One of the six simple machines, a screw is nothing more than an inclined plane wrapped around a center pole. While today screws come in standard sizes, and typically are tightened by turning clockwise ...

Despite being standardised in the late 1800s, BA threads, the British Association threads used in old electrical equipment, including vehicle magnetos, are based on the metric system. A BA0 bolt has ...

Shoulder screws, also known as shoulder bolts and stripper bolts, are machine screws with an integral shoulder or journal between the head and thread. Although they are not readily available in local ...

News & Views Published: 01 January 1966 Metric Screw Threads Nature 209, 20 (1966) Cite this article ...

When former Rhode Island senator and governor Lincoln Chafee formally jumped into the presidential race on Wednesday, he made a splash. There are good reasons to take Chafee’s bid seriously, but his ...

One of the greatest advantages of designing plastic parts is the vast number of assembly options a designer can apply to his or her design. The most common among these options is the use of screws.