Use a tap drill that is at the maximum minor diameter tolerance. Since tapping hard materials produces a lot of heat, coolant isn’t adequate. Coolant doesn’t have enough lubricity to assist the tap.

The BSA M20 was one of the most successful models produced by the British brand, being used also by the British Army throughout World War II. It had, at its heart, an air-cooled, four-stroke ...

the friction of the threads. Along with the pitch, or number of threads per unit length, thread friction contributes to the self-locking, or “non-overhauling” property of most screw threads.

At 06:15 BST a Smart car was involved in a collision with another car near junction one of the coastbound M20. The Smart car was then involved in a further collision with another car on the slip ...

Motorists have been urged to “avoid the area” after a “serious” three-car crash on the M20 in Kent. All traffic has stopped both ways on the M20 near Swanley Interchange since around 6am ...

A man who was driving a smart car has died after two crashes on the M20 near Swanley. Emergency services were called to a crash at 6.15am this morning (Wednesday, October 16) to reports that a ...

A section of the M20 in Kent was closed and a woman was taken to hospital following a three-vehicle crash. Kent Police said it was called to the incident on the coastbound carriageway near ...

It has been a tragic 24 hours on UK roads after several fatal motorway crashes (Picture: UKNIP) A man in his 20s has died after a crash on the M20 in Kent – the seventh fatality on England’s ...

A fatal three-car crash has left the M20 shut for around ten hours, disrupting travel between Kent and London. The crash happened around 6.15am near the Swanley Interchange, where the M25 meets ...

A running commentary of text messages pertaining to one topic or question. Message threads are used in all forms of user discussions on the Internet, including Usenet newsgroups, Web-based forums ...

All vehicles were temporarily stopped in both directions on the M20 between Junction 6 A229 Blue Bell Hill and Aylesford just before 4pm. Traffic was stopped in both directions on the M20 between ...