Skip to content
Select Category
Casual (2)
Pins (15)
Tenders (10)
Fish Finders (3)
Eye Nuts (1)
Blocks (740)
Hatch & Inspection Covers (64)
Bailers - Manual (4)
Winches (22)
Binoculars (2)
GPSs (2)
Levers (3)
Cabin (69)
Drain Plugs (4)
Watches (3)
Anchors (27)
Clothing (72)
Antifouling (10)
Batteries (4)
Emergency Equipment (45)
Buoyancy Aids (21)
Boots - Deck (8)
Compasses (33)
Furling Fittings (11)
Flares (5)
Cookers (11)
Buoys (24)
Genoa Accessories (21)
Thinners (9)
Depth Sounders (7)
Padlocks (8)
Hose (6)
Hooks (90)
Handheld (8)
Oils (7)
Drysuits (20)
Battens (4)
Furling & Reefing (27)
Tenders & Accessories (45)
Blocks - Ball Bearing - Double (52)
Grease & Lubricants (12)
Air Pumps (6)
Weather Receivers (5)
Bow Shackles (4)
Control Cables (15)
Brackets (3)
Fibreglass (8)
Eye Bolts (24)
Boat Covers (19)
Camcleats (75)
Anodes (84)
Rope (75)
Deck Hardware (1903)
Cleaners (34)
Dan Buoys (3)
Tape (44)
Oars (35)
U-Bolts (11)
Fire Safety (10)
Fish Finder Accessories (1)
Rudder Fittings (130)
Showers (4)
Speed and Distance Logs (4)
Life Jacket Accessories (12)
Lifejackets & Buoyancy Aids (39)
Paints (13)
Boots - All Purpose (8)
GPS Accessories (9)
Fillers & Sealants (18)
Depth Sounders (10)
Coastal (11)
Winch Handles (8)
Chain (26)
Varnishes (10)
Boat Ladders (18)
Fenders & Sox (85)
Clothing & Footwear (152)
Electrics (188)
Blocks - Ball Bearing - Single (126)
Knives (16)
Buckles (14)
Clocks (10)
Rope Accessories (68)
Trailer Accessories (20)
Hatches & Ventilation (75)
Removers (5)
Depth Sounder Accessories (3)
Footwear (32)
Oil (19)
Bailers - Self Bailing (13)
Base Station (1)
Forestay Levers (2)
Flags (114)
Scrubbing Brushes & Pads (7)
Drysuit Accessories (3)
Mast, Spars & Sails (125)
Vents (11)
Navtex Recievers (4)
Jib Reefing (11)
Hose Clips (2)
Keelband (1)
Battery Accessories (36)
Control Cables (15)
Boom Fittings (13)
Allen (559)
Fenders & Buoys (109)
Rings (15)
Compass Accessories (2)
Tracks (47)
D-Shackles (12)
Bilge Pumps (36)
Cleats (163)
Spring Clips (3)
Fuel Additives (5)
First Aid Kits (8)
Boat Paints & Solvents (48)
Bulbs (15)
Bungs (12)
Winter (3)
Ropes & Accessories (138)
Resins & Epoxy (23)
Harnesses (7)
Primers & Undercoats (10)
Winch Accessories (19)
Horns & Whistles (8)
Flag Sockets (4)
Cleats - With Leads (21)
Aqua Signal (37)
Steering Wheels (6)
Sinks (7)
Slides (27)
Chain Accessories (16)
Foul Weather (6)
Luggage (6)
Rigging Boots (2)
S/D Log Accessories (2)
Straps (11)
Fish Finders (4)
Deck Shoes (10)
Tools (12)
Wind Indicators (20)
Reefing Accessories (5)
Lights (43)
Nuts (5)
Buoyancy Bags (15)
Radios Accessories (2)
Marine Hose (8)
Snap Shackles (20)
Pins & Rings (30)
Kicking Straps (2)
Navigation Lights (71)
Deck Hardware & Chandlery (2460)
