Brand: Ronstan
Ronstan Series 20 Ball Bearing Upright Lead Block, RF20171
Ronstan Series 20 Ball Bearing Upright Lead Block, RF20171
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The Ronstan Series 20 Ball Bearing Upright Lead Block is a low-profile solution designed for guiding halyards and other sail control lines to cleats or jammers. It is frequently used for halyard management at the mast base.
- Sheave diameter: 20mm (3/4")
- Maximum rope diameter: 6mm (1/4")
- Fastener diameter: 4mm (5/32")
- Maximum working load: 250kg (550 lbs)
- Breaking load: 550kg (1,210 lbs)
- Weight: 18g (0.6 oz)
- Precision-molded Acetal sheaves
- Stainless steel ball bearings and load housing
These blocks feature UV-stabilized materials for reliable performance in marine environments.
Product facts
- CT SKU
- CT-118354
- UPC / GTIN
- 9316800255597
- Package weight
- 0.1 lb
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
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Shipping & returns
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Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
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Need help choosing?
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