NEWSH4458R 4x4 SPRING HINGE 5/8 RADIUS
NEWSH4458R 4" x 4" Residential Spring Hinge, 5/8" Radius
Usually Ships: 1-3 Days
The Cal-Royal NEWSH4458R is a single-acting, full-mortise residential spring hinge with 5/8" radius corners. Adjustable spring action helps return a compatible swinging door toward the closed position. The hinge measures 4" high x 4" wide when open, with a manufacturer catalog-listed .110" leaf thickness.
Practical Uses
- Residential interior doors: Add spring-assisted closing where the door size, weight, preparation, and opening requirements suit the hinge arrangement.
- Utility and storage rooms: Help return a compatible door after someone passes through carrying items.
- Replacement projects: Replace suitable 4" hinges with matching 5/8" radius mortises after checking screw locations, thickness, and barrel clearance.
Everyday example: After carrying laundry through a utility-room doorway, the adjusted spring action helps bring the door back toward the frame. The installer tests the complete arrangement so it closes and latches reliably without unnecessary opening effort.
Installation and Adjustment
Match the preparation: Full-mortise installation recesses one leaf into the door and the other into the frame. Verify the 4" x 4" size, 5/8" radius, .110" leaf thickness, mortise depth, and complete screw pattern before ordering or cutting. A matching nominal hinge size does not guarantee interchangeable mounting holes.
Confirm the model: NEWSH4458R is the residential 5/8"-radius model. The manufacturer lists NBENSH4458R separately as its Benchmark model. Do not assume Benchmark compatibility from the shared 4" size and radius; check the exact supplied model and preparation.
Select the complete hinge arrangement: Consider door weight, width, height, use frequency, seals, latch resistance, and air pressure. The manufacturer advises ball-bearing or concealed-bearing hinges when combining ordinary support hinges with spring hinges. Do not assume one spring hinge will close every door or that this residential model substitutes for heavy-duty commercial hardware.
Install before adding tension: Align hinge axes and check that the door swings freely. The spring-hinge installation guide specifies the adjustment head upward and the door closed during adjustment. Follow the illustrated tension-adjusting rod and set-pin procedure, keeping the loaded mechanism controlled. Test after each adjustment and observe the supplied hardware's limits.
Verify fasteners: The NEWSH4458R drawing identifies #10 x 1" wood screws and #12-24 x 1/2" machine screws. Confirm the actual supplied parts and frame threads. Drawing screw counts do not establish a guaranteed per-hinge package quantity.
Test actual conditions: Check closing and latching from several opening positions with the actual seals and latch installed. Correct rubbing, door sag, or strike misalignment separately instead of increasing spring tension to overcome binding.
Problems It Helps Address
- A door routinely left open: Spring force assists return toward closed on a properly fitted opening.
- Closing force that needs refinement: Adjustable tension helps the installer tune the hinge arrangement.
- Replacement uncertainty: A model-specific drawing helps compare mounting details before altering the door or frame.
Closing assistance, not hydraulic control: A spring hinge does not provide a door closer's separate speed and latch controls and is not a door stop. It does not by itself guarantee positive latching, acceptable opening force, or fire-door suitability. Verify any special opening requirements and the approved complete configuration.
Product Details
- Part number: NEWSH4458R
- Type: Residential, single-acting spring hinge
- Mounting: Full mortise
- Weight classification: Standard weight
- Size: 4" high x 4" open width
- Corner radius: 5/8"
- Catalog leaf thickness: .110"
- Preparation: Cataloged as non-template; compare the actual hole pattern with the model-specific reference drawing
- Material: Catalog lists steel and stainless steel configurations; confirm the base material of the ordered finish
- Packaging reference: Manufacturer catalog lists two pieces per box. Confirm this listing's selling quantity before assuming an order quantity of one includes two hinges.
Offered Finishes
US10B-Antique Bronze Oiled, US15A-Satin Nickel Blackened, US26D-Satin Chrome, US1-Matte Black, US15-Satin Nickel, US26-Bright Chrome, US3-Bright Brass, US4-Satin Brass, US5-Antique Brass, and USP-Primed Gray. Finish names do not establish solid-brass or stainless-steel construction throughout.
