Sea-Dog Hatch Adjuster, Stainless Steel and Nylon, 321291-1

The Sea-Dog Hatch Adjuster (321291-1) is a locking arm hardware fitting that holds a lid, hatch, or panel open at a chosen position and keeps it from slamming or drifting shut with boat motion. A simple thumb screw knob tightens down to lock the arm in place, and it releases just as easily when you want to reposition or close the hatch. It is commonly used on dock box lids, deck hatches, windshields, and similar hinged panels that need to be propped open and held securely.

The arm is formed from corrosion resistant 304 stainless steel, suited to saltwater and marine exposure, while the mounting pads and the locking knob are injection molded from UV resistant nylon so they hold up under sun exposure without becoming brittle. The adjuster mounts using four fasteners, which are not included, so have your own screws on hand sized for the mounting pads before installation. The adjustable arm spans a length range of 11-1/8 inches to 17-7/8 inches, making it suited for hatches and lids that open within that range.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 321291-1
• Product Type: Hatch Adjuster
• Material: Formed 304 Stainless Steel / Nylon
• Locking Mechanism: Thumb screw knob
• Length (Closed): 11-1/8 inches
• Length (Extended): 17-7/8 inches
• Width: 1-3/8 inches
• Thickness: 1-3/16 inches
• Weight: 0.33 pounds
• Mounting Hardware: Four fasteners (not included)
• UPC: 035514321136

Frequently Asked Questions

What is the Sea-Dog 321291-1 used for? The Sea-Dog Hatch Adjuster 321291-1 holds a hatch, lid, or hinged panel open at a set position, commonly on dock box lids, deck hatches, and windshields.

How does the hatch adjuster lock into position? A thumb screw knob on the 321291-1 tightens down to lock the arm at the desired opening angle, and loosens by hand when you need to move or close the panel.

What is the adjustable length range of this hatch adjuster? The Sea-Dog 321291-1 arm adjusts across a range of 11-1/8 inches closed to 17-7/8 inches extended.

What material is the Sea-Dog 321291-1 made from? It is built from formed 304 stainless steel for the arm, with UV resistant injection molded nylon mounting pads and locking knob.

Is the 321291-1 hatch adjuster corrosion resistant? Yes, the arm is formed 304 stainless steel, which resists corrosion in marine and saltwater environments.

Does the nylon on this hatch adjuster hold up in the sun? The nylon mounting pads and knob on the Sea-Dog 321291-1 are UV resistant, so they are designed to resist sun degradation over time.

What mounting hardware do I need for the 321291-1? Installation requires four fasteners, which are not included with the Sea-Dog 321291-1, so appropriately sized screws should be sourced separately.

How much does the Sea-Dog 321291-1 hatch adjuster weigh? This hatch adjuster weighs 0.33 pounds.

What is the width and thickness of the 321291-1 hatch adjuster? The Sea-Dog 321291-1 measures 1-3/8 inches wide and 1-3/16 inches thick.

Is the Sea-Dog 321291-1 sold as a single adjuster or a pair? The 321291-1 is sold as a single hatch adjuster unit, not a pair.

Can this hatch adjuster be used on a windshield? Yes, the Sea-Dog 321291-1 is suited for windshields as well as dock box lids and deck hatches.