1. Hinge boringhead wb506, wb508, wb509, wb5010, wb5011, wb5012.
2. Spacing:
(1) Ph: 16x20x25x32x40, 17x22x32x34x44, 20x24x28x34x40x48, 1"x 1-1/4 x 1-11/16"x2"x2-1/2", 22x32x44x64, 20x30x40x60.
(2) Max capacity: 12, 12, 15, 15, 15, 15.
(3) Thread: m8 x 1.25p, m8 x 1.25p, m8 x 1.25p or m10 x 1.5p, m8 x 1.25p or m10 x 1.5p, m8 x 1.25p or m10 x 1.5p, m8 x 1.25p or m10 x 1.5p.