Sea-Dog Heavy Duty Hasp, 3-9/16 Inch, 304 Stainless Steel

The Sea-Dog Heavy Duty Hasp is a stamped 304 stainless steel security fitting designed to secure lockers, cupboards, chests, and hatch doors against unauthorized opening. It uses a slotted plate that fits over a fixed post: once closed, the plate cannot be lifted free, and it is built to work with a padlock for permanent locking. A key security feature is that all mounting screws are fully concealed when the hasp is closed, so the fasteners cannot be accessed or removed from the outside once the hasp is in the locked position. This measures 3-9/16 inches overall and installs using seven #6 flat head fasteners (fasteners are not included).

Construction is stamped 304 stainless steel throughout, giving the hasp strong resistance to the corrosive effects of saltwater, spray, and marine humidity, making it suitable for long-term exterior use on boats as well as dockside storage such as dock boxes. The hasp is sold individually and is packaged in bulk quantities of 10 for retail display. It shares its slotted-plate-over-post design with the smaller Sea-Dog 221127 Heavy Duty Hasp, while the separate Sea-Dog Swivel Hasp uses a different pad-eye mounting style.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 221128
• Product Type: Heavy Duty Hasp
• Material: 304 Stainless Steel
• Color/Finish: Grey (stainless)
• Dimension A (overall length): 3-9/16 inches
• Dimension B: 2-3/4 inches
• Dimension C: 1-3/16 inches
• Dimension D: 7/8 inches
• Dimension E: 1/2 inch
• Fastener Size: #6 Flat Head (not included, seven required for installation)
• Weight: 0.147 pounds
• UPC: 035514221412
• Standard Pack: 10 each

Frequently Asked Questions

What size is the Sea-Dog 221128 Heavy Duty Hasp? It measures 3-9/16 inches overall (Dimension A), with a width of 2-3/4 inches (Dimension B), and additional dimensions of 1-3/16 inches (C), 7/8 inches (D), and 1/2 inch (E).

What material is this hasp made of? The Sea-Dog 221128 Heavy Duty Hasp is made of stamped 304 stainless steel, which resists corrosion in marine environments.

Does the hasp come with mounting screws? No, mounting fasteners are not included. The Sea-Dog 221128 installs using seven #6 flat head screws that the buyer supplies separately.

How does this hasp prevent someone from removing it? The hasp uses a slotted plate that fits over a fixed post, so it cannot be lifted free once closed, and all mounting screws are concealed when the hasp is shut, preventing them from being accessed or removed.

Can this hasp be locked with a padlock? Yes, the Sea-Dog 221128 is designed to be used in conjunction with a padlock for added security once the slotted plate is fitted over the post.

What is the difference between the 221128 and the smaller 221127 hasp? Both are Sea-Dog Heavy Duty Hasps with the same slotted-plate-over-post design and 304 stainless steel construction, but the 221128 measures 3-9/16 inches overall while the 221127 is a smaller 2-11/16 inch version.

How is this different from the Sea-Dog Swivel Hasp? The Sea-Dog 221128 Heavy Duty Hasp mounts over a fixed post, while the separate Swivel Hasp mounts to a swivel pad eye and accepts a padlock bail up to 5/16 inch; they use different mounting hardware and are not interchangeable.

What is this hasp used for? The Sea-Dog 221128 is intended for securing lockers, cupboards, chests, or hatch doors on a boat or in dockside storage.

Is the Sea-Dog 221128 corrosion resistant? Yes, it is constructed of corrosion resistant stamped 304 stainless steel, suitable for saltwater and marine exposure.

How much does the Sea-Dog 221128 hasp weigh? It weighs 0.147 pounds.

Is the Sea-Dog 221128 a genuine Sea-Dog part? Yes, 221128 is the Sea-Dog manufacturer part number for this Heavy Duty Hasp.

Is the Sea-Dog 221128 sold as a single unit? Yes, the 221128 hasp is sold individually, though it is packaged in bulk quantities of 10 for retail display.