Specification Material: Low carbon steel Finish: Plain Dimensions: 4-1/4 x 9/16 x 1/2 Rotation angle: 360 degree Pin Size: 5/16 x 7/8 H59 brass grease gitting: M6 x 5 Package size: 6 1/8 x 2 3/8 x 1 3/16 Weight: 0., 2 lbs per hinge, 1., 8 lbs for 8 hinges Packing List 8 x weld on bullet hinges A grease fitting makes these hinges easy to lubricate. Also known as bullet hinges, these hinges are the right size for tight spaces and narrow frames. The hinge pin is permanently attached to the frame leaf so you can quickly lift the door off the hinge without removing the pin. All of the hinges have a small triangular surface to weld to the door frame. Aluminum hinges are about half the... Low carbon steel, plain finish 1 1/16 x 9 Trailer Door Bullet Hinge Iron/Metal/Steel Bullet Welding Weld-on Teardrop Weldable Hinge Add Grease Nipple Zerk with... M6 x 5 Brass Grease Fitting Metal Gate Weldable Hinges OTTFF 8 Pack 4 X 17/32" Weld On Bullet Hinges With Grease Zerk Weld On Hinges