless-steel rail. The ball bearings are caged for further friction reduction, delivering superior load-carrying capacity and outstanding longevity compared to conventional bearing systems on the market.

Swivel Hook Head – Instant Attachment & Quick Release The block features a 360-degree swivelling hook for super easy attachment and removal. Ideal for lightweight control systems where speed and convenience are essential.

Becket – Versatile Tie-Off Point The 40mm range features a large central hole that doubles as a becket tie-off point. Specific becket variations are also available for dedicated applications