... : straight, 30degree, 45degree, 67.5degree, 90degree Type: long-type, hydraulic-type, button-head type, double-head type square-type, pin-type, ball-type and other special types Metric Size ... for machines, vehicles, industry· cardan shafts· drive shafts· linear guides· hydraulic cylinders· drives· chains· axels · pumps grease fitting 1/4"-28UNF ...