Sea-Dog Black Nylon Head Screw 1/4-20 x 7/8 Inch, Thumb Screw for Side Mount Deck Hinges 273250-273266

The Sea-Dog 273298-1 is a black nylon head thumb screw sized 1/4"-20 x 7/8", made to fasten Sea-Dog side mount deck hinges 273250 through 273266. The nylon head gives a smooth, low-profile finish that matches black hardware trim, while the threaded shaft is nickel-plated brass for corrosion resistance in a marine environment. The 1/4"-20 coarse thread and 7/8 inch length are sized specifically for the mounting bosses on Sea-Dog's 273250-273266 deck hinge series, so the screw seats flush and threads in without binding.

Because it is a fastener rather than a standalone hardware piece, it is typically ordered as a replacement when an original screw is lost, stripped, or corroded, or as an extra set when installing new deck hinges. A matching white version (273299-1) is available as a separate part number for hardware finished in white.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 273298-1
• Product Name: Head Screw (Black)
• Thread Size: 1/4 inch-20
• Length: 7/8 inch
• Color: Black
• Head Material: Nylon
• Shaft Material: Nickel-plated brass
• Compatible With: Sea-Dog side mount deck hinges 273250 thru 273266
• Weight: 0.046 pounds
• UPC: 035514273336
• Standard Pack: 10 each / 10 pair

Fitment

• Sea-Dog side mount deck hinges, part numbers 273250 through 273266

Frequently Asked Questions

What size is the Sea-Dog 273298-1 thumb screw? It is a 1/4 inch-20 thread by 7/8 inch long screw, part number 273298-1.

What color is this screw? The 273298-1 has a black nylon head. A white version with the same 1/4-20 x 7/8 inch sizing is sold separately as part number 273299-1.

What is the head made of? The head is nylon, while the threaded shaft is nickel-plated brass for corrosion resistance.

What does the 273298-1 screw fit? It is sized for Sea-Dog side mount deck hinges numbered 273250 through 273266.

How much does one screw weigh? Each 273298-1 head screw weighs 0.046 pounds.

Is this the same screw used on white deck hinge hardware? No. White hardware uses part number 273299-1, which shares the same 1/4-20 x 7/8 inch sizing but has a white nylon head instead of black.

How are these screws packaged? The 273298-1 is available in a standard pack of 10 each or 10 pair.

Will this screw work with hinges outside the 273250-273266 range? The 273298-1 is sized specifically for the 273250 through 273266 deck hinge series; fit with other hardware is not confirmed.

Is the 273298-1 an OEM Sea-Dog part? Yes, 273298-1 is the Sea-Dog manufacturer part number for this black nylon head screw.

What thread type does this screw use? It uses a 1/4 inch-20 coarse thread, matching the mounting bosses on compatible Sea-Dog deck hinges.