Harken 20STA Radial Single-Speed Aluminum Self-Tailing Winch

The Harken 20STA is a single-speed, self-tailing Radial aluminum winch engineered for sailors who demand lightweight performance without sacrificing strength or holding power. Part of Harken's proven Radial winch line, the 20STA is an ideal choice for jib sheets, halyards, and control lines on daysailers and small cruising sailboats.

The Radial drum features a precision-engineered gripping surface with diagonal ribs specifically shaped for this winch size and drum material. Unlike abrasive texturing found on lesser winches, the rib design maximizes line grip while significantly reducing wear on rope. When easing a line, the rib angle prevents the line from riding up the drum, eliminating overrides and delivering a smooth, controlled release.

The self-tailing mechanism allows a single crew member to trim or raise sails efficiently, freeing up hands for other tasks. The aluminum drum construction keeps overall weight to a minimum while the composite self-tailing jaws and skirt add additional weight savings without compromising durability.

Key Features:

• Radial drum with size-specific diagonal rib gripping surface — maximizes hold, reduces line wear
• Self-tailing jaws allow single-handed sail trimming
• Aluminum drum for substantial weight savings
• Composite roller bearings reduce friction under load — no lubrication required
• Snap-fit bearing cage keeps bearings captive in Delrin® cage during drum removal for maintenance
• Load-carrying gears and pins are 17-4PH stainless steel for long-term strength and corrosion resistance
• Fully enclosed winch top — keeps fingers and clothing clear of moving parts
• Snap-on/off base skirt for easy deck installation
• Single-speed operation with Power Ratio of 19.20

Specifications:

• Drum Diameter: 2-7/8 in (73 mm)
• Base Diameter: 5-3/8 in (137 mm)
• Height: 5-13/16 in (148 mm)
• Weight: 5.3 lbs (2.4 kg)
• Line Entry Height: 2-3/8 in (61 mm)
• Line Size (Min–Max): 1/4 in – 1/2 in (6–12 mm)
• Fastener Circle: 4-3/8 in (110 mm)
• Fasteners: 5 x 1/4 in
• Gear Ratio: 2.76
• Power Ratio: 19.20
• Material: Aluminum
• Configuration: Self-Tailing, Single Speed

The Harken 20STA is backed by Harken's reputation for precision marine hardware and is compatible with standard Harken winch handles. Spare parts availability and detailed installation templates are provided by Harken, ensuring long service life and easy maintenance for seasons to come.