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Harken Small Boat Blocks: Tech Info
harken sailboat yatch equipment
Go to: Harken Classic Blocks | Harken Carbo Blocks
Harken - Tech Info

- 16 mm Blocks
- Micro Blocks
- Bullet Blocks
- Big Bullet Blocks
- Dinghy Blocks


- 2.25" Blocks
- 3.00" Blocks
- Fiddle Blocks
- Dinghy Vang Systems
- Two-Speed Mainsheet System

- Hexaratchets
- Little Hexaratchets
- Hexa-Cat Bases
- Low-Profile Triples
- Line / Wire High Strength

16 mm Blocks: harken small sailboat blocks, harken classic blocks, harken block
Part
No.
Description
Sheave
Max Line
Safe
Working Load
Breaking
Strength
in
mm
in
mm
lb
kg
lb
kg
368 In-line exit
5/8
16
7/32
5
250
113
1200
544
376 Forkhead
5/8
16
7/32
5
250
113
1200
544
391 Hook-in halyard
5/8
16
7/32
5
250
113
400
181
404 Single
5/8
16
7/32
5
250
113
1200
544
405 Single/becket
5/8
16
7/32
5
250
113
1200
544
406 Double
5/8
16
7/32
5
450
204
1200
544
407 Double/becket
5/8
16
7/32
5
450
204
1200
544
408 Triple
5/8
16
7/32
5
700
318
1200
544
409 Triple/becket
5/8
16
7/32
5
700
318
1200
544
416 Cheek
5/8
16
7/32
5
250
113
1200
544
417 Single/swivel
5/8
16
7/32
5
250
113
750
339
421 Thru-deck
5/8
16
7/32
5
250
113
1200
544
432 Pivot cheek block
5/8
16
7/32
5
250
113
750
339
437 Flip-flop block
5/8
16
7/32
5
250
113
1200
544
442 Block/eyestrap assembly
5/8
16
7/32
5
250
113
1200
544

** Safe working loads and breaking strengths for blocks based on cam strengths
Top
.

Micro Blocks: harken small sailboat blocks, harken classic blocks, harken block
Part
No.
Description
Sheave
Max Line
Safe
Working Load
Breaking
Strength
in
mm
in
mm
lb
kg
lb
kg
224 Single
7/8
22
1/4
6
200
91
1200
544
225 Single/becket
7/8
22
1/4
6
200
91
1200
544
226 Double
7/8
22
1/4
6
350
159
1200
544
227 Double/becket
7/8
22
1/4
6
350
159
1200
544
228 Triple
7/8
22
1/4
6
500
227
1200
544
229 Triple/becket
7/8
22
1/4
6
500
227
1200
544
230 Triple/423 Carbo-Cam
7/8
22
1/4
6
500
227
1200
544
231 Triple/423 Carbo-Cam/becket
7/8
22
1/4
6
500
227
1200
544
232 Traveler
7/8
22
1/4
6
200
91
1200
544
233 Cheek
7/8
22
1/4
6
200
91
1200
544
234 Single/shackle
7/8
22
1/4
6
200
91
1200
544
235 Single/shackle/becket
7/8
22
1/4
6
200
91
1200
544
242 Thru-deck
7/8
22
1/4
6
200
91
1200
544
243 Upright
7/8
22
1/4
6
200
91
1200
544
244 Fiddle/V-jam
7/8
22
1/4
6
350
159
1200
544
245 Fiddle/V-jam/becket
7/8
22
1/4
6
350
159
1200
544
292 Single/swivel
7/8
22
1/4
6
200
91
1200
544
377 Forkhead
7/8
22
1/4
6
200
91
1200
544
443 Block/eyestrap assembly
7/8
22
1/4
6
200
91
1000
454
Top
.

