Welding Hinge can be called Weld-on hinge, metal door hinge, heavy duty welding hinge.

Hinge is designed for doors with high radial loads, doors with closers, and doors with large length to width ratios.

Hinge features two ball thrust bearings and two needle radial bearings.

Hinge features a grease fitting for ease of lubrication.

The hinge pin is made from heat treated alloy steel.

The hinge leaf and hinge barrel are made from mild steel, unfinished.

Weight ratings are based on two hinges per door, capacities are not additive.

This hinge is sold by the "each", you would normally order a minimum of 2 hinges for each door you are hanging.