The Gudwells 7" bullet barrel hinge is designed for swinging devices freely. It's the best choice for a welding project. The bullet hinge is an excellent solution for people who have to deal with limited welding space on their frames or doors/gates. In cases like these, using broad leaf hinges seldom works out. On the other hand, bullet hinges also offer a cleaner appearance no matter where you plan to apply them.
The hinges are not just restricted for industrial applications, industries like electronics, construction, shipping, automotive, and marines also find them quite useful. These hinges also come in handy for cabs, boats, trailers, and truck bodies, traffic light controls, etc. Security gates, cab enclosures, toolboxes, fishing equipment, and barbecue pits.
The brass bushing can makes it swings more smoothly and quietly. The OD of the barrel of the hinge is 13/16"(20mm) which makes it more strong. The hinge has a rotating pin which OD is 1/2"(13mm) so it can hold up a heavy gate/door. 4 Packs of the hinge can support a maximum weight of 660 lbs. gate/door. You can install more hinges to the gate if its weight is heavier.

Specifications:
Load capacity: 660 lbs./300kg (4 Hinges)
Length: 7" (17.8cm)
OD of Barrel: 13/16" (20mm)
OD of Pin: 1/2" (13mm)
Pin Length: 1-3/4" (45mm)
Brass Bushing: φ13/16"(OD) x 0.1" (Thickness)
Material: Steel & Brass