Blocks - Ball Bearing - Triple (49)
Bilge Pump Accessories (39)
Anchoring & Mooring (67)
Bungs & Bailers (29)
Fuses (7)
General Pumps (15)
Rivets (2)
Floats (2)
Other Adhesives (13)
Flag Accessories (17)
Kicking Strap Fittings (10)
Summer (15)
Waterproof Storage (11)
Radar Receivers (2)
Cleaning (41)
Signalling (139)
Bushes (28)
Slippers (4)
Rigging Links (6)
Steering Cables & Systems (26)
Navigation Accessories (27)
Electronics & Navigation (284)
Engine Accessories (192)
Cleat Accessories (63)
Aquafax (228)
Sail & Rig Control (379)
Thinners & Solvents (14)
Wind Indicator Accessories (2)
GPSs (11)
Refrigeration (5)
Kayaks - Accessories (7)
Blocks - Double (55)
Fuel Tanks & Lines (46)
Antennas (30)
Twisted Shackles (2)
Rigging & Accessories (206)
Plumbing (76)
Inshore (7)
Lifebuoys (7)
Toilets (8)
Compensators (1)
Shackle Accessories (19)
Cleats & Fairleads (336)
Fixings (73)
Trailers & Boat Covers (48)
Fixings - Miscellaneous (37)
Sanitation Pumps (2)
Deck Plugs (4)
Skin Fittings (33)
Mast Fittings (34)
Life Rafts (4)
Other (4)
Rashguards (4)
Dry Suits (23)
Offshore (10)
Miscellaneous (45)
Brushes (2)
Pumps (123)
Blocks - Fiddle Blocks - Single (66)
Electrics, Plumbing & Gas (454)
Rigging Screws (26)
Barometers (7)
Snorkelling (1)
Radar Reflectors (11)
Fairleads (94)
Antenna Accessories (43)
Attwood (9)
Radar & Plotters (19)
Kill Cords (8)
Storage (8)
Radios (84)
Rescue & Safety Lines (8)
Rigging Tools (63)
Sealants & Resins (53)
Maintenance (404)
Wetsuits (21)
Fuse Boxes and Holders (10)
Toilet Accessories (10)
Pump Accessories (35)
Blocks - Ratchet Blocks (34)
Screws & Studs (10)
Propellers (22)
Bollards (11)
Deck Filler (13)
Sail & Cover Accessories (9)
Rashguards (4)
Water Ski Accessories (4)
Rigging Links (6)
Swivel Connectors (6)
Washers (2)
Wood Care (16)
Thermal (11)
Generators (2)
Valves (9)
Blocks - Single (240)
Weather (38)
Spark Plugs (33)
Deck Flooring & Pads (2)
Accessories (5)
Fun and Leisure Misc (53)
Bainbridge (433)
Sails - Miscellaneous (23)
Rescue & Safety (231)
Splicing & Whipping (20)
Deck Organisers + Clutches (18)
Wing Nuts (3)
Water Filtering and Purification (3)
Oil & Lubricants (29)
Stemheads (9)
Inverters (3)
Tenders & Mooring (472)
Blocks - Through Deck - Single (35)
Spinnaker Accessories (25)
Shear Pins (10)
Navigation (131)
Hoods (4)
Gloves (10)
Switches (12)
Maintenance Equipment (64)
Stay Adjusters (11)
Fun / Leisure (64)
Eye Plates (24)
Barrus (8)
Blocks - Through Deck - Double (16)
Tools (10)
Stoppers (11)
Miscellaneous (5)
Manufacturers & Distributors (4412)
Miscellaneous (104)
Thimbles (29)
Accessories (42)
Eyes (40)
Barton (497)
Blocks - Triple (36)
Tell Tails (3)
Blocks With Cleats (17)
Blue Sea Systems (33)
Eye Bolts & U Bolts (35)
Wire (48)
Blocks - Accessories (64)
