Through Deck Blocks - Allen

Allen through deck blocks offer frictionless guidance for rope and wire control lines which are required to pass through a deck.

Featuring a hard-wearing acetal body shaped perfectly to house the sheave, which results in a performance that you can rely on for adjustable rigging and other highly loaded applications.

Available with one or two sheaves and in plain and ball bearing systems to suit a wide variety of applications.

8mm Plain bearing Acetal sheave Aluminium Box 43 x 17mm
On Sale 27% OFF RRP $21.10
8mm Plain Bearing Alloy Sheave Aluminium Box 52 x 15mm
On Sale 34% OFF RRP $38.00
Nylon Mast Head Sheave Box - Plain Bearing - to fit 20mm Tube
On Sale 27% OFF RRP $74.90
Sheave cheek

Sheave cheek


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Through deck bushes, also known as fairleads, have been created to protect surfaces from a rubbing rope or wire.

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Through Deck Block Range Expands

Allen are pleased to announce that our range of 20mm & 30mm through deck blocks is expanding to include stainless steel sheaves and recycled acetal sheaves.

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