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  1. exquadrum

    Fasteners that meet ASME SA-574 specifications

    Thanks to all that have replied! I have orderd myself a copy of ASME Section VIII Pressure Vessels so that I can read all of this for myself. Again, thanks to all. I have the information that I was looking for! Rick Exquadrum, Inc
  2. exquadrum

    Fasteners that meet ASME SA-574 specifications

    Thanks! I actually found Unbrako, and have their engineering guide. The only reference to material spec in the guide is "A574" which is an ASTM specification. It is my understanding (my boss speaking) that A574 is not "good enough." It must be SA-574 to meet the ASME spec for a pressure...
  3. exquadrum

    Fasteners that meet ASME SA-574 specifications

    My company is building a pressure vessel and I need to find a source for socket head cap screws that meet SA-574 specs, or ASTM B637 GR2 specs. Suggestions for sources would be greatly appreciated. Thanks! Rick Howard Exquadrum, Inc

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