National's patented STYLE X CUTOFF DIES will produce the highest quality gimlet point rolled products off square-ended blanks. You can enjoy these production qualities: sharp and solid points - no pig tails - consistent thread lengths - faster setups - a greater range of workability on blank hardnes...

Our BOLTMAKER DIES are given special attention during all manufacturing processes to assure minimum die adjustment is required for diameter, match or taper during setup. This results in an even pressure on the bolt shank during starting and rolling. Add to this the care we exercise in our heat treat...

We manufacture the industry's finest flat thread rolling dies. This has been our only business since we started in 1946. Our satisfied customers include the leaders in the screw and bolt industry. We are service-oriented, and our "custom die approach" means your dies are individualized to your blank...

Since these dies are custom built, blue prints, sketches, samples or detailed specifications should be furnished to ensure the dies conform to your exact requirements. Dies are available to roll either a straight or diamond knurl. Unless otherwise stated, straight knurls will be furnished. Matched d...

For the sake of economy, this type of die is usually reversible. Since considerable metal is displaced during the rolling process, and die hardness is critical, we exercise special care in the heat treating operation. As there are no standards currently established, it is important to specify the bl...