Which standard should be referred to for bolt length?
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As stated in the title, under the fasteners category in the material table: Fully threaded studs/2 heavy hex head nuts. Dimensions: 0.5” to 12”. Material description: Studs 2 H_Hex Nuts, ASME B16.5/ASME B18.2.2, A193 GR.B7/A194 GR.2H. Which standard should be used to find the corresponding lengths for these bolts? It’s about finding values such as M12x100.
The length needs to be calculated by yourself. If it is a flanged connection, the simplest approach is to compare it with the ASME flange standards and the HG/T20615 standard
It is included in ASME B16.5.
Page 71 of the ASME B16.5 standard, or search for bolt after opening it
HG/T 20631 has an optional items table~~~~