Blocks

SeaSure 25mm Double Block w/Shackle

25mm Double Block with ShackleThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...

Ronstan Series 40 Orbit BB Double Block w/Becket & Swivel Shackle

Series 40 Orbit BB Double Block with Becket & Swivel ShackleThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest...

Ronstan Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head

Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle HeadAutomatic RatchetWith automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and...

Ronstan Series 30 Ball Bearing Block - Single - Loop Top

Series 30 Ball Bearing Block - Single - Loop TopFeatures:Low friction 2-stage ball bearing system provides consistent performance over the full working load rangeHigh static and dynamic load capacityLight weightVersatile head fittingsSheaves running on...

Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head

Series 15 Ball Bearing Utility Block - Single Block, Loop HeadFeatures:Smallest and lightest ball bearing block availablePrecision molded acetal sheave running on stainless steel ball bearings provide high performance & low frictionSingle loop head...

Ronstan Series 50 All Purpose Cheek Block - Single

Series 50 All Purpose Cheek Block - SingleFeatures:Exceptionally high working loadsLow maintenance, long service lifeSelf-lubricating Acetal polymer sheave ensures low friction and extreme durabilityAll purpose (AP) blocks are a great all around solution...

Harken 57mm Carbo Air Fiddle Block w/Swivel & Becket

57mm Carbo Air Fiddle Block with Swivel & BecketLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads...

Schaefer Single Aluminum Block - 60mm Sheave

Single Aluminum Block - 60mm SheaveDelrin™ sheave ensures smooth operation and a high safe working load. Swivel head may be locked in place to eliminate twisting. Specifications:Sheave Diameter 2 3/8" (60mm)Thickness 1 3/32" (28mm)Width 2 1/2"...

Ronstan Series 40 Orbit BB Triple Block w/Becket & Swivel Shackle

Series 40 Orbit BB Triple Block with Becket & Swivel ShackleThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest...

Harken 29mm Triple Carbo Air Block w/Swivel

29mm Triple Carbo Air Block with SwivelLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy...

Ronstan Series 40 Orbit BB Quin Block w/Becket & Swivel Shackle

Series 40 Orbit BB Quin Block with Becket & Swivel ShackleThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest...

Ronstan Series 40 Orbit BB Triple Block w/Becket, Cleat & Swivel Shackle

Series 40 Orbit BB Triple Block with Becket, Cleat & Swivel ShackleThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the...