The socket the bolt uses does not determine the bolt size ! This is really important heremon mistake made. You measure the diameter of the heree up with the M5 value. Metric Nut, Bolt , Screw, Washer Threads, Dimensions , Sizes, Tap Drill Size , Hole Size , Metric Socket Head Cap Scew Threads and Dimensions , Metric Button Head Scew Threads Bolt thread size is a the measure of the small threads that run in a spiral along the exterior of a bolt or other attachment device. Getting the correct measurements is critical for purchasing pieces for a construction project or to replace attachments in a preexisting mechanism.

A screw is a type of fastener, in some ways similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread). Screws are used to fasten materials by digging in and wedging into a material when turned, PCD (Pitch Circle Diameter) is the measurement of the diameter of the imaginary circle drawn through all of the wheel bolts or studs on a wheel. It is also known as the ' bolt circle'. A wheel's PCD is usually displayed after the number of studs, separated by a slash. Hence a 'pcd' of 5/ heremon for people to refer to hex bolts by the size of the head measured across the flats (this is also the size wrench the bolt uses). This is incorrect and should be avoided for two reasons.

Metric bolt sizes are listed according to diameter, distance between threads and length. A bolt might be listed as 12 x 1.75 x 30. This indicates that the bolt has a diameter of 12 mm, that the distance between each bolt thread is 1.75 mm and that the bolt is 30 mm long. The History of Bolts . Around 200 BCE, Archimedes invented a large bolt or screw pump, making use of the screw principle.The pump consisted of a screw with helical threads engraved on a … We have a web site dedicated to training, have a look at - for additional information on bolting technology. ACORN NUT A nut (so-called because of its shape) that has a domed top so that it prevents contact with the external thread.

Jul 05, 2009 According to the JD Parts site, that is a 16mm bolt . Not sure what size socket that would take, but you can go look at the picture to be sure.