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The NATIONAL MARKER N102277 is a non-swivel safety hasp designed to secure doors, cabinets, boxes, trunks, and similar enclosures. Part of the National catalog V30 series, this hasp features a ribbed steel body for added strength and a rigid, non-swivel staple. A brass pin secures the staple assembly. When the hasp is closed, all mounting screws are fully concealed, preventing tampering and improving security. At 3.25 inches in length, it suits a range of light-duty through medium-duty lockout and access-control applications. Installation requires basic hand tools and is common across maintenance, facilities, and trade service work.
This safety hasp is suited for residential and light commercial use wherever a reliable mechanical closure is needed. Typical applications include utility enclosures, equipment cabinets, storage boxes, trunks, and outbuilding doors. The concealed-screw design makes it appropriate for any situation where tamper resistance is a priority. It is sold in a minimum pack quantity of 5 units, making it practical for multi-point lockout installations or stocking by maintenance crews and facilities managers.
Designed as a direct-fit replacement or new-installation hasp for standard doors, cabinets, storage boxes, and trunks requiring a non-swivel staple closure. Part of the National V30 series.
Installation is typically performed by maintenance technicians or facilities personnel using basic hand tools. Mount the hasp plate and staple with appropriately sized wood or machine screws suited to the substrate material. Ensure the door or lid is properly aligned before marking fastener locations. When used for lockout-tagout applications, verify the installed hasp meets site-specific LOTO program requirements.
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