Bullet Blocks : harken small sailboat blocks, harken classic blocks, harken block
Part
No.
Description
Sheave
Max Line
Safe
Working Load
Breaking
Strength
in
mm
in
mm
lb
kg
lb
kg
082 Single
1 1/8
29
5/16
8
300
136
2000
907
083 Single/becket
1 1/8
29
5/16
8
300
136
2000
907
084 Double
1 1/8
29
5/16
8
400
181
2000
907
085 Double/becket
1 1/8
29
5/16
8
400
181
2000
907
086 Triple
1 1/8
29
5/16
8
600
272
2000
907
087 Triple/becket
1 1/8
29
5/16
8
600
272
2000
907
088 Thru-deck
1 1/8
29
5/16
8
300
136
2000
907
089 In-line exit
1 1/8
29
5/16
8
400
181
2000
907
092 Cheek
1 1/8
29
5/16
8
300
136
2000
907
094 Triple/365 Carbo-Cam
1 1/8
29
5/16
8
600
272
2000
907
095 Triple/365 Carbo-Cam/becket
1 1/8
29
5/16
8
600
272
2000
907
096 Upright
1 1/8
29
5/16
8
300
136
2000
907
098 Wire single
1 1/8
29
5/16
8
500
227
2000
907
099 Wire single/becket
1 1/8
29
5/16
8
500
227
2000
907
100 Double wire
1 1/8
29
5/16
8
750
340
2000
907
106 Wire thru-deck
1 1/8
29
5/16
8
500
227
2000
907
108 Wire upright
1 1/8
29
5/16
8
500
227
2000
907
109 Wire cheek
1 1/8
29
5/16
8
500
227
2000
907
113 Pivoting cheek
1 1/8
29
5/16
8
300
136
2000
907
166 Single/swivel
1 1/8
29
5/16
8
300
136
2000
907
167 Single/swivel/becket
1 1/8
29
5/16
8
300
136
2000
907
183 Wire swivel
1 1/8
29
5/16
8
500
227
2000
907
197 Exit/150 Cam-Matic (port-stbd)
1 1/8
29
5/16
8
300
136
2000
907
220 Double upright
1 1/8
29
5/16
8
400
181
2000
907
287 Thru-deck
1 1/8
29
5/16
8
300
136
2000
907
288 Wire thru-deck
1 1/8
29
5/16
8
400
181
2000
907
289 In-line exit
1 1/8
29
5/16
8
400
181
2000
907
290 Wire in-line exit
1 1/8
29
5/16
8
400
181
2000
907
291 Pivoting exit/423 Carbo-Cam
1 1/8
29
1/4
6
150
68
2000
907
299 Pivoting exit/423 Carbo-Cam/becket
1 1/8
29
1/4
6
150
68
2000
907
392 4:1 Downhaul/150 Cam-Matic
1 1/8
29
1/4
6
400
181
2000
907
                   
* Can be used as becket block
Top
.

Big Bullet Blocks: harken small sailboat blocks, harken classic blocks, harken block
Part
No.
Description
Sheave
Max Line
Safe
Working Load
Breaking
Strength
in
mm
in
mm
lb
kg
lb
kg
125 Single
1 1/2
38
3/8
10
300
136
2000
907
126 Single/becket
1 1/2
38
3/8
10
300
136
2000
907
127 Double
1 1/2
38
3/8
10
600
272
2000
907
128 Double/becket
1 1/2
38
3/8
10
600
272
2000
907
129 Triple
1 1/2
38
3/8
10
750
340
2000
907
130 Triple/becket
1 1/2
38
3/8
10
750
340
2000
907
131 Thru-deck
1 1/2
38
3/8
10
300
136
2000
907
132 Cheek
1 1/2
38
3/8
10
300
136
2000
907
134 In-line exit
1 1/2
38
3/8
10
600
272
2000
907
140 Pivoting exit/150 Cam-Matic
1 1/2
38
3/8
10
300
136
2000
907
141 Pivoting exit/365 Carbo-Cam
1 1/2
38
3/8
10
200
91
2000
907
146 Single/shackle
1 1/2
38
3/8
10
300
136
2000
907
147 Single/shackle/becket
1 1/2
38
3/8
10
300
136
2000
907
148 Traveler
1 1/2
38
3/8
10
300
136
2000
907
168 Single/swivel
1 1/2
38
3/8
10
300
136
2000
907
169 Single/swivel/becket
1 1/2
38
3/8
10
300
136
2000
907
222 Upright
1 1/2
38
3/8
10
300
136
2000
907
223 Double upright
1 1/2
38
3/8
10
600
272
2000
907
362 Single/423 Carbo-Cam/becket
1 1/2
38
1/4
6
150
68
2000
907
Top                  
.

