S29 Ronstan screw shackle block

⚓ Robust: AISI 316 stainless steel for corrosion resistance.
💪 Performing: breaking load of 900 daN and max working load of 300 daN.
⚙️ Optimized: 30 mm sheave for rope up to 8 mm.
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S29 RONSTAN SCREW-ON PULLEY: ROBUST AND RELIABLE BOAT FITTINGS
The S29 Ronstan screw-on pulley is an essential fitting for optimizing the operation of your maneuvers on board. Designed for versatile use, it facilitates the guiding of ropes and improves the efficiency of your sail adjustments, while guaranteeing optimal resistance.
UNMATCHED PERFORMANCE AND DURABILITY
Made of AISI 316 stainless steel, this Ronstan screw-on pulley offers exceptional corrosion resistance, even in the most demanding marine environments. Its robust design allows it to withstand a breaking load of 900 daN and a maximum working load of 300 daN, thus ensuring increased safety during your navigations. The sheave diameter of 30 mm is optimized for a maximum rope diameter of 8 mm, offering an excellent compromise between performance and handling.
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Technical specifications
- Made of AISI 316 stainless steel.
- Breaking strength: 900 daN.
- Sheave diameter: 30 mm.
- Rope: accepts a maximum diameter of 8 mm.
- Maximum working load: 300 daN.
- Number of sheaves: 1.
- Model without strap.
- Without cam system.
- No integrated ratchet.
- Does not have a swivel.
- Type: pulley to be fixed.
- Ronstan Reference: RF185
























