Deltana OK2015 Olive Knuckle 2" x 1-1/2" Hinge, Solid Brass (Each)

Yes, handing is a real decision on this one. The OK2015 is sold left hand or right hand, and an olive knuckle hinge is not reversible the way a standard butt hinge is, so the hand has to match the door swing. Every finish is offered in both hands, so you pick the finish first and then the hand for the opening. Order per door leaf accordingly, since the hinge is sold each, not by the pair.

No. The OK2015 is a residential-duty, plain bearing olive knuckle hinge in solid brass. Plain bearing means no ball or bearing race between the knuckles, which is the wrong choice for a door cycled hundreds of times a day. For a commercial opening, look at the ABH 019OK stainless steel olive knuckle, or the BEST BB95 forged brass full surface olive knuckle, which is rated medium duty.

No, the OK2015 is not an NRP hinge. On an out-swinging exterior or secure door, a removable pin lets someone drive the pin and lift the leaf, so this is not the hinge for that opening. Keep it to interior doors and cabinets, or spec a hinge with a non-removable pin or a security stud for anything out-swinging on the exterior.

The ABH 019OK is an olive knuckle hinge built in stainless steel for commercial doors, where the Deltana OK2015 is solid brass. On exterior openings, pool and coastal doors, or wash-down areas in a healthcare or hospitality facility, stainless is the material spec that survives; brass is the choice when the hinge is meant to be seen and matched to other trim. Both are olive knuckle hinges, so the barrel profile and the mortised leaf appearance carry over between them.

Two olive knuckle hinges are built for commercial service. The ABH 019OK is a stainless steel commercial door hinge, and the BEST BB95 is a forged brass olive knuckle rated medium duty. The Deltana OK2015 is classified residential, which suits interior doors and cabinets in a house or an apartment unit rather than an entrance door in a lobby or a corridor door that cycles all day. For an MRO or institutional buyer standardizing on one hinge across a building, the 019OK or the BB95 is the line to spec.

No - treat them as different preps. The BEST BB95 is a full surface olive knuckle hinge, meaning both leaves mount to the face of the door and frame, while the Deltana OK2015 is a mortised olive knuckle hinge in a 2 inch by 1-1/2 inch size. A door already routed for the OK2015 has mortise pockets, not a flat surface pattern, and a full surface hinge lands on top of that prep rather than in it. If the existing hinge is a mortised olive knuckle, stay with the mortised OK2015 and match the leaf size; the BB95 belongs on a new or repaired door where surface mounting is the plan.

It ships with #7 x 3/4 inch wood screws, and no machine screws. Three-quarter inch is fine biting into a solid wood cabinet stile or door edge, but on a hollow core leaf or a thin face frame you will want to substitute a fastener suited to the substrate. There is no machine screw option supplied, so this mounts to wood as delivered.

An olive knuckle hinge has a single rounded, olive-shaped barrel where the two leaves meet instead of a stack of knuckles around a visible pin. Functionally it hangs the door the same way a butt hinge does, but the exposed joint reads as a smooth ball, which is why it gets specified on cabinetry and finish carpentry where the hardware is on show. The Deltana OK2015 is the small solid brass version at 2 x 1-1/2 inches. If the look is not the point and the door is heavy or high cycle, a standard bearing butt hinge is the better call.

The OK2015 is a mortised olive knuckle, which is why it comes handed and why the barrel is the only part that shows once the door is hung. If you need a hinge that screws to the face of the door and frame with no routing, that is a different animal, the BEST BB95 is a full surface olive knuckle and mounts without mortising.

The BEST BB95 is a forged brass olive knuckle hinge at a medium duty level, so it stays in brass while moving up from the residential classification of the Deltana OK2015. Forged brass and a medium duty rating are what a property manager wants behind a door that gets used dozens of times a day - a unit entry off a common corridor, an office door, a leasing office. The OK2015 keeps its place on cabinets and light interior doors where the appearance of the barrel matters more than cycle count.

The BEST BB95 is built with a removable pin, so the door can be lifted off the frame by drawing the pin. The Deltana OK2015 is not a non-removable-pin hinge either, so neither is the choice when a security integrator needs a pin that cannot be driven out from the hinge side - for an outswinging exterior door, specify a hinge with a non-removable pin or add a security stud. For interior doors where the crew wants to unhang the slab for flooring or painting, the removable pin on the BB95 is the working advantage.

Not from a finish standpoint. The Deltana OK2015 is offered in finishes including polished brass, unlacquered brass, antique brass, oil rubbed bronze, brushed nickel, antique nickel, polished chrome, brushed chrome and paint black, so it can be matched to existing levers and trim. The ABH 019OK is a stainless steel commercial hinge - the right call where corrosion and duty govern, but it will not blend into a run of oil rubbed bronze or unlacquered brass hardware. On a decorative opening, stay with the brass OK2015 and order the handing needed, since it is made in left hand and right hand.

All three are olive knuckle hinges, and the identity of each is in its series and build. The Deltana OK2015 is Deltana's Olive Knuckle series in solid brass with a plain bearing, sized 2 inch by 1-1/2 inch and classified residential. The ABH 019OK is ABH's 019OK Series in stainless steel for commercial doors. The BEST BB95 belongs to BEST's Olive Knuckle Hinges series, forged brass, full surface, medium duty, with a removable pin. A distributor ordering against a drawing should quote the part number that matches the material and mount the specifier called out, since the three are not cross-referenced to one another.

Solid brass, both the material and the substrate. That matters in a bathroom, a coastal property, or a kitchen where a plated pot metal hinge would eventually blister at the finish. The finish sits on brass, not on a zinc casting.