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  1. FastenerDude

    Machining Inconel 718 Per AMS 5962 (Cold Reduced)

    I have a customer who wants me to make a double end stud out of Inconel 718 per AMS 5962 (Capable of 220 KSI Tensile). The stud size is a 1-1/4" diameter (with an unthreaded body diameter of 1.111"). The only material I can get is 1-3/4" round. I raised the concern to my customer that...
  2. FastenerDude

    ASTM A426 GRADE CPCA15

    I need a very small amount (6-3/4" OD x 5" ID x 9.625" long) of tube or pipe in ASTM A426 Grade CPCA15. I am machining a locking nut for a pump shaft and am having trouble sourcing the material. Any ideas? Greg System 22, Inc.
  3. FastenerDude

    ASTM A193-B8M, CLASS 2

    The ASTM A193-B8M, Class 2 spec calls out a solution anneal and cold drawn material. The cold work is what kicks up the tensile strength on this material. Is there a way to tell how deep the cold work goes in the material when it is cold drawn? I have a customer who wants to machine some B8M...
  4. FastenerDude

    Galvanic Corrosion Between Inco 625 and K500

    Will galvanic corrosion occur between Inco 625 and K500 material? I have a customer who wants to buy a Inco 625 Socket Head Cap Screw along with a K500 lockwasher. The environment will be subsea. I offered a K500 lockwasher b/c you can get a "true" lockwasher in this material where as with...
  5. FastenerDude

    Corrosion of B7 Studs

    Good Afternoon, I have attached a picture for reference. We supply ASTM A193-B7 studs that are Zinc Yellow plated to a customer who uses them to build a compressor. The studs are corroding quicker than expected. The flanges that these studs bolt up, are made of stainless steel so I suspect...
  6. FastenerDude

    TITANIUM FASTENERS AND ELECTRICAL CONDUCTIVITY

    I have heard that Titanium is as conductive as wood. Is this true? I have a customer who is looking for some fasteners that will be placed in a deep sea environment but they cannot be conductive at all. They are fastening a sensor that costs millions of dollars and if a conductive metallic...
  7. FastenerDude

    PLASTIC FASTENERS TO BE USED IN DEEP SEA

    I have a customer looking for plastic fasteners that will hold up well in a deep sea environment but will also hold its load over a long period of time. Is there a plastic out there that would lend itself to these requirements?

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