What does a tight pin hinge mean?

The pin is fixed tight in the knuckles, so the hinge can be mounted for either a left- or right-hand swing. You do not need to buy separate left and right versions.

Can it hold a standard interior door?

No. It is rated light-duty and meant for lightweight doors, chests and cabinet panels. Use a heavier butt hinge for full-size room doors.

Is the pin removable?

No, the pin is non-removable. The two leaves stay joined, so you lift the door off its mounting rather than pulling the pin.

Will stainless steel matter indoors?

It helps in bathrooms, kitchens and damp areas where plain steel hinges rust. Indoors in dry rooms, a standard steel hinge would do the same job.

Does it come with screws?

The hinge is sold as the hinge itself. Plan on supplying screws sized for your frame and door material.

How is it different from a standard butt hinge?

The leaf is narrower and the pin tighter, which suits slim frames and small panels. A standard butt hinge carries more weight but needs a wider mounting surface.