Screws are a collection of products with outer rhread which can be fixed on any other way as by a key. These different drives are most of the time a slot, cross recess or torx. The variety of kinds, versions and materials are numerous. Please find below a schedule of several kinds of screws:

• Machine screws
• Selftapping screws
• Chipboard screws
• Selfdrilling screws
• Self threadforming screws
• Thread cutting screws
• Wood screws
• Socket set screws
• Drywall screws
• Etc.