The round washer head screw is The most flexible screws available. The screw features a washer constructed suitable in. This washer enhances the bearing spot, expanding the toughness of your relationship. Camcar Textron developed this screw in 1967, the place Furthermore, it acquired the knick name of “star screw”. You’ll discover these scre

The polydrive screw drive, also known as RIBE,[seventy four] is spline-formed with rounded ends in the fastener head. The Instrument has six flat teeth at equal spacing; the measurements are based on the diameter of your star factors. The top peak is about half its diameter and commonly features a slot push. Its deeper slot potential causes it to