Page 12 - Harken

29 mm Blocks 341 342

About Carbo Air blocks: see feature page at 343
beginning of this section.

340 Doubles and triples feature U-Locks
344 to hold the swivel in front/side
position, or to let it spin freely.
345

348

346
347

30 mm
349 (1 3/16") 381 352
371
Use as becket block without the
additional height of a becket.
350
32 mm
(1 1/4")
High-strength pivoting lead blocks
353 with cams are used for halyard
controls on larger keelboats and
395 396 as “headknockers” on dinghies and
beachcats for sheeting directly from
the boom. Hole spacing and rivet
size are the same as Classic models,
making upgrades easy. Cam reverses
for either up or down cleating.

Sheave Shackle pin Max line Maximum Breaking
Part Ø Length Weight Ø Ø working load load
No. Description in mm in mm oz g in mm in mm lb kg lb kg
340 Single/swivel 1 1/8 29 2 5/8 66 .9 26 5/32 4 5/16 8 330 150 1000 454
341 Single/swivel/becket 1 1/8 29 3 1/16 78 1 28 5/32 4 5/16 8 330 150 1000 454
342 Double/swivel 1 1/8 29 2 7/8 73 1.8 51 3/16 5 5/16 8 660 299 1625 737
343 Double/swivel/becket 1 1/8 29 3 3/8 85 1.9 54 3/16 5 5/16 8 660 299 1625 737
344 Triple/swivel 1 1/8 29 2 7/8 73 2.6 74 3/16 5 5/16 8 990 449 2000 907
345 Triple/swivel/becket 1 1/8 29 3 3/8 85 2.7 77 3/16 5 5/16 8 990 449 2000 907
346 Triple/471 Carbo-Cam** 1 1/8 29 2 7/8 73 4.6 130 3/16 5 1/4 6 750 340 1500 680
347 Triple/471 Carbo-Cam/becket** 1 1/8 29 3 3/8 85 4.7 133 3/16 5 1/4 6 900 408 1800 816
348 Single/fi xed* 1 1/8 29 1 15/16 49 .8 23 5/16 8 330 150 1000 454
349 Stand-up/fi xed* 1 1/8 29 2 3/16 56 1.1 31 5/16 8 330 150 1000 454
350 Cheek 1 1/8 29 2 1/8 53 .6 17 5/16 8 330 150 1000 454
352 90° fi xed head* 1 1/8 29 2 1/16 52 .9 26 5/16 8 330 150 1000 454
353 Traveler 1 1/8 29 3 5/8 92 1.2 34 5/16 8 330 150 1000 454
371 Clew block assembly 1 1/8 29 4 7/8 124 1.8 51 5/16 8 330 150 1000 454
381 Double/fi xed 1 1/8 29 2 1/8 54 1.2 34 5/16 8 660 299 1625 737
395 Pivoting lead block/468 Cam-Matic** 1 1/8 29 3 15/16 100 3.2 90.7 1/4 6 200 91 650 295
396 Pivoting lead block/471 Carbo-Cam** 1 1/8 29 3 15/16 100 2.96 83.7 1/4 6 150 68 650 295
*Can be used as becket block. **Maximum working loads and breaking loads for blocks based on cam strengths.
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