- Wadida kala duwan iyo qaabka madaxa ee nidaamka la habeeyey
- Heerka: DIN, ANSI, JIS, ISO
- Laga soo bilaabo M1-M12 ama O#-1/2 dhexroor
- Qalab kala duwan ayaa la habeyn karaa
Qaybta: Boolal bir ah oo aan lahaynTags: 3 mm boolal is-taabsi ah, iskutallaab iskutallaab ah, birta madaxa fidsan, boolal madaxa fidsan, boolal bar fiiqan, birta is-taabashada