Hinges (23)
Hooks & Clips (93)
Clamcleat (59)
Latches & Catches (12)
Crewsaver (5)
Mainsheet Fittings (20)
Cobra (6)
Rails and Netting (17)
Shackles & Swivels (68)
Dubarry (7)
Springs (10)
Stanchion (11)
Dutton-Lainson (21)
Eagle (2)
Steering & Rudder (177)
Tiller Extensions & Joints (46)
Flag (3)
Tracks & Cars (91)
Gill (8)
Toe Strap Accessories (10)
Trapeze (18)
Winches & Handles (49)
Glomex (28)
Gul (73)
Harken (87)
Hawk Marine (12)
Henri Lloyd (11)
Holt (456)
Humminbird (2)
Index Marine (16)
International Paints (51)
Isotherm (1)
Jabsco (29)
Jubilee (3)
Lalizas (25)
Lewmar (28)
Lowrance (2)
Quick Silver (15)
Marathon (655)
MarinePool (5)
Marlow/Kingfisher (82)
Musto (20)
NASA (30)
Nauticalia (13)
Nuova Rade (22)
Optimum Time (2)
Perko (37)
Plastimo (813)
PolyMarine (7)
Pro Boat (161)
RM (154)
Ronstan (90)
Rule (27)
RWO (345)
Sea sure (113)
Silva (4)
Sola Wetsuits (11)
Sowester (3)
Spinlock (14)
Starbrite (41)
Sterling Power Products (10)
StowAway (32)
Teleflex (22)
Trem (3)
Typhoon International (3)
Unipart Marine (480)
XM Yachting (191)
Vetus (11)
Whale (43)
18
£
1,283.88
×
Horseshoe Lifebuoy (Buoy only) 12061
2 ×
£
64.13
×
Battery Master Switch 17540
1 ×
£
39.77
×
Wooden Oar - 2.40m 16552
1 ×
£
71.81
×
SeaStar Solutions Mercury / Mariner 3600 TFXtreme Cable - 9ft (2.74m)
2 ×
£
89.24
×
Inspection Hatch Complete With O Ring Seal - Black - 150mm (6")RWO
1 ×
£
18.62
×
Wooden Oar - 1.65m 16547
1 ×
£
54.08
×
SeaStar Solutions Flexible Gaiter - All Steering Cables
1 ×
£
16.97
×
Harken Carbo ratchet Block - 57mm - 2135
1 ×
£
88.60
×
Wooden Plugs 10103
2 ×
£
14.10
×
Wooden Oar - 1.95m 16549
1 ×
£
61.85
×
Wooden Oar - 2.25m 16551
1 ×
£
67.87
×
NASA Cruiser Compass
1 ×
£
177.87
×
SeaStar Solutions Remote Control Harness - 30m
1 ×
£
269.98
×
Steering Cable for Safe-T QC, NFB Safe T II NFB4.2 & Big T - 8.25m
1 ×
£
49.84
×
Stanchion Socket -
1 ×
£
31.68
Sub Total:
£
1,283.88
Cart
Checkout
Pivoting Lead Block – RF20174
Home
 > 
Deck Hardware & Chandlery
>
Deck Hardware
>
Blocks
>
Blocks - Single
Pivoting Lead Block – RF20174
£
41.50
Pivoting Lead Block – RF20174
Pivoting Lead Block - RF20174 quantity
Add to basket
SKU:
RMID437
Categories:
Blocks - Single
,
Ronstan
Description
Additional information
Description
Ball Bearing Pivoting Lead Block
Sheave Diameter: 20mm (3/4″)
Maximum Rope: 6mm (1/4″)
Maximum Working Load: 250kg (550lb)
Breaking Load: 550kg (1210lb)
Weight: 30g (1.1oz)
Additional information
Weight
0.03 kg
Ronstan
RF20174
Related products
Single Fixed Eye Block – Size 7 B07110
£
49.80
Add to basket
Ball Bearing Single Swivel Block – Size 2 B12130
£
33.47
Add to basket
Size 4 Stand Up Block B04170
£
83.94
Add to basket
Stand Up Block – Size 3 B13170
£
79.32
Add to basket