2022 Ronstan Marine Catalogue - Flipbook - Page 31
SPORTS BLOCKS
Series 50 Utility
RF51500
RF51510
29
RF51530
RF6170
RF51140
RF51171
2 x 5mm (3/16”)
2 x 6mm (1/4”)
Fiddle blocks are ideal for fine-tune mainsheet
tackles, cunninghams, boom vangs, backstays
and other control line purchase systems.
Snap shackle adapter adds functionality to single
and fiddle blocks, and suit single and fiddle blocks.
PRODUCT No.
DESCRIPTION
All Purpose
RF51140
Stand-up block, swivel head
RF51151
Cheek block, aluminium cheeks
RF51171
Upright lead block
RF51500
Fiddle block, universal head
RF51510
Fiddle block, becket, universal head
RF51530
Fiddle block, becket, adjustable cleat, universal head
Accessories
RF6170
Snap shackle head adapter
* Line load through cleat not to exceed 175kg (385lb).
RF51151
3 x 6mm (1/4”)
Quick adjusting cleat arms require no tools to
adjust and fix in desired position.
Sheaves: UV stabilised acetal.
Low profile stand-up block has a swivel head post
to allow full articulation and rotation.
Mainsheet and halyard applications, vang and
spinnaker control lines on boats to 10m (33ft).
Cheeks: Impact modified, fibre
reinforced and UV stabilised nylon.
Load straps & head fittings:
Grade 316 stainless steel bearing race.
SHEAVE
DIAM.
mm
MAX.
ROPE
mm
PIN
DIAM.
mm
M.W.L.
kg
B.L.
kg
WEIGHT
g
SHEAVE
DIAM.
in.
MAX.
ROPE
in.
PIN
DIAM.
in.
M.W.L.
lb
B.L.
lb
WEIGHT
oz
50
50
50
54 + 34
54 + 34
54 + 34
12
12
12
10
10
10
5
5
5
750
500
750
750
750
750*
1500
1000
1500
1500
1500
1500
118
85
115
167
176
318
2
2
2
2 1/8 + 1 5/16
2 1/8 + 1 5/16
2 1/8 + 1 5/16
1/2
1/2
1/2
3/8
3/8
3/8
3/16
3/16
3/16
1650
1100
1650
1650
1650
1650*
3310
2200
3310
3310
3310
3310
4.2
3.0
4.1
5.9
6.2
11.2
-
-
5
500
1000
49
-
-
3/16
1100
2200
1.7