CURT Trailer Hitch Pin 5/8-Inch for 2-Inch Receiver - Black Zinc, 105° Bent Handle

This CURT 21579 hitch pin is a solid-steel, 5/8-inch pin with a black zinc finish and a 105° bent handle, made to secure ball mounts and hitch accessories in 2-inch receivers.

When you tow, the small parts matter. The CURT 21579 combines heavy-gauge steel, corrosion-resistant coating and a practical bent handle to hold class 3–5 ball mounts and hitch-mounted accessories firmly in place. It’s a simple, rugged component designed for frequent use and long service life on trucks, SUVs and commercial rigs.

How does this hitch pin keep my ball mount secure?

The CURT 21579 slides through aligned pin holes in the receiver and ball mount shank to lock the assembly. The included clip fits the standard retainer hole to prevent the pin from backing out under vibration. The 105° bend also helps the pin seat and resist accidental disengagement.

• Solid 5/8" diameter for tight, reliable fit in 2" shanks
• Standard retainer hole accepts the included clip
• 105° bend provides a natural handle and retention angle

Will this resist rust and wear over time?

This model is finished in black zinc plating to slow corrosion and reduce surface wear from road debris and weather. The coating preserves smooth operation and makes the pin easier to slide in and out compared with bare steel. For coastal or highly corrosive environments, periodic inspection and light lubrication extend service life.

• Black zinc finish for corrosion resistance
• Durable plating reduces friction and wear
• Inspect and lubricate occasionally for maximum longevity

Is this hitch pin compatible with my trailer setup?

The CURT 21579 is sized for 5/8-inch pin holes and designed to work with 2-inch receiver shank accessories—typical on class 3, 4 and 5 hitches. It fits most standard ball mounts, cargo carriers and other receiver-mounted gear that use a 5/8" securing pin. Check your accessory’s pin-hole diameter and shank size before purchase.

• Fits accessories with 2" shank and 5/8" pin hole
• Commonly used on class 3, 4 and 5 trailer hitches
• Includes standard clip for immediate installation

How simple is installation and removal?

Installation is straightforward: align the shank, push the pin through the receiver and accessory holes, then install the clip in the retainer hole. The 105° bend gives a comfortable grip for hand insertion and removal without tools in most situations. The solid construction also means the pin won’t flex or deform under normal towing loads.

• Tool-free install and removal in most cases
• Bent handle improves manual grip and leverage
• Clip secures pin quickly for road-ready towing

Who is this for: drivers, fleet operators and DIYers who need a dependable, hard-wearing hitch pin for routine towing. If you use standard 2" receiver-mounted ball mounts, cargo carriers or other hitch accessories and want a corrosion-resistant, easy-to-handle pin that fits class 3–5 systems, the CURT 21579 is a practical, no-fuss choice.