5/16" (8mm) Ronstan Single, Ball Bearing, Lead Block

Features: Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The...

5/16" (8mm) Ronstan Single, loop head, Ball Bearing Block

Features: Low friction 2-stage ball bearing system provides consistent performance over the full working load range. High static and dynamic load capacity. Light weight Versatile head fittings Sheaves running on Acetal or Torlon ball bearings provide...

5/16" (8mm) Ronstan Fiddle, V-jam Cleat, Tube Rivet Head Utility Block

Features: Lightweight durable construction Economical Maintenance free Allows fast, sure cleating of control lines. 316 Stainless steel cheeks and UV stabilised Acetal sheaves ensure a long service life with virtually no maintenance. Used for: Vang,...

5/16" (8mm) Ronstan Single, Tube Rivet Utility Block

316 Stainless steel cheeks and UV stabilised Acetal sheaves ensure a long service life with virtually no maintenance. Used for: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters etc on larger...

5/16" (8mm) Ronstan Series 30 Ball Bearing Cheek Block

Features: Lightweight Highest working load in its class Secure, versatile and secure attachement Base suits curved mounting base Materials: Sheave: High compression strength carbon black Acetal Ball Bearings: High compression strength...

5/16" (8mm) Ronstan Single, swivel shackle head, Ball Bearing Block

Features: Low friction 2-stage ball bearing system provides consistent performance over the full working load range. High static and dynamic load capacity. Light weight Versatile head fittings Sheaves running on Acetal or Torlon® ball...

5/16" (8mm) Ronstan Triple, loop head Utility Block

316 Stainless steel cheeks and U.V. stabilised Acetal sheaves ensure a long service life with virtually no maintenance. Features: Lightweight durable constructionEconomicalMaintenance free Used for: Vang, cunningham and trapeze retriever systems on...

5/16" (8mm) Ronstan Curved Base Utility Cheek Block

Features: Lightweight durable construction Economical Maintenance free 316 Stainless steel cheeks and U.V. stabilised Acetal sheaves ensure a long service life with virtually no maintenance. Used for: Vang, cunningham and trapeze retriever systems on...

5/16" (8mm) Ronstan Small Mainsheet Swivel Cleat Base

FEATURES Ball bearings support the cleat arm. An integral stop prevents over rotation, but can be removed to allow full 360° rotation. The cleating angle can be set in one of two positions - use the included riser kit for a higher cleating angle. A...

5/16" (8mm) Ronstan Single, Becket, Tube Rivet Head Utility Block

Features: Lightweight durable construction Economical Maintenance free 316 Stainless steel cheeks and UV stabilised Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets accept fixing screws, shackles or can be used as...

5/16" (8mm) Ronstan Ball Bearing Orbit Block

Features: Lightweight Highest working load in its class Secure, versatile and secure attachement Low profile and compact RF35101 accepts RF1850S shackle in both orientations to create a conventional loop top block. Self-lubricating Nylatron®...

5/16" (8mm) Ronstan Single, Becket, loop head Utility Block

316 Stainless steel cheeks and U.V. stabilised Acetal sheaves ensure a long service life with virtually no maintenance. Has a becket for extra purchase. Features: Lightweight durable construction Economical Maintenance free Used for: Vang, cunningham...

3/8" (9mm) Ronstan Single, ferrule eye head Utility Block

316 Stainless steel cheeks and U.V. stabilised Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase...

3/8" (10mm) Ronstan Single, Swivel Head, Ratchet Block

Features: Up to 20:1 holding power Smooth easing of sheets High performance cleating Swivel shackle head for unlimited block rotation. Stainless steel shackle head and compatibility with sharp fixing points. Automatic & manual ratchet block Used...

7/16" (10mm) Ronstan Single, Stand-up Block

Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Captive Lock universal head Materials: U.V. stabilised Acetal sheaves Impact and U.V. resistant, fibre reinforced Nylon cheeks Grade 316 stainless...

7/16" (10mm) Ronstan Double, Becket, 2-Axis Shackle Head Block

Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Slotted pin shackle eliminates fouled lines Two way head post Snap fit removable becket pin Materials: U.V. stabilised Acetal sheaves Impact and U.V...

7/16" (10mm) Ronstan Single, becket, universal head Block

Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Captive Lock universal head Slotted pin shackle eliminates fouled lines Snap fit removable becket pin Materials: U.V. stabilised Acetal...

7/16" (10mm) Ronstan Single Loop Head Block

Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Materials: U.V. stabilised Acetal sheaves Impact and U.V. resistant, fibre reinforced Nylon cheeks Grade 316 stainless steel bearing race Grade 316...

7/16" (10mm) Ronstan Single Universal Head Block

Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Materials: U.V. stabilised Acetal sheaves Impact and U.V...

7/16" (10mm) Ronstan Double, 2-Axis Shackle Head Block

Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Slotted pin shackle eliminates fouled lines Two way head post Materials: U.V. stabilised Acetal sheaves Impact and U.V. resistant, fibre reinforced...