Challenge Europe explain about the different types of thread forms for industrial screws and fasteners available.
Bedford, United Kingdom, March 12, 2017 –(PR.com)– Metric thread forms are common across a significant range of fastener products, so that for example an M5 thread is the same irrespective of the head type or screw style. There are of course fine thread, extra fine thread and constant pitch series, but if possible these are to be avoided as their stocked range is not as comprehensive as it is for your more general coarse pitch threads.(…)
via Many Threads on Industrial Screws and Fasteners Stocked at Challenge Europe – PR.com.