We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver metal threading die with knurled edges and adjustment slot

Drill America

Drill America DWTSR112-51636 5/16"-36 HSS Round Adjustable Die

SKU CH-GNRX-WR533

A high-speed steel round adjustable die for cutting 5/16"-36 threads with a 1-1/2" outer diameter

  • High-speed steel construction extends wear life
  • Adjustable fine-pitch screw allows precise thread fit
  • Chamfered both sides for easier thread starting
  • 5/16"-36 thread size suits specific fastening needs
  • California Proposition 65 warning applies to this product

Threading tool for 5/16"-36 threads

The Drill America DWTSR112-51636 is a high-speed steel round adjustable die cut for 5/16"-36 threads with a 1-1/2" outside diameter. It is designed for machinists and maintenance technicians who need to create or repair external threads on rod, pipe or fasteners. The die is new and carries California Proposition 65 warnings for chemicals known to cause cancer and reproductive harm.

Replaces worn fixed dies

Adjustable dies replace fixed dies when thread fit must be tuned for class of fit or when a single die needs to cover slight diameter variation. The fine-pitch adjusting screw lets the user open or close the die threads, so the jump is worth it when repeatable fit matters more than the speed of a non-adjustable tool. It is not for internal threading or for thread sizes other than 5/16"-36.

Sustained cutting with HSS wear life

High-speed steel construction gives improved wear life during extended threading operations compared with carbon steel alternatives. Chamfers on both faces — 2 to 3 threads on one side and 1 to 1-1/2 threads on the other — support both through-threading and threading close to a shoulder without changing tools. The adjusting screw can be removed for holder-based adjustment in machine use, maintaining consistent geometry over long runs.

Highlights

  • High-speed steel construction extends wear life
  • Adjustable fine-pitch screw allows precise thread fit
  • Chamfered both sides for easier thread starting
  • 5/16"-36 thread size suits specific fastening needs
  • California Proposition 65 warning applies to this product

Specifications

BrandDRILL AMERICA

Questions about this item

What outer diameter die stock or holder fits the 1-1/2" round die?

Use a die stock or machine holder made for 1-1/2" outside diameter round dies; the bevelled slot lets the holder's adjusting screws control the split once the die's own screw is removed.

How do I set the 5/16"-36 die for a new thread, and what step is often missed?

Loosen the fine-pitch adjusting screw, start the 2-3 thread chamfer side on the workpiece with cutting oil, turn steadily, then tighten the screw slightly for subsequent passes — skipping the initial loosening makes the first cut oversize.

When should the HSS round adjustable die be replaced?

Replace it when the cutting edges no longer produce clean 5/16"-36 threads despite correct adjustment and lubrication, or if the split mechanism no longer holds a consistent diameter.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.