Sigma

IWATA BOLT Informational Magazine.

Sigma

IWATA BOLT Informational Magazine.

  • May 1972 Issue

    May 1972 Issue

    [Sigma 13]

    • 1.Live for the purpose of your life - Welcoming new employees -... Yukichi Iwata, President
    • 2.Mechanical properties of bolts and nuts
    • 〈Things about Screws  2〉
    • 3.Screws- The names of screws
    • 〈Overseas spot news 〉
    • 4.New American Metric Screw Plan (2)
    • 〈Fastening Idea〉
    • 5.New type of serrated screw is effective for joining cylinders
    • 6.Easy to spread the gap of materials by using bolts
    • 7.Grade 8 bolts that resist bending fatigue
    • 8.Torque nut with low tightening torque
    • 〈 Iwata Bolt News〉
    • 9.Gunma branch opened

  • Mar 1972 Issue

    Mar 1972 Issue

    [Sigma 12]

    • 1.After traveling in the Middle East ... Yukichi Iwata, President
    • 2.This is how European managers look at Japanese screw companies
    • 〈Things about Screw 1〉
    • 3.The origin of the screw
    • 〈Overseas spot news〉
    • 4.America's metric screw concept
    • 〈Fastening Idea〉
    • 5.Hammer wrench that can be operated with one hand
    • 6.Attach screws to cover to prevent loss
    • 7.Use socket screw to adjust parts
    • 8.Adjust the embedding of the nut using a hard plate
    • 〈 Iwata Bolt News〉
    • 9.☆Saitama Second Factory ☆ New employee welcome ceremony

  • Sep 1971 Issue

    Sep 1971 Issue

    [Sigma 11]

    • 1.As a trading company specializing in screws in the tempestuous period ... President, Yukichi Iwata
    • 〈Factory information〉
    • 2.Effectiveness of value analysis : Remarkable cold extrusion
    • 〈VA〉
    • 3.Specific examples of proposals that help reducing total cost
    • 〈 Iwata Bolt New Product〉
    • 4.Anti-Loosening Bolt with disc spring
    • 〈Overseas spot news〉
    • 5.This way, the screws will never come off

  • Jun 1971 Issue

    Jun 1971 Issue

    [Sigma 10]

    • 1.The 22nd anniversary of Iwata Bolt, and the publication of the 3rd edition of the “Common sense of screws” … Yukichi Iwata, President
    • 〈Factory information〉
    • 2.Promoting a system to ensure quality assurance -JIS certified factory-Summary of Saitama factory-
    • 〈Iwata Bolt News〉
    • 3.Great feedback at Harumi International Trade Fair
    • 4.QC circle (Club) activities with good results
    • 〈Iwata Bolt New Product Corner〉
    • 5. Evolutional new product that replaces welding nuts-Punching nuts-

  • Jan 1971 Issue

    Jan 1971 Issue

    [Sigma 9]

    • 1.The New Year of 1971: improvement of control standard is a major task -_x000D_ ... Yukichi Iwata, President
    • 〈Control System of Iwata Bolt〉
    • 2.Current status of our QC activities
    • 〈From Quality Control Department〉
    • 3.Characteristics of Class 3 Tapping Screws with or without cut and tap tight
    • 〈 Fastening series〉
    • 4.Looseness of screws and prevention <3>
    • 〈Overseas spot news〉
    • 5.Benefits of shouldered bolts
    • 6.PLS bolts that are easy to install but never come off
    • 7.Strong interference fit fastener using metal elongation
    • 8.An Insert with special knurling
    • 9.Multipurpose fastener that keeps initial torque
    • 10.Fasteners for ocean development
    • 11.Strong fastener with strong vibration resistance
    • 12.Coiled locking nut
    • 13.Various high-low screws
    • 14.Blind nut with a reversed groove
    • 15.US concerns over the metric system