Izina:Ubukonje Buzunguruka Umuyoboro BK BKS Ubukonje bukonje
Igipimo:EN1030-4 DIN2391 DIN1630 DIN2445 JIS G3445 SAE J524
Andika: Ubukonje buzungurutse / bukonje
Icyiciro: 4140 4130 S45C STKM11A STKM12BE355/ ST52ST35 / E235 ST37.4 ST45 / E255n'ibindi
Ingano:OD 4mm-219mm WT0.5mm-25mm
Imiterere: BK / BKS / NBK / GBK nibindi
Icyemezo cyo gupima urusyo: EN10204 3.1
Gutunganya: Kwunama / Gukata / Kuringaniza / Gutwika