Dinghy Blocks: harken small sailboat blocks, harken classic blocks, harken block
Part
No.
Description
Sheave
Max Line
Safe
Working Load
Breaking
Strength
in
mm
in
mm
lb
kg
lb
kg
021 Single
1 3/4
44
3/8
10
350
159
2000
907
022 Single/becket
1 3/4
44
3/8
10
350
159
2000
907
023 Single/swivel
1 3/4
44
3/8
10
350
159
2000
907
024 Single/swivel/becket
1 3/4
44
3/8
10
350
159
2000
907
025 Double
1 3/4
44
3/8
10
700
318
2000
907
026 Double/becket
1 3/4
44
3/8
10
700
318
2000
907
027 Cheek
1 3/4
44
3/8
10
350
159
2000
907
046 Thru-deck
1 3/4
44
3/8
10
350
159
2000
907
063 Traveler control
1 3/4
44
3/8
10
700
318
2000
907
Top                  
.

2.25" Blocks:  harken small sailboat blocks, harken classic blocks, harken block
Part
No.
Description
Sheave
Max Line
Safe
Working Load
Breaking
Strength
in
mm
in
mm
lb
kg
lb
kg
001 Single
2 1/4
57
7/16
12
500
227
2500
1134
002 Single/becket
2 1/4
57
7/16
12
500
227
2500
1134
003 Double
2 1/4
57
7/16
12
1000
454
3000
1361
004 Double/becket
2 1/4
57
7/16
12
1000
454
3000
1361
013 Cheek
2 1/4
57
7/16
12
500
227
2500
1134
047 Trhu-deck
2 1/4
57
7/16
12
500
227
2500
1134
048 Triple
2 1/4
57
7/16
12
1200
544
3000
1361
076 Triple/becket
2 1/4
57
7/16
12
1200
544
3000
1361
186 Single/150 Cam-Matic/becket
2 1/4
57
7/16
12
500
227
2500
1134
206 Upright lead
2 1/4
57
7/16
12
500
227
2500
1134
Top                  
.

3.00" Blocks: harken small sailboat blocks, harken classic blocks, harken block
Part
No.
Description
Sheave
Max Line
Safe
Working Load
Breaking
Strength
in
mm
in
mm
lb
kg
lb
kg
005 Single
3
76
7/16
12
750
340
2500
1134
011 Heavy-duty single
3
76
7/16
12
750
340
3000
1361
012 Heavy-duty single/becket
3
76
7/16
12
750
340
3000
1361
014 Cheek
3
76
7/16
12
750
340
2500
1134
202 Wire single
3
76
7/16
12
850
386
3000
1361
Top                  
.

Fiddle Blocks: harken fiddle blocks
Part
No.
Description
Sheave
Max Line
SWL
Breaking Strength
Use with
in
mm
in
mm
lb
lb
kg
 
