This standard specifies commonly used cross-recessed machine screws made of steel and brass with built-in washers. This cross-recessed machine screw with built-in washer is a machine screw blank in which a washer is assembled and then the screw is rolled to prevent the washer from falling off the machine screw.
JIS B 1188:1995 history
2017JIS B 1188:2017 Cross recessed head screws with captive washer
2006JIS B 1188 AMD 1:2006 Cross recessed head screws with captive washer (Amendment 1)
1995JIS B 1188:1995 Cross recessed head screws with captive washer