Sigma

IWATA BOLT Informational Magazine.

Sigma

IWATA BOLT Informational Magazine.

  • Jan 1970 Issue

    Jan 1970 Issue

    [Sigma 4]

    • 1.Focus on detailed sales activities and system sales
    • 〈Control system of Iwata Bolt〉
    • 2.Regarding the newly introduced FACOM 230/25
    • 〈From Quality Control Section〉
    • 3.Temperature control of heat treatment furnace
    • 〈VA〉
    • 4.Improved manufacturing method of shouldered bolts for seat frames
    • 〈Explanation of screw terms 4〉
    • 5.apping Screw <3>
    • 〈Overseas spot news〉
    • 6.Will it be a strong competitor to fasteners? - Weld Bold
    • 7.Shifting heavy automotive parts to cold heading.

  • Nov 1969 Issue

    Nov 1969 Issue

    [Sigma 3]

    • 1.A Living Management Body- The Successful Moon Travel of Apollo 11 -... Yukichi Iwata, President
    • 2.☆Iwata Bolt screws travelled to the moon☆
    • 〈Control System of Iwata Bolt〉
    • 3.Parts distrubution by SPICS
    • 〈From Quality Control Section〉
    • 4.Control of heat treatment process
    • 〈Explanation of screw terms 3〉
    • 5.Tapping Screw <2>
    • 〈 VA〉
    • 6.Replacing machining with cold heading to contribute to customers
    • 〈Overseas spot news〉
    • 7.Development based on new ideas and principles
       Innovations on head shape and screw tip

  • Oct 1969 Issue

    Oct 1969 Issue

    [Sigma 2]

    • 1.System and Screws ... Yukichi Iwata, President
    • 〈Control System of Iwata Bolt 〉
    • 2.SPICS that utilizes the cock warehouse method
    • 〈From Quality Control Section 〉
    • 3.Quality assurance system in our manufacturing department (2)
    • 〈Explanation of screw terms 2〉
    • 4.Tapping Screw
    • 〈Overseas spot news〉
    • 5.The wide spreading roles of fastening
    • 6.One Jumbo jet uses 700,000 screws, worth $ 1 million
    • 7.Deburring of screw parts by chemical milling

  • Sep 1969 Issue

    Sep 1969 Issue

    [Sigma 1]

    • 1.Issuing ... Yukichi Iwata, President
    • 〈Control System of Iwata Bolt〉
    • 2.Current status of our IT department
    • 〈From Quality Control Section〉
    • 3.Quality assurance system in our manufacturing department
    • 〈Explanation of screw terms 1〉
    • 4.Regarding the distinction between bolts and screws
    • 〈Overseas spot news〉
    • 5.US screw production is about 600 billion yen, about 4 times that of Japan
    • 6.The tightening standards for automobile fasteners
    • 7.Nut inspection for 7200 pieces per hour
    • 8.MP35N gets attention as a fastener material for space and ocean development
    • 9.Increased interest in aluminum coating due to corrosion resistance