   
028 Fiddle
3/1 3/4
76/44
3/8
10
750
2500
1134
2661 for 3:1
030 Fiddle/becket
3/1 3/4
76/44
3/8
10
750
2500
1134
028 for 4:1
038 Fiddle/150 Cam-Matic/becket
3/1 3/4
76/44
3/8
10
750
2500
1134
2661 for 3:1
042 Fiddle/ratchet/150 Cam-Matic/becket
3/1 3/4
76/44
3/8
10
750
2500
1134
028 for4:1
053 Little Fiddle
2 1/4/1 1/2
57/38
3/8
10
500
2000
907
002 for 3:1
054 Little Fiddle/becket
2 1/4/1 1/2
57/38
3/8
10
500
2000
907
053 for 4:1
055 Little Fiddle/ratchet
2 1/4/1 1/2
57/38
3/8
10
500
2000
907
002 for 3:1
056 Little Fiddle/ratchet/becket
2 1/4/1 1/2
57/38
3/8
10
500
2000
907
053 for 4:1
057 Little Fiddle/150 Cam-Matic
2 1/4/1 1/2
57/38
3/8
10
500
2000
907
002 for 3:1
058 Little Fiddle/150 Cam-Matic/becket
2 1/4/1 1/2
57/38
3/8
10
500
2000
907
053 for 4:1
059 Little Fiddle/ratchet/150 Cam-Matic
2 1/4/1 1/2
57/38
3/8
10
500
2000
907
002 for 3:1
060 Little Fiddle/ratchet/150 Cam-Matic/becket
2 1/4/1 1/2
57/38
3/8
10
500
2000
907
053 for 4:1
Top                  
.

Dinghy Vang Systems: harken dinghy vang system
Part
No.
Description
Length
Max sail area
Safe
Working Load
Breaking
Strength
in
mm
ft2
m2
lb
kg
lb
kg
447 System/423 Carbo-Cam
30
760
125
11.6
450
204
1200
544
455 Lower unit/423 Carbo-Cam
9
229
125
11.6
450
204
1200
544
Top
.

Two-Speed Mainsheet System: harken two mainsheet system
Part
No.
Description
Min Line Ø
Max Line Ø
Max mainsail area End-boom
Max mainsail area Mid-boom
in
mm
in
mm
ft2
m2
ft2
m2
330 2:1/4:1 Self-contained system*
5/16
8
3/8
10
150
13.9
115
10.7
331 2:1/4:1 System/swivel base*
5/16
8
3/8
10
150
13.9
115
10.7
332 3:1/6:1 Self-contained system*
5/16
8
3/8
10
240
22.3
180
16.9
383 4:1/8:1 Self-contained system*
5/16
8
3/8
10
350
32.4
275
25.5
Top                  
.

Hexaratchets : harken ratchets, hexaratches
Part
No.
Description
Sheave
Max Line
SWL
BS
Holding power w/180º wrap
Turns
in
mm
in
mm
lb
lb
50 lb (23 kg)
009 Single
3
76
7/16
12
750
2000
15:1
Clockwise
015 Cheek (stbd)
3
76
7/16
12
750
1500
15:1
Clockwise
016 Cheek (port)
3
76
7/16
12
750
1500
15:1
Counterclockwise
044 Single
3
76
7/16
12
750
2000
15:1
Counterclockwise
045 Single/becket
3
76
7/16
12
750
2000
15:1
Counterclockwise
050 Single/becket
3
76
7/16
12
750
2000
15:1
Clockwise
091 Single/150 Cam-Matic/becket
3
76
7/16
12
750
2000
15:1
Clockwise
399 Double/ratchet
3
76
7/16
12
750
2500
15:1
Clockwise/Counter
Top              
.

Little Hexaratchets: harken hexaratchet
Part
No.
Description
Sheave
Max Line
SWL
BS
Holding power w/180º wrap
Turns
in
mm
in
mm
lb
lb
50 lb (23 kg)
017 Cheek (stbd)
2 1/4
57
3/8
10
500
1000
10:1
Clockwise
018 Cheek (port)
2 1/4
57
3/8
10
500
1000
10:1
Counterclockwise
019 Single
2 1/4
57
3/8
10
500
2000
10:1
Clockwise
020 Single/becket
2 1/4
57
3/8
10
500
2000
10:1
Clockwise
041 Single/becket
2 1/4
57
3/8
10
500
2000
10:1
Counterclockwise
043 Single
2 1/4
57
3/8
10
500
2000
10:1
Counterclockwise
187 Single/150 Cam-Matic
2 1/4
57
3/8
10
500
2000
10:1
Clockwise
188 Single/150 Cam-Matic/becket
2 1/4
57
3/8
10
500
2000
10:1
Clockwise
397 Double
2 1/4
57
3/8
10
750
2500
10:1
Clockwise/Counter
398 Cross block/412 Cam-Matic
2 1/4
57
3/8
10
1000
1500
10:1
Clockwise/Counter
Top  
             
.

