Why are some show the pins are removable, some description says they are not? Which can the pins of be removable?

Generally, less than 18 sheets (excluding 18) are added with damping oil, so we do not recommend removing the pins. No less than 18 sheets (including 18) are not added with damping oil, so the pins can be removed with hammers and nails.

If the pin can be removed, how to remove it?

It is easy to remove the pin. Just turn them upside down with the pin off the edge of a table or a solid surface and hit the bottom with a nail and it comes out.

How long are the screws included in the packs?

Each 3.5" hinge comes with 6 short screws (0.75") and 1 long screws(1.58") and Each 4" hinge includes 8 short screws (1") and 1 long screws(1.58"). The short screws make the door perfectly fit the frame.The longer screws provide additional strength!

Claims to be rust-proof, but are they really anti-rust?

Our products have a rust-proof coating on the surface. Any color hinge can be used in the bathroom for a long time, and there is no sign of rust.

What is the load limit?

The strength of the hinges is more than adequate for even 4-6 foot doors. It is no problem that the hinges are used on heavy wood doors, standard hollow core doors, and solid interior doors and so on.