"""Threads  Threads – External helical ribs on the body of a bolt. Usually a bolt """"mates"""" with internal threads of a nut.  The top of the rib is called"""
{"Image DocumentName": "ThreadsThreads \u2013 External helical ribs on the body of a bolt. Usually a bolt mates with internal threads of a nut.", "Image ImageDescription": "The top of the rib is called the crest, or thread tip. Bottom of the groove is called the thread root. Threads are measured by counting the number per inch. (Metric threads are measured by the distance between threads \u2013 pitch \u2013 in mm) Thread gauges are available that match threads against those on the gauge.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}