Hexa-Cat Bases: harken hexa cat bases, hexaratchet
Part
No.
Description
Sheave
Max Line
Length
Breaking
Strength
in
mm
in
mm
in
mm
lb
kg
170 Hexa-Cat Bae/150 Cam-Matic
3
76
7/16
12
7 14
184
3000
1361
193 Little Hexa-Cat base/150 Cam-Matic
2 1/4
57
3/8
10
5 3/4
146
2500
1134
   
Base
Safe Working Load
     
5:1
6:1
  
7:1
8:1
   
lb
kg
lb
kg
lb
kg
lb
kg
170 Hexa-Cats
1500
680
1500
680
1500
680
1500
680
193 Little Hexa-Cats
1100
499
1100
499
1250
567
1250
567
   
Top                  
.

Low-Profile Triples: harken low profile triple block
Part
No.
Description
Sheave
Max Line
SWL
Breaking strenght
Use with
in
mm
in
mm
lb
lb
kg
064 Fiddle/ratchet/150 Cam-Matic
3/1 3/4
76/44
3/8
10
750
2500
1134
076-7:1
152 Light-duty/swivel/ratchet/150 Cam-Matic
3
76
7/16
12
750
2000
907
004-5:1/153-6:1
153 Light-duty/swivel
2 1/4
57
7/16
12
750
2000
907
152-6:1
194 Light-duty/swivel/ratchet/150 Cam-Matic
2 1/4
57
7/16
12
500
2000
907
004-5:1/153-6:1
196 Ratchet/150 Cam-Matic/becket
2 1/4
57
3/8
10
1000
3000
1361
048-6:1
411 Ratchet/swivel/150 Cam-Matic
3
76
7/16
12
1500
3000
1361
2663-6:1
Top
.

Line / Wire High Strength: harken high load block, harken wire block
Part
No.
Description
Sheave
Max Line
Safe working load
Breaking strenght
in
mm
in
mm
lb
kg
lb
kg
300 Single
1
25
5/32
4
1000
454
2000
907
301 Cheek
1
25
5/32
4
1000
454
2000
907
302 Thru-deck
1
25
5/32
4
1000
454
2000
907
304 Single
1 1/2
38
3/16
5
1500
680
3000
1361
305 Cheek
1 1/2
38
3/16
5
1500
680
3000
1361
306 Thru-deck
1 1/2
38
3/16
5
1500
680
3000
1361
308 Single
2
51
1/4
6
2000
907
4000
1814
309 Cheek
2
51
1/4
6
2000
907
4000
1814
310 Thru-deck
2
51
1/4
6
2000
907
4000
1814
312 Single/becket
1
25
5/32
4
1000
454
2000
907
313 Single/becket
1 1/2
38
3/16
5
1500
680
3000
1361
314 Single/becket
2
51
1/4
6
2000
907
4000
1814
320 Ferrule head
1 1/2
38
3/16
5
1500
680
3000
1361
321 Small split backstay plate for 304
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-
-
-
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-
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322 Split backstay plate for 308
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-
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Harken Classic Blocks

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Only orders shipped to Texas are charged sales tax.

Price Matching
Buy with confidence. We do our best every day to ensure that our prices are the best you can find. If within 30 days you find a better price, we’ll refund the difference as a store credit. Read more.

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We ship to most of the countries in Europe, Caribbean South America, Asia and Oceania.

Returns & Exchanges
Customer satisfaction is our top priority and we want you to be completely satisfied with your purchase. We ensure you a quick and hassle-free return or exchange process. More.
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