Fasteners ni gaw jak rung matut mahkai lam ni hta ahkyak ai arung arai ni rai nna, shanhte a kam hpa mai ai lam gaw jak rung ni a ngang grin ai bungli galaw ai lam hpe hkrak hkrak hkra machyi shangun ai. Hpaji masa hku shani shagu yu lajang ai gaw, fastener a prat hpe galu shangun ai sha n-ga, n-gun yawm mat ai hte n-gun yawm mat ai majaw, jak rung ni hkrat sum mat ai hpe mung atsawm sha makawp maga ya lu ai.
San seng ai lam hte gram lajang ai lam ni gaw madung bungli ni re. N-gun ja ai media ni gaw thread gap ni de n shang wa hkra, fastener ntsa kaw na sau, nhprang wan, chemical ni hpe ayan shaw kau ra ai. Hka lum ai shara (sh) tsi mawan rawng ai shara ni hta nga ai fastener ni a matu, neutral detergent hte soft-bristled brush hpe lang na matu hpaji jaw da ai. Ntsa na makawp maga ai layer hpe n hkra hkra, steel wool zawn re ai ngang kang ai arung arai ni hte htu ai hpe grai pat hkum da ai. Hka shin ngut ai hpang, n-gun n rawng ai hka n nga hkra, grau nna threaded connection ni hpe atsawm sha katsi hkra galaw u.
Anti-loosening ladat ni hpe ayan jep joi ra na re. Vibration hkrum katut ai fastener ni hpe 90% daram hta torque wrench lang nna spot check galaw na matu, torque wrench hpe shata mali hta kalang bai jep yu ra ai. Washer deformation (sh) thread stripping zawn re ai n kaja ai lam ni nga yang, kalang ta galai kau nna, n-gun rawng ai shara hpe sawk sagawn ra ai. Ahkyak ai arung arai ni a matu, n-gun n rawng ai hpe pat shingdang ai ladat ni hpe kahkyin gumdin nna, n-gun lahkawng lang hpaw ai, spring washers, shing nrai threadlockers ni hpe jai lang mai ai, gram lajang ai lam hpe ka da ai laika hta, laksan ladat ni hpe ka matsing da ra ai.
Corrosion hpe makawp maga ai lam hpe buga na masa hte maren galaw ra ai. Shinggan de lang ai fastener ni hpe laning mi hta lahkawng lang anti-rust sau hte chya na matu hpaji jaw da ai, stainless steel a matu gaw laksan n-gun n rawng ai hpe pat shingdang ai tsi ra ai. Aten galu tawn da ai fastener ni hpe katsi ai, nbung kaja-hpring ai shara hta tawn da nna, shanhte a npawt nhpang shingbyi shara hta pat da ra ai, n-gun ja ai arung arai ni hte n hkra hkra makawp maga ra ai. Kaji ai n-gun hpe n-gun n rawng ai sandpaper hte shaw kau nna, anti-rust sau hte chya mai ai. Grai sawng ai rust hpe kalang ta galai kau ra ai.
Shani shagu jep joi ai lam hpe madang masat da ai ladat hpe gawgap nna, jak rung a bungli galaw ai atsam marai ni hpe hkan nna, gram lajang ai masing hpe gyin shalat ai hku nna, n-gun rawng ai jak ni hpe galoi mung kam mai ai masa hta tawn da lu na re. Ndai gaw jak rung ni hpe shim lum hkra galaw na matu ga sadi jaw ai sha n-ga, bungli galaw ai lam yawng hpe grau kaja hkra galaw na matu ahkyak ai lam langai mung rai nga ai.
