JSA JIS B 1111

Abstract

This Standard specifies the characteristics of cross recessed head screws. If, in special cases, specifications other than those given in this Standard are required, they can be selected from existing Japanese Industrial Standards, for example JIS B 0205-2, JIS B 0209-3, JIS B 1009, JIS B 1051 and JIS B 1054-1. Further, the cross recessed screws not in accordance with ISO 7045 to ISO 7048 are given in Annex JA. NOTE: The International Standards corresponding to this Standard and the symbol of degree of correspondence are as follows. ISO 7045 : 2011 Pan head screws with type H or type Z cross recess - Product grade A ISO 7046-1 : 2011 Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 1 : Steel screws of property class 4.8 ISO 7046-2 : 2011 Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 2 : Steel screws of property class 8.8 stainless steel screws and non-ferrous metal screws ISO 7047 : 2011 Raised countersunk head screws (common head style) with type H or type Z cross recess - Product grade A ISO 7048 : 2011 Cross-recessed cheese head screws (Overall evaluation: MOD) In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEe Guide 21-1.