Blocks - Single

Ronstan Series 40 Ball Bearing Exit Block 40mm Acetal Sheave, Anodised Aluminium Housing, Requires 2x 6mm (1/4") Fasteners Exit Blocks minimise friction in lines passing through the deck or exiting masts and booms. The RF45711 exit block...

Ronstsn Series 40 Ball Bearing Loop Top Block, Single Single alloy sheave with removable clevis pin loop top Features Low friction Torlon® ball bearing system. Lightweight. Cheek cut-outs for easy bearing maintenance. Oversize...

Ronstan Series 50 High Load Block, Single Single, universal head Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire. Captive Lock™ universal head can...

Ronstan Upright Lead Block, Wide 19mm Sheave Suitable for rope up to 8mm. The external tabs can be formed to fit the spar profile before fastening Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or...

Ronstan Snatch Block Acetal Sheave 133mm LOA Single, trunnion snap shackle head Trunnion snap shackle provides the same swivel action and offers additional articulation from side to side Spare Parts; RF6161 Replacement Plunger Pin Kit. Temporary...

Ronstan Soft Attachment Snatch Block, 60mm No Soft Shackle High load soft attachment snatch block with no Dyneema® loop provided. The modern snatch block – Ronstan’s SA Snatch Blocks provide the highest load ratings for their sheave...

Ronstan Snatch Block Acetal Sheave 139mm LOA Single, swivel snap shackle head Spare Parts:  RF6160 Replacement Plunger Pin Kit Temporary leads for sheets and reefing on boats up to 12m (40ft). Spare or replacement block for geneal use on larger...

Ronstan 6-1 & 3-1 Two-Speed Mainsheet Bottom Blocks Only Bottom blocks for RF72700 two-speed system   Mainsheets on sportsboats and keelboats to 12m (40')Max. mainsail area, END boom sheeting = 38sq m (409 sq ft). Max. mainsail area, MID...

Ronstan Series 75 Single Industrial Pulley Block with Becket and Cleat Single block with 75mm (3") sheave, becket, cleat with 30° cleating angle, swivel shackle head and black powder coated 316 stainless steel side plates...

Ronstan Block Single 75mm Sheave Becket Swivel Clevis Pin Part Number RON-RZ1703C

Ronstan Block Single 75mm Sheave Swivel Head Clevis Pin Part Number RON-RZ1700C

Ronstan Series 75 Single Sheave Industrial Pulley Block with Becket Single block with 75mm (3") sheave, becket, swivel shackle head and black powder coated 316 stainless steel side plates. Features Load rated. Fully articulating...

Ronstan Series 75 Single Sheave Industrial Pulley Block with Bolt Head Single block with 75mm (3") sheave, bolt head and black powder coated 316 stainless steel side plates. Features Load rated. Durable, low friction acetal polymer...

Ronstan Series 60 Single Industrial Pulley Block with Becket and Angled Cleat Single block with 60mm (2 3/8") sheave, becket, cleat with 60° cleating angle, swivel shackle head and black powder coated 316 stainless steel side plates...

Ronstan Series 75 Single Aluminium Sheave Industrial Pulley Block Single block with 75mm (3") aluminium sheave with brass bearing and swivel shackle head. Suitable for use with wire or rope. Black powder coated 316 stainless steel side plates...

Ronstan Series 75 Single Sheave Industrial Pulley Block Single block with 75mm (3") sheave, swivel shackle head and black powder coated 316 stainless steel side plates. Features Load rated. Fully articulating head/attachment...

Ronstan Series 60 Single Industrial Pulley Block with Becket and Cleat Single block with 60mm (2 3/8") sheave, becket, cleat with 30° cleating angle, swivel shackle head and black powder coated 316 stainless steel side plates...

Ronstan Series 60 Single Industrial Pulley Block with Bolt Head & Becket Single block with 60mm (2 3/8") sheave, bolt head, becket and black powder coated 316 stainless steel side plates. Features Load rated Durable, low friction...

Ronstan Series 60 Single Industrial Pulley Block with Bolt Head Single block with 60mm (2 3/8") sheave, bolt head and black powder coated 316 stainless steel side plates. Features  Load rated. Durable, low friction acetal polymer sheave...

Ronstan Series 60 Single Industrial Pulley Block Single block with 60mm (2 3/8") sheave, swivel shackle head and black powder coated 316 stainless steel side plates Series 60 Single Industrial Pulley Block Single block with 60mm (2 3/8") sheave,...