The models and specifications of self-tapping screws are diverse, mainly divided into different diameters and lengths. Specifically, the models of self-tapping screws include:
6#: diameter is 3.5mm, lengths are 1.6cm, 2.5cm, 3.2cm, 3.8cm, 4.5cm, 5.0cm, 5.5cm.
7#: diameter is 3.9mm, lengths are 2.5cm, 3.2cm, 3.8cm, 4.5cm, 5.0cm, 5.5cm, 6.5cm, 7.0cm.
8#: diameter is 4.2mm, lengths are 2.5cm, 3.2cm, 3.8cm, 4.5cm, 5.0cm, 5.5cm, 6.5cm, 7.0cm, 8.0cm, 9.0cm.
10#: 4.8mm diameter, lengths of 5.0cm, 6.5cm, 7.0cm, 8.0cm, 9.0cm, 10cm.
These models and sizes allow self-tapping screws to adapt to different application requirements, whether it is furniture making, architectural decoration or other fields. The design of self-tapping screws allows the matching female threads to be drilled in pre-drilled holes on metal or non-metallic materials to achieve the fastening function. This feature makes self-tapping screws particularly useful in situations where quick and secure connections are required.