86150 Type 405 Hi-Carbon Steel Hex Die (3 pack) 0.313" Width They are FDA cleared and

They are FDA cleared and USDA accepted as non-toxic materials

Number of Threads: Single Thread

Temperature Range Working Pressure @ 70°F H14 1/4"

It is equally important that worms and worm gears used together must have the same diametrical pitch and threads

86150 Type 405 Hi-Carbon Steel Hex Die (3 pack) 0.313" Width They are FDA cleared andThese dies are made of high quality carbon tool steel and meet the highest industry standards. A complete selection of solid round, adjustable round, and solid hex dies for right hand threads is available. Select sizes of dies may be imported. Click Here for product catalog Proudly Manufactured in the U. S. A