Blocks - Single

Harken Aluminum Mastbase Block, 44mm Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. Part Number Height Length Sheave Dia. Width Weight Max Line Dia. Max...

Harken 75mm Ratchet Block - Swivel Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing Part Number Sheave Dia. Length Weight Max. Line Dia. Max. Working...

Harken 75mm Block - Swivel Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy...

Lewmar HTX Single with Becket Block. Suitable for cruising through to performance yachts, the HTX range has been designed and manufactured to use a minimal number of alloy, stainless steel and plastic reinforced parts to provide enhanced...

57mm Ball Bearing Block with Cam Cleat – Port Lever for Ratchet or Free Running Fixed or Swivel head Single Sheave – Hardcoat Anodised Aluminium Part Number Length Becket Breaking Load Max Line...

Harken 57mm Ratchet Block - Swivel, Becket Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Part Number Sheave Dia. Length Weight Max. Line Dia. Max. Working...

Heavy duty, 304 grade stainless steel trawl blocks with single, brass bushed stainless sheave and swivelling hook head. Cast hook is fitted with a spring loaded retainer gate. Removable sheave. Heavy duty, cast load straps. Part...

Harken Hexaratchet Block 2.25" - Swivel, Starboard Hexaratchets® grip loaded sheets, yet allow sailors to ease and trim quickly and with complete control. A switch on the side engages and disengages the ratchet mechanism. Use the 043 or 044...

Harken Heavy-Duty Swivel Block, 3" The 3.00 (76 mm) blocks are compact and lightweight, with fast trim and release under high or low loads. Perfect for dinghies, scows, beachcats and iceboats, as well as small offshore racers and cruisers...

Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads...

Harken 57mm T2 Soft-Attach Ratchamatic Block - 1.5x Grip Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their...

Harken 57mm T2 Soft-Attach Ratchamatic Block - 2x Grip   Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune...

Harken 57mm T2™ Soft-Attach Ratchamatic® Block - Red Sheave The patented T2 Ratchamatic is Harken’s newest block to feature the T2 line’s styling and soft-attachment system. The weight of this high-strength block is only a few...

Features: Up to 20:1 holding power Smooth easing of sheets High performance cleating Automatic ratchet block Materials: Sheave: Anodised Aluminium Ball Bearings: High compression strength carbon black Acetal Frame/Cheeks: Toughened, glass...

Harken 57mm Ratchet Block - Swivel, 1.5x Grip Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their set-ups in...

Harken 57mm Ratchet Block - Swivel, 2x Grip Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their set-ups in...

Harken 57mm Ratchet Block - Swivel, Red Sheave Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Part Number Sheave Dia. Length Weight Max. Line Dia. Max...

Harken 40mm Pivoting Lead Block - Cam-Matic® Cleat High-strength pivoting lead blocks with cams are used for halyard controls on larger keelboats and as “headknockers” on dinghies and beachcats for sheeting directly from the boom...

Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads...

Wichard Stainless Steel Single Block - Aluminium Sheave 70 - Swivel - For 7mm Wire Complete range of stainless steel blocks for dinghies Lightweight, reliable and good performance Available in a wide range of size and fastening...