National Standards
1. Cov qauv rau fastener qhov ntev: Cov no qhia qhov loj me ntawm cov khoom; rau cov khoom threaded, qhov no suav nrog cov xov qhov ntev, xov khiav- tawm, lub xub pwg nrug, xov nyem grooves thiab chamfers, thiab qhov kawg qhov ntev rau cov xov sab nraud.
2. Cov qauv rau fastener technical specifications: Cov no feem ntau npog cov khoom tolerances, mechanical zog, defects, deg kev kho mob, thiab cov khoom kuaj, nrog rau lawv cov kev cai tshwj xeeb.
3. Cov qauv rau kev lees txais kev kuaj xyuas, kos npe, thiab ntim khoom: Cov no qhia txog cov khoom siv sampling, Txais Cov Qib Zoo (AQL), thiab sampling cov phiaj xwm rau lub Hoobkas lees txais kev soj ntsuam, nrog rau cov kev cai rau cov khoom cim thiab ntim khoom.
4. Cov txheej txheem rau kev kos npe (rau cov qauv txheem, fasteners, thiab cov ntsia hlau): Cov no qhia ob qho tag nrho thiab yooj yim rau kev kos cov khoom.
5. Cov qauv rau lwm yam ntawm fasteners: Xws li cov qauv rau fastener terminology thiab cov khoom hnyav.