Rockwood 528 Heavy Duty Hinge Pin Stop, Positive Slip Proof Adjustment, 70 to 100 Degree Door Opening Adjustment

The 528 works on both 1/4 inch and 5/16 inch hinge pins, which covers the two pin diameters you'll find on standard butt hinges. Pull the top hinge pin, check the diameter, and if it's either of those the stop clamps on. No door prep, no drilling, no wall or floor anchor.

A hinge pin stop stops the door at the hinge, so all the force goes back through the hinge and the frame rather than into the wall. That's the right call when there's no solid backing behind the door, when you can't drill the floor, or when you're doing a fast turnaround on an occupied unit. Where a door gets slammed hard and constantly, or the leaf is heavy, a wall bumper or floor stop takes the impact better because the load lands on the door face instead of the hinge barrel. The 528 is the heavy duty version of the hinge pin type, wrought steel with rubber bumpers, so it's the one to reach for if you've had lighter hinge pin stops slip or bend.

The Rockwood 528 carries ANSI A156.16, L02223. That is the line to put on a submittal or a facility standard when the spec calls for the stop to be identified by an ANSI/BHMA designation rather than by brand. Among the hinge pin stops, the Orca Hardware HPHD is the other heavy duty unit and the Delaney Door Saver is a commercial hinge pin door stop, so any of the three will physically fit the hinge; the 528 is the one that comes with the A156.16 L02223 designation already attached for the paperwork.

Not with the Rockwood 528. Its heavy wrought steel construction works with both 1/4 inch and 5/16 inch hinge pins, so one part number covers a mixed hinge fleet across a building. That is worth knowing before you split an order between, say, the Delaney Door Saver commercial hinge pin door stop and the Orca Hardware HPDS to cover different hinge sizes. For a property manager standardizing a hundred doors, a single stop that spans both pin diameters keeps the stockroom to one bin.

It's covered under ANSI A156.16 with the function number L02223. If you're writing a hardware schedule or matching an architect's spec that calls out an L022xx hinge pin stop, that's the line the 528 answers to. Handy when you're standardizing stops across a building and the spec is written by function number rather than brand.

Straight alternatives ZenSupply carries in the same hinge pin format: the Orca Hardware HPHD heavy duty hinge pin stop, the Orca HPST Series and HPDS Series hinge pin stops, the Delaney Heavy Duty Hinge Pin Door Stop, and the Delaney Door Saver commercial hinge pin stop. Emtek's 2241 is a brass hinge pivot stop, a different look aimed at residential brass hardware rather than a steel commercial stop. All install the same way, on the hinge pin, so switching brands does not change your door or wall prep.

Yes, and that's the main reason to pick this type. The stop clamps to the hinge pin, so you drive the top pin up, slip the two halves on, and reseat the pin. The door stays hung, there's no drilling into a finished wall or a tiled floor, and nothing on the door face gets cut. On a turn between tenants or a punch list item, it's a few minutes per opening.

They are two separate Orca Hardware hinge pin stop lines. The HPHD is the heavy duty hinge pin stop in the HPHD series, and the HPST is a hinge pin stop in its own series. Both are hinge pin mounted stops, so both install on the hinge barrel the same way the Rockwood 528 does. Pick the heavy duty HPHD where the door sees repeated traffic and the standard HPST where the opening is lighter duty.

Bright nickel only, ordered as model 528-NP. There's one configuration, so there's no finish or size decision to make on the order form. If the other stops in the building are a brass or bronze tone, the bright nickel will read as a bright silver against them.

The 528 uses rubber bumpers on wrought steel, so the contact point between the two halves is rubber rather than steel on steel. That's what keeps it quiet and keeps it from chewing up the hinge barrel or the frame edge as the door swings into the stop. It's also why the heavy duty version outlasts a lighter stamped stop on a door that gets used all day.