Brand: Ronstan
Ronstan Series 20 Ball Bearing Upright Lead Block, RF20171
Ronstan Series 20 Ball Bearing Upright Lead Block, RF20171
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About this product
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.
- Secure checkout
- 21-day return requests
- Free standard shipping $100+
Product facts
- CT SKU
- CT-118354
- Model / MPN
- RF20171
- UPC / GTIN
- 9316800255597
- Package dimensions (H × W × L)
- 1" X 2" X 3"
- Package weight
- 0.1 lb
- Country of origin
- ID
Specifications
- Type
- Ronstan Series 20 Ball Bearing Block - Upright Lead
Shipping & returns
Shipping & returns
Request an eligible return within 21 calendar days after delivery. Every physical return requires written approval and an RMA number and must be shipped within five business days after the RMA is issued. The customer pays return shipping for an ordinary return. Tug & Tow provides prepaid return shipping for a verified damaged, defective, short, or incorrect shipment. We do not charge a restocking fee. See Shipping & Returns for eligibility, exclusions, and details.
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.
Need help choosing?
Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
