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297
SHEAVE
DIAM.
MAX.
ROPE
PIN
DIAM. M.W.L. B.L. WEIGHT
SHEAVE
DIAM.
MAX.
ROPE
PIN
DIAM. M.W.L. B.L. WEIGHT
PRODUCT No.
DESCRIPTION
mm mm mm kg kg
g
in.
in.
in.
lb
lb
oz
All Purpose
RF50171HL
Upright lead block
50
12
-
800 1500 115
2
1/2
-
1760 3310 4.1
RF51140
Stand-up block, swivel head
50
12
-
750 1500 118
2
1/2
-
1650 3310 4.2
RF51500
Fiddle block, universal head
54 + 34 10
5 750 1500 167
2 1/8 + 1 5/16 3/8 3/16 1650 3310 5.9
RF51510
Fiddle block, becket, universal head
54 + 34 10
5 750 1500 176
2 1/8 + 1 5/16 3/8 3/16 1650 3310 6.2
RF51530
Fiddle block, becket, adjustable cleat, universal head
54 + 34 10
5 750 1500 318
2 1/8 + 1 5/16 3/8 3/16 1650 3310 11.2
RC72535
Single block, 25mm (1”) T-track slide
50
12
-
450 900 215
2
1/2
-
990 1980 7.6
Accessories
RF2450
Stand-up base, 51x75mm (2”x3”) base
-
-
5 500 1000 86
-
-
3/16 1100 2200 3.0
RF6170
Snap shackle head adapter
-
-
5 500 1000 49
-
-
3/16 1100 2200 1.7
RF6171
Trunnion snap shackle head adapter
-
-
5 500 1000 62
-
-
3/16 1100 2200 2.2
Fiddle blocks are ideal for fine-tune mainsheet tackles, cunninghams,
boom vangs, backstays and other control line purchase systems.
Snap shackle adapters suit single and fiddle blocks and are available in
standard and trunnion versions.
A stand-up base adapter and snap shackle adapters add functionality to
single and fiddle blocks.
Quick adjusting cleat arms require no tools to adjust and fix in desired position.
Jib lead slide with pin stop suits RC7250 25mm (1”) T-track.
Low profile stand-up block has a swivel head post to allow full
ar ticulation and rotation.
Mainsheet and halyard applications, vang and spinnaker control
lines on boats to 10m (33ft).
U.V. stabilised Acetal sheaves.
Impact modified, fibre reinforced and U.V. stabilised Nylon cheeks.
Grade 316 stainless steel bearing race, load straps and head fittings.
RF51010
Snap-in keyhole becket pin
RF51011
Becket pin with split ring
RF51500
0 RF245
RF51530
RF51510
RC72535
RF6170
RF6171
RF50171HL
RF5 11 40
2 x 5 (
)
mm 3/6”
2 x 6mm (1/4 )”
4 x 5 ( / )
mm 3 6”
Series 50
ALL PUR
PO
SE
B
LO
CK
S
