Steel structure, activities, such as sandwich panels board generally what kind of self-tapping screws fixed ah?
Roof 75 stupid 135 self-tapping nail 100 stupid 165 self-tapping nail wall 50 stupid 75 self-tapping nail 75 stupid 100 self-tapping nail 100 stupid 125 tapping nail
Self-tapping screw, the English name Self-tapping Screw is a metal or non-metallic materials in the pre-drilling hole in the self-drilling with a female thread with a threaded fastener. Self-tapping screws are used for connection between thin metal plates (steel plates, saw boards, etc.). When connecting, first thread the bottom of the connector, and then screw the tapping screw into the threaded bottom hole of the connected part. As the tapping screw thread surface has a high hardness (≥ 45HRC), can be connected to the threaded bottom hole in the internal thread, thus forming a connection.
Steel structure, activities board room sandwich panel tapping screw selection:
Roof: 7.5cm with 135 self-tapping nails; 10cm with 165 self-tapping nails.
Wall board 5cm with 75 self-tapping screws; 7.5cm with 100 self-tapping nails; 10cm with 125 self-tapping nails
