Business Description

Since 1971, Howmet Fastening Systems has manufactured the highest quality production tooling in the industry. Our Mairoll® product offering includes flat dies, cylindrical dies and cold header tooling, as well as thread die regrind and cut-down services.


Flat Dies


Howmet Fastening Systems' flat 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. Howmet Fastening Systems manufactures all standard, controlled major and modified thread forms to meet customer needs. Custom form requirements also can be met. Precise and accurate thread forms assure the customer high-quality parts that meet or exceed today's stringent aerospace and commercial quality standards. Dies in unified and metric sizes are available in the following configurations: boltmaker single and split face, controlled major forms, custom designs, fillet rolls, groove dies, knurl, special forms and standard duplex.


Cylindrical Dies


Howmet Fastening Systems produces the highest quality thread forms in the industry, combining thread-lead and helical precision. A wide variety of cylindrical dies are available, including thrufeed, helical infeed, crush rolls, custom forms and cylindrical dies of all sizes. In addition, our regrinding service offers savings of up to 50% off the cost of a new die – and most dies can be reground more than once. M-42, D-2 and other materials are available.


Header Tooling


Our header tooling line includes punches, hammers and stamps in assorted sizes. Howmet Fastening Systems' products feature a complete line of punches, including cruciform-ribbed, cruciform, offset-cruciform-ribbed, offset-cruciform and tri-slot. The header tooling is manufactured from a variety of materials, such as M-2, M-42 and various carbide grades. Tooling can be custom designed and manufactured to suit customer needs.