High Tensile Flat Washer

High Tensile Flat Washers are used in the Petrochemical and Oil & Gas industry. Can be sourced in different forms and of various metals from high strength alloys, stainless steel, duplex/super duplex to more exotic materials, all fully certified and lot traceable.

United Fasteners can quickly produce non-stocked and special sizes quickly. Please send an enquiry for your Petrochemical specifications, application requirements and drawings and we will get back to you with a quote.


  • Imperial: Dia 5/16" - 2-1/2"
  • Material/Finish: Xylan Blue Stainless Steel
  • Compliance: F436 38-45 HRC
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Available in 19 variations

If you have a question, require a unique solution or are looking for a fastener that is not listed, please contact us with your requirements.