
Slotted head machine screws for precision instruments
出版:Japanese Standards Association

專家解讀視頻
This Japanese Industrial Standard specifies the steel slotted head machine screws, hereinafter referred to as the "steel machine screws", brass slotted head machine screws, hereinafter referred to as the "brass machine screws", and stainless steel slotted head machine screws, hereinafter referred to as the "stainless steel machine screws", to be used for the precision instruments such as optical instruments and measuring instruments.