Marine parts and boating supplies

These triple blocks from Garhauer also have a Becket

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Specifications: these recommendations are for normal use. If you plan to use these blocks in exceptionally high load areas, we recommend switching to the next higher series of blocks. If you are using a single block as a turning block and the line is coming back at around 180 degrees, the safe working load is HALVED. You are advised to use a foot block or high load block.
Series	15	20	25	27	30	40	50	60	70
Max Line Size	5/16" 8mm	5/16" 8mm	3/8" 10mm	3/8" 10mm	9/16" 14mm	9/16" 14mm	5/8" 16mm	5/8" 16mm	3/4" 20mm
Sheave Diameter	1" 25mm	1 3/4" 43mm	2" 50mm	2 3/8" 60mm	2 5/8" 65mm	2 5/8" 65mm	3" 76mm	3 1/4" 85mm	4" 100mm
SWL	400lb 182kg	600lb 272kg	1150lb 520kg	1200lb 544kg	2000lb 907kg	2800lb 1270kg	3000lb 1360kg	3500lb 1590kg	5000lb 2267kg
NB: SWL - Safe Working load. The breaking load is 50% more. All Garhauer products, as long as you have the correct series or block for the job, come with Garhauer's 10 year guarantee The safe working loads (SWL) are detailed on the block webpages. This is taken from the shackle strength. We would be happy to assist you in choosing the correct sized block for the job you want it to do.