How to customize the left hand cap screw?

Many screw fastener threads are generally right-handed, with few left-hand screw fasteners. So, how to customize the left hand cap screw?

The difference between the left and right threads is that the direction of the threads is different and the direction of the screws is different. When the left thread is screwed, it needs to be screwed counterclockwise, while the right thread is screwed clockwise. Many customers did not draw the thread in detail when they gave the drawings. Just draw two small lines on the screw part of the drawing, indicating that there is thread. In this case, we default to the screw is the right thread, not the left thread.

Therefore, when the customer gives the drawing, it is necessary to mark the thread with the screw on the drawing, or if the thread is drawn in detail, pay attention to whether the thread direction of the left hand cap screw is correct. Then we can produce according to the drawings.

If you do not have drawings, you can describe your requirements to the Shi Shi Tong screw manufacturer in detail, and then Shi Shi Tong will design the drawings according to your description to confirm with you whether the left hand cap screw on the drawings are what you need.

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