4 in. 3 Ton Snatch Block

$74.97 - $279.96

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4 in. 3 Ton Snatch Block

Featuring a 3-ton (6,000 lbs) stamped rating, this 4 in 3 ton snatch block is a medium-duty block. The block is hot-dipped galvanized for a long-lasting finish. It can accept boat lift cables up to 1/2 inch in diameter. The boat lift cable is installed on the sheave inside the yarding block housing. The snatch block has a 4-inch sheave installed at the factory. When the cable moves up or down, the sheave moves. Comes with an installed 1/4 in grease fitting that is protected. The block is equipped with a breakaway shackle at the top. They are ready to install. Boat lifts use them at the corners. This allows boat lift cables to be redirected.

Shackle Pieces

  • ‘Bow’ – The curved portion of the shackle body opposite the pin, also known as the bail, body, dee, or bowl
  • ‘Ears’ – the part of the shackle body that supports the shackle pin
  • ‘Pin‘ – a steel bolt that spans the two shackle ears
  • ‘Shoulder’ – the part of the pin that makes contact with the ear when the pin is fully threaded or engaged

 Size: 3 in. / 1 1/2 Ton 4 in. / 3 Ton 5 in. / 4 1/2 Ton
Stamp Rating: 3,000 lbs. 6,000 lbs. 9,000 lbs.
Dimensions: 6 1/2 in. x 3 7/8 in. x 3 in. 7 3/4 in. x 5 in. x 3 1/4 in. 10 in. x 6 in. x 4 in.
Weight: 3 1/2 lbs. 6.1 lbs.
9.45 lbs.
Material: Steel Steel Steel
Finished: Galvanized Galvanized Galvanized
Sheave Size: 3 in. x 3/4 in. 4 in. x 3/4 in. 5 in. x 3/4 in.
Sheave Bore: 1/2 in. 1/2 in. 5/8 in.
Sheave Cable Groove: 1/2 in. 1/2 in. 5/8 in.
Shackle Dimensions: 3 in. x 3 in. x `/1 in. 3 in. x 3 in. x 5/8 in. 4 in. x 3 7/8 in. x 5/8 in.
Safety Pin Holes: 2 2 2
Safety Pin Hole Size: 1/2 in. 1/2 in. 5/8 in.
Safety Pin Quick Release Size: 2 7/8 in. x 5/16 in. (Fully Extended) 3 1/4 in. x 1/2 in. (Fully Extended) 3 5/8 in. x 5/8 in. (Fully Extended)
Yarding Block Dimensions: 4 3/4 in. x 3 7/8 in. x 3 1/4 in. 6 1/2 in. x 5 in. x 3 1/4 in. 7 1/2 in. x 5 7/8 in. x 2 7/8 in.
Housing Holds: 3 in. Sheave 4 in. Sheave 5 in. Sheave
Grease Fitting Size: 1/4 in. (Cast Protected) 1/4 in. (Cast Protected) 1/4 in. (Cast Protected)
Housing Bottom Bolt: 1 3/4 in. x 1/4 in. (Cast Protected) 1 3/4 in. x 1/4 in. (Cast Protected) 1 15/16 in. x 1/4 in. (Cast Protected)

Always ensure that the shackle that you select meets or exceeds the working load limit for the task at hand and is comparable to the Working Load Limit (WLL) of the slings and other rigging hardware being used.

Product Overview

  • Stamp Rating: 3 ton / 6,000 lbs.
  • Break-away shackle
  • Accepts cable up to  1/2 in. in diameter
  • Cast protected 1/4 in. grease fitting
  • Factory mounted 4 in. sheave