My Account
Shopping Cart

Ronstan RF418 Single Wire Block Tubular Rivet Eye 1" Sheave 1/8" Max Wire

Manufacturer

Ronstan

<h3>Ronstan: Precision Sailing Hardware Built for Every Sailor</h3><p><strong>Ronstan</strong> is one of the most respected names in sailboat hardware — and with good reason. <a href="/11561-ronstan">Ronstan</a> traces its roots back to 1953, when two Australian sailors, Ron Allatt and Stan Lenepveu, founded Ronstan Marine Equipment Pty Ltd in Melbourne, Australia. What started as a passion project supplying handcrafted yacht fittings to their local sailing club gradually grew into a global enterprise recognized for engineering excellence and real-world performance.</p><p>Today, Ronstan is headquartered in Braeside, Victoria, Australia, with international offices in the United States and Denmark, and production facilities across three continents. The brand distributes to more than 40 countries and handles upwards of 4.9 million units out of its Melbourne facility every year. In November 2023, Ronstan joined Groupe Wichard, further cementing its place among the world&apos;s most influential marine hardware groups.</p><h3>Engineering That Performs On the Water</h3><p>What sets Ronstan apart from generic marine suppliers is its deep commitment to innovation and in-house manufacturing capability. Ronstan&apos;s engineering teams — spread across Australia, the United Kingdom, and Denmark — draw on diverse sailing traditions to develop products that meet the demands of wildly different markets: from club dinghy racers to offshore bluewater cruisers. The brand&apos;s catalog spans blocks, winches, travelers, furling systems, batten systems, stainless steel rigging hardware, and a full suite of deck gear. Ronstan is also the official hardware supplier to the Australian Sailing Team.</p><p>The brand&apos;s in-house manufacturing includes precision CNC machining of aluminum, brass, and stainless steel, as well as advanced plastic injection molding using high-performance engineering polymers — including composites reinforced with up to 60% long-strand glass and carbon fiber. This vertical integration means Ronstan controls quality from design to delivery.</p><h3>Core Product Categories</h3><p>Three categories stand out as workhorses of the Ronstan lineup. <a href="/11561-ronstan-fairleads-200387">Ronstan Fairleads</a> are purpose-designed to guide, contain, and correct the lead angle of control lines across a range of deck configurations — a deceptively simple piece of hardware that plays a critical role in clean, friction-free sail handling. For securing lines under load, <a href="/11561-ronstan-cleats-200268">Ronstan Cleats</a> offer a comprehensive range spanning jam cleats, vee cleats, and the brand&apos;s well-known C-Cleat&trade; and T-Cleat&trade; cam cleat families, each engineered for reliable cleating and easy release in all conditions. Completing the rigging equation, <a href="/11561-ronstan-shackles-200937">Ronstan Shackles</a> — including the innovative Triggersnaps&trade; snap shackle range — are individually proof-load tested and designed for intuitive one-handed operation, making them a trusted choice for racers and cruisers alike.</p><h3>From Dinghies to Maxis</h3><p>One of Ronstan&apos;s most distinctive qualities is its breadth. The same brand that equips Olympic-class dinghies also supplies hardware to some of the largest and fastest offshore racing yachts in the world. Whether you&apos;re outfitting a small club boat or a serious offshore campaigner, Ronstan&apos;s catalog has a solution engineered to the right weight, load rating, and finish for the task at hand.</p>

Part Number

RF418
09/13/2036 6:45 AM
Sale Price

$19.01

4 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Ronstan RF418 is a single wire block featuring a tubular rivet head attachment and a 25mm (1") Nylatron® sheave. Purpose-designed with narrow sheaves and grooves, this block delivers smooth, low-friction line management for wire and rope applications alike. The compact, lightweight design weighs just 1.4 oz (40g), making it an ideal choice for performance-conscious sailors looking to minimize added weight in their rigging.

Key Features:

  • Sheave Material: Nylatron® — durable, low-friction polymer for smooth operation
  • Cheek Material: Grade 316 stainless steel for superior corrosion resistance
  • Sheave Diameter: 25mm (1")
  • Maximum Cable Diameter: 3mm (1/8")
  • Maximum Working Load (MWL): 450 kg (990 lbs)
  • Breaking Load (BL): 900 kg (1,980 lbs)
  • Weight: 40g (1.4 oz)
  • Attachment Style: Tubular rivet head — can be fastened with screws, shackles, or lashing

Typical Applications:

  • Halyards
  • Vang systems
  • Backstay control lines

The RF418's tubular rivet construction provides a secure, virtually maintenance-free attachment point — an occasional fresh water rinse is all that's needed to keep it performing. Built to Ronstan's exacting standards for marine-grade hardware, this wire block is a reliable, long-lasting component for dinghy and performance sailing rigging systems.

Products specifications

Type

Single

Diameter

1/8 Inch or 3 mm

Mount Type

Fixed Lashing Eye

Weight

0.09

Ball Bearings

Plain Bearings

Becket

No Becket

Direction

Any

Integral Cleat

No Integral Cleat

Ratchet

Non Ratcheting

Safe Working Load

990 Pounds

Sheave Diameter

25 mm

Thank you

Great service

Best Price, free shipping. Who would complain??

Nice and easy

Great

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy