Full Nuts - Metric
The name full nut refers to a standard hexagon nut. They are the most common type of nut and are available in a wide variety of sizes, grades, finishes and thread types.
The European standard for our metric nuts is DIN 934 Grade 8.
To avoid damaging hex nuts they should be tightened using a spanner or socket.
The most common thread type in production today. Usually specified as M then a number x another number. This signifies the thread diameter and the length of the fastener.
For example M4 x 30 means that the major thread diameter (the external distance across the outside of the thread) is 4mm and the length is 30mm. Length is usually measured from the underside of the fastener head.