RO
SR ISO 3439:2011
Subland twist drills with cylindrical shanks for holes prior to tapping screw threads
Standardul specifică dimensiunile burghielor elicoidale în trepte cu coadă cilindrică pentru găuri înainte de filetare.
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Status :
Withdrawn
Approval date : 12/9/2011
Romanian version publish date : 12/9/2011
Withdrawal date : 5/31/2013
Number of pages : 8
ICS : 25.100.30 Drills, countersinks, reamers
Technical Committee : 59 - Screw threads, fasteners and bearings
- Replaces STAS 12201-83
- Normative reference SR EN 22768-1:1995