![Ronstan Series 40 All Purpose Block - Single Upright Lead [RF41171]](http://roughseasmarine.com/cdn/shop/files/70602XL_650x.jpg?v=1753810066)
Product Details
Series 40 All Purpose Block - Single Upright Lead
Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.
Applications:
- Typically used for halyards at the mast base.
Materials:
- UV stabilised acetal sheave
- Grade 316 stainless steel load housing
![ANDERSEN 40ST Compact Below Deck Electric FS Winch Variable Speed - 12V [RA2040014100] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/76496XL_{width}x.jpg?v=1677099746)
![ANDERSEN Below Deck Variable Speed Compact Motor Electric Conversion Kit - 12V f/34ST Winch [RA2034214100] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/76286XL_{width}x.jpg?v=1677099666)
![ANDERSEN 46 ST FS - 2-Speed Self-Tailing Manual Winch - Full Stainless Steel [RA2046010000] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55006XL_{width}x.jpg?v=1677092386)
![Lewmar 45ST EVO Self Tailing Winch Alloy - Black [49545055] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94242XL_{width}x.jpg?v=1677107998)
![Lewmar 45ST EVO Self Tailing Winch Alloy - Grey [49545057] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94244XL_{width}x.jpg?v=1677107998)
![Lewmar 40ST EVO Self Tailing Winch Alloy - Grey [49540057] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94241XL_{width}x.jpg?v=1677107998)
![ANDERSEN 40 ST FS - 2-Speed Self-Tailing Manual Winch - Full Stainless Steel [RA2040010000] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55005XL_{width}x.jpg?v=1677092384)
