Muuqaalka Bolt ee cabbirka caadiga ah ee ikhtiyaariga ah: GB/T5783, GB/T5782, SH/T3404, DIN933, DIN931, ISO4014, ISO4017, UNI5737/UNI5739 heerka Talyaaniga, ASME B18.2.3.1m, ASME B18.2.3.18m.2 .5m B18.2.3.6M metric outer hexagon, ANSI/ASME B18.2.1 iyo cabbirada kale ee caadiga ah.