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Harken 20STC Radial One-Speed Chrome Self-Tailing Sailboat Winch

Manufacturer

Harken

<h3>About Harken: Performance Marine Hardware Since 1967</h3><p><strong>Harken</strong> is one of the most recognized names in performance marine hardware, with a legacy stretching back to 1967. <a href="/14853-harken">Harken</a> was founded in a 60-foot trailer by brothers Peter Harken and Olaf Harken, who set out to engineer better sailboat hardware than anything the market had to offer. Their early breakthrough — the plastic recirculating ball bearing block — redefined how sailors managed lines under load and launched a brand that would go on to dominate competitive sailing at the highest levels.</p><p>Headquartered in Pewaukee, Wisconsin, and with a major manufacturing facility in Limido Comasco, Italy, Harken operates as an employee-owned company with distribution spanning 48 countries. From club racing dinghies to grand prix offshore programs, Harken hardware has been aboard winning boats for decades — making its Olympic and America's Cup debuts in 1976 and 1977, respectively.</p><h3>A Full Range of Marine Hardware</h3><p>Harken's product lineup is broad by design. The company works hard to be the technological leader in sailboat blocks, deck hardware, winches, and hydraulics, as well as safety and rescue equipment and services. Their marine catalog includes small boat and big boat blocks, travelers and genoa leads, mainsail and headsail handling systems, winches, hydraulics, mooring solutions, and a robust line of spare parts and accessories.</p><p>At the core of it all are Harken's renowned <a href="/14853-harken-pulleys-blocks-200822">Pulleys &amp; Blocks</a> — the product category that started it all. Whether you're outfitting a high-tech racing dinghy or a bluewater cruising yacht, Harken blocks are engineered for high-load capacity, corrosion resistance, and the smoothest possible operation. The lineup spans sheave sizes from 16 mm all the way to 75 mm, with single, double, triple, fiddle, and soft-attach configurations to cover virtually every application on deck.</p><p>Beyond sailing, Harken also produces a dedicated line of sportfishing <a href="/14853-harken-pulleys-blocks-202394">Pulleys &amp; Blocks</a> engineered for the unique demands of offshore fishing. These compact, high-load pulleys are built for outrigger systems, dredge rigging, and heavy-duty line management — bringing the same patented bearing technology that excels on race courses to the rigors of the fishing cockpit.</p><h3>Why Sailors Trust Harken</h3><p>What sets Harken apart is a relentless commitment to engineering. Each product category is developed with input from top sailors, sailmakers, and boat designers — and the results speak for themselves on race courses worldwide. Harken hardware is a consistent fixture on America's Cup campaigns, Volvo Ocean Race fleets, Olympic classes, and everything in between. For cruisers, that race-proven performance translates into gear that is more reliable, longer-lasting, and more responsive than the alternatives.</p><ul><li>Employee-owned company with decades of marine engineering expertise</li><li>Manufacturing in the USA and Italy, with global distribution in 48 countries</li><li>Patented bearing systems engineered for high loads and minimal friction</li><li>Product lines covering everything from small dinghies to superyachts</li><li>Trusted at the Olympic Games and America's Cup since the 1970s</li></ul>

Part Number

20STC
07/12/2036 11:03 PM
Sale Price

$686.68

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Product Details

The Harken 20STC is a Size 20 Radial one-speed, chrome self-tailing winch built for sailors who demand both elegance and reliable performance. The mirror-polished chrome drum pairs with a black composite base and top, delivering a refined look on any yacht's deck without sacrificing the proven pulling power of Harken's Radial gearing system.

The Radial drum gripping surface is precision-engineered for the Size 20 chrome drum specifically. Because chrome is more slippery than aluminum, the diagonal ribs are spaced closer together to maximize friction and holding power while still greatly reducing line wear compared to abrasive surfaces. When easing under load, the patented rib angle drives line wraps downward, preventing overrides and providing smooth, controlled release.

The self-tailing mechanism allows a single crew member to efficiently trim or raise sails hands-free, with spring-loaded composite jaws that adjust under line pressure to accept a range of line sizes. The fully covered winch top keeps fingers and clothing clear of moving parts.

Key Features:

  • Mirror-polished chrome drum with size-specific diagonal rib pattern for maximum grip and reduced line wear
  • Single-speed operation with a gear ratio of 2.76:1 and a power ratio of 19.20
  • High-strength composite self-tailing jaws and skirt — lightweight and corrosion-resistant
  • Composite roller bearings reduce friction under load and require no lubrication
  • Load-carrying gears and pins are 17-4PH stainless steel for long-term strength and corrosion resistance
  • Snap-fit roller bearing design keeps bearings captive in a Delrin® cage during drum removal for maintenance
  • Snap-on/off base skirt enables easy one-person installation without removing the drum
  • Sealed top lifts out as a single unit for quick, mistake-free seasonal maintenance
  • Accepts line from 1/4 in. (6 mm) minimum to 1/2 in. (12 mm) maximum

Specifications:

  • Drum Diameter: 2-7/8 in. (73 mm)
  • Base Diameter: 5-3/8 in. (137 mm)
  • Height: 5-13/16 in. (148 mm)
  • Line Entry Height: 2-3/8 in. (61 mm)
  • Fastener Circle: 4-3/8 in. (110 mm)
  • Fasteners: 5 × 1/4 in.
  • Gear Ratio: 2.76 | Power Ratio: 19.20
  • Weight: 7.5 lbs.

The Harken 20STC is a top choice for small boat and yacht owners seeking a compact, low-maintenance, self-tailing winch that combines classic chrome aesthetics with Harken's industry-leading Radial winch engineering.

Products specifications

Diameter

5 3/8"

Height

5 13/16"

Type

Single Speed

Activation Method

Manual

Drum Material

Chromed Bronze

Gear Ratios

2.76:1

Power Ratio

19.2:1

Tailing

Self-Tailing

Warranty Details

Three Years

Arrived earlier than expected. Shipping was a little more but it was a small order so that happens.

Easy no hassle purchasing fast shipping

thank you.

aok

Online ordering was easy, the prices are good, and fast delivery. Over all it was a pleasure doing business with them.

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