Deltana OK6045B Olive Knuckle 6" x 4-1/2" Hinge, Solid Brass (Each)

Yes, handing is part of the order. The OK6045B is sold left hand or right hand, and every finish is offered in both. An olive knuckle is not reversible the way a butt hinge is, so determine the swing at the opening first and order all the hinges on that door in the same hand. Note it also sells each, not in pairs, so order the quantity of leaves you actually need for the door.

Wood screws, #12 x 1-1/4 inch, are the fastener called out for the OK6045B. There is no machine screw option with it, so it is meant for a wood door and wood jamb, not a hollow metal frame with tapped holes. For a metal frame you need a hinge specified with machine screws and a tapped prep.

It is not built for that. The OK6045B does not have a non-removable pin, so on an outswing exterior door the pin side is exposed and the leaf can be separated from outside. Keep it to inswing or interior openings, or specify a hinge with an NRP feature for an outswing exterior. The BEST BB95 olive knuckle is likewise a removable pin hinge, so it does not solve that problem either.

The ABH 019OK is an olive knuckle hinge built in stainless steel for commercial doors, where the Deltana OK6045B is solid brass and carries a residential designation. If the opening is a high-traffic commercial entry, a school corridor, or a coastal or wash-down environment where a brass hinge would not be the right choice, the 019OK series is the olive knuckle to specify. Both keep the same slim barrel look at the door edge, so the visual result on the opening is comparable.

The Deltana OK6045B is a plain bearing solid brass olive knuckle hinge carrying a residential designation, which suits interior passage doors, cabinet doors, and light-use openings. The BEST BB95 is a forged brass olive knuckle hinge rated medium duty, a step up for doors seeing more cycles. For a heavy commercial leaf in constant traffic, the stainless steel ABH 019OK is the olive knuckle built for that setting. Match the hinge to the weight and cycle count of the leaf rather than to the finish you want.

Yes. The BEST BB95 is a forged brass full surface olive knuckle hinge, meaning it mounts on the surface of the door and frame rather than requiring a mortise. The Deltana OK6045B is a mortise-style olive knuckle hinge installed with #12 x 1-1/4 inch wood screws. On a retrofit where the existing hinge pockets are the wrong size, chewed out, or in a metal frame you do not want to cut, the full surface BB95 removes the routing step. If the door and frame already have clean mortises, the OK6045B drops into that prep.

No, treat them as different installs even though both are olive knuckle hinges. The BB95 is a full surface hinge, so its leaves sit on the face of the door and frame, while the Deltana OK6045B is a 6 inch by 4-1/2 inch mortise hinge fastened with #12 x 1-1/4 inch wood screws into a cut pocket. Swapping one for the other changes the prep, the screw pattern, and where the leaves show. If you are replacing a single failed hinge in an existing set, order the same style you are pulling out so the door hangs true across all hinge positions.

An olive knuckle has a single rounded, olive-shaped barrel where the two leaves meet instead of the stacked five-knuckle barrel of a butt hinge. It is chosen where the barrel is visible and the look matters, and it mortises into the door and jamb like a butt hinge. Deltana's OK6045B is the residential solid brass version of that. If the job is a commercial door or you need surface application rather than a mortise, look at a stainless steel or full surface olive knuckle instead.

The BEST BB95 is an olive knuckle hinge with a removable pin, so the door leaf can be lifted off the frame leaf without unscrewing the hinge. The Deltana OK6045B is not built with a non-removable pin either, so neither of these is the choice for an outswing exterior opening where a security stud is the requirement. For an interior door that gets pulled for moving furniture, painting, or unit turns, the removable pin on the BB95 is the feature to ask for by name.

The Deltana OK6045B is the finish-driven option among olive knuckle hinges, offered in PVD Polished Brass, Polished Brass, Unlacquered Brass, Antique Brass, Oil Rubbed Bronze, Brushed Nickel, Antique Nickel, Polished Chrome, Brushed Chrome, and Paint Black, each in left hand and right hand. The BEST BB95 is a forged brass full surface hinge and the ABH 019OK is stainless steel, both aimed at function over finish coordination. For a property manager standardizing visible hardware across units in a specific finish, the OK6045B is the one with the finish range to match.

The Deltana OK6045B is handed and sold as a single hinge in either Left Hand or Right Hand, so the hand of the opening has to be determined before ordering and every hinge on that door has to be the same hand. Olive knuckle hinges in general are handed by design because the barrel halves interlock in one direction. When cross-shopping the ABH 019OK or the BEST BB95, confirm the hand on the order the same way rather than assuming a universal part.

It will. Deltana lists the olive knuckle line for doors and cabinets alike, and the mounting is straightforward. The thing to watch on a cabinet is scale: at 6 x 4-1/2 inches this leaf is sized for a full door, and on a cabinet stile it may run wider than the frame allows. Measure the stile before committing.

Solid brass. Both the material and the substrate are brass, so the finish sits on brass rather than on plated steel or zinc. That matters in coastal or humid work where a plated steel core rusts through at the screw holes. The finish coating still governs how it weathers, so the exterior-suitable choices are the PVD and lacquered ones rather than unlacquered brass.

The OK6045B ships each, not by the pair or the set, so the quantity you order is the number of individual hinges. Standard practice is three per door on a full-height interior or entry door and two on a shorter or lighter door. Order all of them in the same hand and the same finish.