Skip to product information
1 of 1

Ronstan

Ronstan Series 40 All Purpose Block - Triple - Swivel Head

Ronstan Series 40 All Purpose Block - Triple - Swivel Head

SKU:OM-RONSTAN-SERIES40ALL-RF41300

Regular price $84.30
Regular price $99.18 Sale price $84.30
Sale
FREE Standard Shipping On every U.S. order — no minimum. Faster delivery options are available at checkout for qualifying orders.

Low stock: 1 left

Quantity
Free standard shipping · every U.S. order, no minimum
Sourced from authorized U.S. distributors
Genuine product · full manufacturer warranty
Secure checkout via Shopify Payments
View full details

Overview

For cruising and racing sailors, the Ronstan Series 40 triple swivel-head block handles sheet, halyard and control-line duties. Its self-lubricating sheaves accommodate both changing loads and sustained tension with little maintenance.

Key features

  • Self-lubricating sheaves reduce maintenance demands.
  • A slotted shackle pin helps keep lines from fouling.
  • UV-stabilised sheaves and impact-resistant cheeks support durability aboard.
  • Acetal sheaves run on polished stainless steel races to handle dynamic and static loads.

Specifications

  • Series: 40 All Purpose
  • Configuration: Triple block
  • Head: Swivel with two-way head post
  • Sheave material: UV-stabilised acetal polymer
  • Cheek material: Impact- and UV-resistant, fibre-reinforced nylon
  • Bearing race material: Grade 316 stainless steel
  • Load strap and head fitting material: Grade 316 stainless steel

Good to know

Listed applications include mainsheet, halyard, vang and spinnaker control lines on off-the-beach catamarans, one-design classes and sportsboats up to 8m (26ft). Listed spare parts are the RF41010 replacement becket pin and RF150 shackle.

Specifications

BrandRonstan
Manufacturer part #RF41300
UPC9316800557424
Boxed dimensions4 x 3 x 2 in
Shipping weight0.4 lb
Country of originAUSTRALIA

Shipping & returns

Free standard shipping

Standard shipping is free on every U.S. order — no minimum. Need it faster? Faster delivery options are available at checkout for qualifying orders. In-stock orders ship quickly with tracking; oversized and freight items may ship separately and can take a little longer. International rates are calculated at checkout.

30-day returns

Request a return within 30 days of delivery. Authorized returns are subject to a 15% restocking fee. Return shipping is paid by the buyer; items must be new and in original packaging. See our refund policy.

Genuine products

We source from authorized U.S. distributors. Every product is new, genuine and covered by the manufacturer warranty.

Genuine products

Genuine products, full warranty.

Fast, tracked shipping

On in-stock marine gear.

Expert support

Talk to people who know the gear.

Secure checkout

Protected payments via Shopify.