Sea-Dog Gate Latch 221880-1, Investment Cast 316 Stainless Steel, for 1-1/4 Inch Square Tubing, Pontoon Gates

The Sea-Dog Gate Latch (part number 221880-1) is a marine-grade hardware fitting designed to secure gates built from 1-1/4 inch square tubing, making it a common choice for pontoon boat gates. It is machined from investment cast 316 stainless steel, a grade valued in marine environments for its resistance to corrosion from saltwater and constant weather exposure, so it holds up to repeated outdoor use without rusting or seizing.

The latch measures 1-1/4 inches by 1-1/4 inches by 2-1/2 inches and installs with a 1/4 inch thru bolt (bolt not included), allowing it to be fitted directly to the square tubing frame of a pontoon gate. Its simple, low-profile design keeps the gate secured while remaining easy to operate by hand, and the stainless steel construction means it can be left on the boat year-round without special winterizing.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 221880-1
• Product Type: Gate Latch
• Material: Investment Cast 316 Stainless Steel
• Tubing Size: 1-1/4 inch square tubing
• Dimension A: 1-1/4 inches
• Dimension B: 1-1/4 inches
• Dimension C: 2-1/2 inches
• Fastener: 1/4 inch bolt (not included)
• Weight: 0.4 pounds
• Package Dimensions: 7.88 x 3.88 x 1.5 inches
• UPC: 035514222020

Fitment

Fits gates constructed of 1-1/4 inch square tubing, such as pontoon boat gates.

Replaces (OEM)

No OEM cross-reference numbers are listed for this part.

Frequently Asked Questions

What size tubing does the Sea-Dog 221880-1 gate latch fit? The Sea-Dog 221880-1 gate latch is designed to be used with 1-1/4 inch square tubing.

What is this gate latch made of? It is made of investment cast 316 stainless steel, a corrosion-resistant grade suited to marine environments.

Is the mounting bolt included with the Sea-Dog 221880-1? No, the gate latch installs with a 1/4 inch thru bolt, but the bolt itself is not included.

What are the dimensions of the Sea-Dog 221880-1 gate latch? The latch measures 1-1/4 inches by 1-1/4 inches by 2-1/2 inches.

How much does the Sea-Dog 221880-1 gate latch weigh? This gate latch weighs 0.4 pounds.

What is the Sea-Dog 221880-1 gate latch typically used for? It is ideal for pontoon gates, securing gate sections built from 1-1/4 inch square tubing.

Will 316 stainless steel resist rust in saltwater use? Yes, the 221880-1 gate latch is investment cast from 316 stainless steel, which is corrosion resistant and suited to marine and saltwater exposure.

Does the Sea-Dog gate latch come with mounting hardware? The 221880-1 requires a 1/4 inch thru bolt for installation, which is not included and must be purchased separately.

Can this latch be used on gates other than pontoon gates? The Sea-Dog 221880-1 is built for 1-1/4 inch square tubing, so it can be used on any gate frame of that tubing size, though it is most commonly used on pontoon gates.

What is the manufacturer part number for this gate latch? The manufacturer part number is 221880-1, made by Sea-Dog.