

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The NATIONAL MARKER N830198 is a 4-inch residential door hinge finished in oil rubbed bronze, designed for interior door installations. This round-corner hinge features a 5/8-inch corner radius and is built from steel for lasting durability. A removable pin simplifies installation and allows for easy door removal without pulling hardware. Mounting screws are included. This hinge suits standard interior residential door applications and is installed by general contractors, finish carpenters, or experienced DIYers.
This hinge is intended for use on interior residential doors where a 4-inch, round-corner hinge with a 5/8-inch radius is specified. The oil rubbed bronze finish coordinates with period and transitional hardware styles. It corresponds to National Model 512R5/8 or SPB512R5/8. Sold individually.
Corresponds to National Model 512R5/8 and SPB512R5/8. Designed as an OEM-style replacement or new-installation hinge for standard interior residential doors requiring a 4-inch, 5/8-inch round-corner hinge.
Installation is typically performed by finish carpenters or general contractors using a chisel, drill, and appropriate driver bits. Mortise the hinge leaf flush with the door edge and frame jamb before fastening. Confirm door weight and thickness are within the hinge rating before installation. Always verify that the corner radius matches the existing mortise cut to ensure a flush, gap-free fit.
Thanks for subscribing!
This email has been registered!