The 45# steel universal joint connects two shafts and can be bent at any angle. It can be used in various model cars and model boats. It is small, exquisite and durable.
4 - 5mm, which means connecting shafts with diameters of 4mm and 5mm.
Product material: 45 gauge steel
Specifications: 2-2mm, 2-2.3mm, 2.3-2.3mm, 2.3-3mm, 2.3-4mm, 3-3mm, 3-3.17mm, 3-4mm, 3-5mm, 3.17-3.17mm, 3.17-4mm, 4-4mm, 4-5mm, 5-5mm, 5-8mm, 6-4mm, 6-5mm, 6-6mm, 6-8mm, 8-8mm, 8-10mm, 10-10mm, 3-2mm.
Product outer diameter:
** 2-2; 2-2.3; 2.3-2.3 diameter 8mm, length about 18mm
** 2.3-4; 3-3; 3-3.17; 4-4; 3-4; 3.17-3.17; 3.17-4; 3-2 diameter 9mm, length about 23mm
** 3-5; 4-5; 5-5; 6-4; 6-5; 6-6 diameter 11mm, length about 24mm
** 5-8; 6-8; 8-8 diameter 14mm, length about 34mm
**8-10; 10-10 diameter 16mm, length about 35mm
Screw accessories:
** 3-4, 4-4, 3.17-4, 4-2, 2.3-4, 2-2, 2-2.3, 2.3-2.3, 2.3-3, 3-3, 3-2, 3.17-3.17, 3- 3.17 (with two 3*4 machine meter screws)
** 4-5, 5-5, 6-4, 6-5, 6-6, 3-5 (with two 4*4 machine screws)
** 8-8, 5-8, 6-8, 8-10, 10-10 (with four 4*4 machine screws)


