30-degree trapezoidal screw, one end, one end, one end, two-stage A, one end, left-handed, one end, right-handed, middle tolerance h7
- Kind: 30 degree trapezoidal screw
- Type: One end, one end, one end, two-order type
- Step position: Left-hand thread end single step right-hand thread end double step
- Form of cooperation: Standard type
- End face machining features: None
- Middle tolerance of lead screw: h7
- Thread direction: One end left and one end right
- Material: S45C/SUS303
- Surface treatment: None/blackened