Downey Grinding Company, Inc.

Serving the aerospace industry for over 50 years

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Thread Rolling & Knurling

The thread rolling and knurling department houses 15 thread rollers,

 including three 3-die rollers for short, hollow, and thin wall parts.


Threads applied to virtually any material

Diameters from 0-80 to 1-1/2"-20

Lengths to 4"

Knurling of diameters to 3"

J-form and metric

3-die thread diameters from 1/4" to 1-1/2"

Flat die thread rollers from #0 to #60