Hka n shang ai hkaulan mam ni hpe application amyu myu hta grai lang nna, ra kadawn ai lam amyu myu hpe hkan sa na matu size amyu myu nga ai. Hka n shang hkra galaw ai nut ni hpe hkrak lata nna jai lang na matu, common specifications ni hpe chye na na matu ahkyak ai.
1. Diameter
Hka n shang ai nuts a diameter gaw ahkyak ai hkrang masa langai rai nga ai. M3 gaw, shi a kaji ai diameter hte, jak kaji ni hta (sh) shara n law ai shara ni hta, electronic jak kaji ni hta kata lam matut mahkai ai lam ni law law lang lang ai. M4 hte M5 hpe mung, n-gun kaba ai n-gun n rawng ai sha, hka n shang hkra galaw ra ai daw kaji ni hpe matut mahkai na matu grai lang ma ai. M6 hte M8 gaw, n-gun n-gun hte torque nkau mi hpe hkam sharang lu ai, general machine, instrumentation hte kaga arung arai ni hta grau law ai. M10 hte M12 hpe grau tsaw ai matut mahkai n-gun ra ai application ni hta lang chye ai, ga shadawn, mawdaw daw ni hte hpaga lam hte seng ai arung arai ni a frame matut mahkai lam ni hpe lang chye ai.
2. Pitch .
Dai thread pitch gaw nut hte bolt lapran na screwing a lawan ai hte hkrak ai hpe dawdan ya ai. Metric hka n shang ai nut ni hta diameter amyu myu hte bung ai standard thread pitch ni nga ai. Dai thread pitch gaw, nut hte bolt lapran na screwing a tightness hte matut mahkai lam a ngang grin ai lam hpe hkra machyi shangun ai. Kaji ai thread pitch ni gaw grau kaja ai hku galai shai lu na matu hte grau n-gun ja hkra galaw lu ai, dai hpe grai hkrak hkra ra ai application ni hta lang chye ai. Larger thread pitch ni gaw lawan ai hku screw galaw na matu ahkang jaw ai majaw, lawan ai lam ahkyak ai application ni a matu htuk manu ai.
3. Tsaw
Hka n shang hkra galaw ai nut ni a tsaw ai gaw ahkyak ai lam langai mi rai nga ai. Masha law malawng gaw millimeter loi mi kaw nna millimeters du hkra rai nga ai. Madung hku tsun ga nga yang, general{2}} yaw shada lam n-gun n rawng ai nut ni gaw nau n law ai. Ga shadawn, electronic jak ni a matu hka n shang hkra galaw ai nut kaji ni gaw 3 hte 8 mm lapran rai na re. Raitim, hka n shang hkra galaw ai nuts ni gaw, n-gun kaba ai (sh) matut mahkai lam hpe grau ngang kang hkra galaw ra ai gaw 10 kaw nna 20 mm (sh) dai hta jan ai de du wa chye ai.