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ČSN is a protected designation of Czech national technical standards.
Hexalobular internal driving feature for bolts and screws
Standard published on 1.7.2015
Selected format:Hexalobular internal driving feature for bolts and screws
WITHDRAWN published on 1.11.2000
Selected format:Hexalobular internal driving feature for bolts and screws
WITHDRAWN published on 1.2.2006
Selected format:Fasteners. Clearence holes for bolts and screws (ISO 273:1979)
Standard published on 1.1.1996
Selected format:
WITHDRAWN published on 25.5.1966
Selected format:Deepness of holes for stud bolts
Standard published on 1.4.1994
Selected format:
WITHDRAWN published on 1.2.1950
Selected format:Fasteners - Bolts, screws and studs - Split pin holes and wire holes
Standard published on 1.5.2014
Selected format:Drilling screws with tapping screw thread - Mechanical and functional properties
Standard published on 1.11.2000
Selected format:Screw and washer assemblies made of steel with plain washers - Washer hardness classes 200 HV and 300 HV
Standard published on 1.1.2010
Selected format:Latest update: 2026-06-26 (Number of items: 2 284 409)
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