1. Standard: DIN, ANSI and non-standard
2. Thread: coarse, fine or extra fine (e.g. M10-1.5, M10-1.25, M10-1.0)
3. Surface: full hexagon, no burr and nice flatness
4. Raw Material: with stable quality and completive price
2. Thread: coarse, fine or extra fine (e.g. M10-1.5, M10-1.25, M10-1.0)
3. Surface: full hexagon, no burr and nice flatness
4. Raw Material: with stable quality and completive price
