Flat Dies

Mairoll thread dies feature Super M-42 material, which is vacuum heat-treated and tempered for maximum toughness and durability. This provides the longest possible thread rolling life, resulting in reduced set-ups, fewer dies to purchase, and significant cost-savings. All dies are synchronized and center-matched to reduce variability in set-ups. Mairoll manufactures all standard, controlled major, and modified thread forms to meet customer needs. Custom form requirements can also be met. Precise and accurate thread forms assure the customer quality parts that meet or exceed today’s stringent aerospace and commercial quality standards. In addition, cut-down services can double the life of boltmaker dies. Dies in unified and metric sizes are available
in the following configurations:
  • Boltmaker Single & Split Face
  • Controlled Major Forms
  • Custom Designs
  • Fillet Rolls
  • Groove Dies
  • Knurl
  • Special Forms
  • Standard Duplex

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