Thumb screws with a high cylindrical knurled head to GB834, tightened by hand without tools.
- Brand: Shunxi
- Material: carbon steel
- Strength grade: 4.8
- Finish: zinc (blue-white), nickel-zinc; brass plating or black zinc for some sizes
- Sizes: from M3×5 to M10×50 mm
Non-standard screws, including shoulder screws, can be made to order.




















Brand:
Shunxi
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