Fixed weight numbering systems describe the length of thread required to achieve a predetermined weight; fixed length systems provide the weight of thread required to achieve a predetermined length. Finer thread receives a smaller identifier in a fixed weight system and a larger number in a fixed we
Metric thread charts contain information regarding the internal and external diameter of the bolt or nut, the thread's spacing and the thread's minimum and maximum pitch. It also contains the ISO metric thread profile.
Internal threads work the same. A class 2B working plug gage is used to inspect a class 2B internal product thread. A Class 6H metric internal thread is inspected with a class 6H go / no-go working plug gage. Truncated setting plug gages for adjustable thread ring gages tend to cause some problems and confusion.
metric thread gages standard pitch diameter chart 14 nominal size & pitch pitch diameter go ring gage 6g tolerance pitch diameter not go ring gage ... go plug gage 6h tolerance pitch diameter not go plug gage 6h tolerance mm in. (ref) mm in. (ref) m 1.6 x 0.35 1.354 .05331 1.291 .05083 1.373 .05406 1.458 .05740 m 2 x 0.4 1.721 .06776 1.654 ...
thread plug gages basic thread designation dimensions in millimeters dimensions in inches nominal o.d. pitch major dia. pitch dia. minor dia. nominal o.d. threads per inch major dia. pitch dia. minor dia. min. (must clear) min. go max. hi min. max. min. (must clear) min. go max.
The basis for determining the gauge limit is the magnitude of the product tolerance. i.e. the larger the product tolerance, the larger the gauge limit regardless of diameter. The gauges recommended to be used are as follows:-For testing internal product threads a double ended screw plug gauge (Style E) may be used.
American inch, metric thread gages, acme, buttress, straight and tapered pipe thread gages, left hand, pre-plate, whitworth, multiple lead thread plug, and thread rings are all available. Size capabilities run from 000-120 threads per inch to 15 ½ inch diameter and one thread per inch.
The 10% Rule is intended to assist in the selection of the tolerance for Go & No-Go gages. The premise is; if you surrender 10% of the total product tolerance to the gages, you will pass 90% of your product tolerance 100% of the time, if the Go fits and the No-Go does not. Go Plug Gage
M Series Metric thread gages are manufactured per ASME B1.16M. Standard thread gages are made to a Class X tolerance. Gages may be purchased individually or as assemblies. Plug gage assemblies are marked with the thread size, class of fit and pitch diameters. Pipe Gages per ASME B1.20.1, ASME B1.20.5 and Hole Location gages stocked. ACME ...
Metric thread calculator to calculate external and internal metric thread dimensions including major diameter, minor diameter, pitch diameter and thread tolerance according to ISO 724 and ISO 965 standards. There are two calculation options available, general engineering use or custom use.