Ronstan RF150 D Shackle 3/16" Pin – Stainless Steel Slotted Pin Shackle

The Ronstan RF150 D Shackle (3/16" Pin) is a compact, high-strength marine-grade stainless steel shackle designed for secure, reliable rigging connections.

Manufactured from Grade 316 stainless steel, this shackle offers excellent corrosion resistance and durability, making it ideal for harsh marine environments and long-term use on yachts, dinghies, and trailer boats.

The 3/16" (4.8mm) slotted pin design allows for easy tightening and removal using a screwdriver, while maintaining a low-profile head to reduce snagging on ropes or sails.

Despite its small size, the RF150 delivers impressive strength with a breaking load of up to 1500kg (UDL), providing excellent strength-to-weight performance for light-duty rigging and general-purpose marine use.

The classic D (Dee) shackle shape ensures a secure, straight-line connection, making it ideal for applications where side loading is minimal and a compact, dependable fitting is required.

Key Features

• Grade 316 stainless steel – corrosion-resistant marine construction
• 3/16" (4.8mm) slotted pin – secure and easy to tighten
• High strength-to-weight ratio – compact but strong
• Low-profile pin head – reduces snagging on lines
• Breaking load up to 1500kg (UDL)
• Lightweight (~10g) – ideal for performance setups
• Classic D-shackle design – secure inline load handling

Specifications

• Brand: Ronstan
• Model: RF150
• Product Type: D (Dee) shackle
• Pin Diameter: 3/16" (4.8mm)
• Internal Length (B): ~18mm
• Internal Width (C): ~12mm
• Breaking Load (UDL): 1500kg
• Breaking Load (Point Load): 900kg
• Weight: ~10g
• Material: Grade 316 stainless steel

Ideal Applications

• Light-duty rigging connections
• Securing control lines and fittings
• Blocks and pulley attachments
• General marine hardware connections
• Dinghy and trailer boat setups

This shackle is ideal where you need a compact, corrosion-resistant, and reliable connection point for everyday marine use.

Why Buy from Barton Marine NZ?

• Trusted NZ Ronstan hardware supplier
• Fast nationwide delivery
• Genuine marine-grade stainless fittings
• Ideal for NZ coastal and offshore conditions

Pro Tip 

• Use thread sealant or seizing wire to prevent pin loosening
• Ideal for high-load, high-frequency connection points
• Keep a range of sizes onboard for quick rigging adjustments