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Rod Size for Die Threading

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Thread Specification: 

Examples:

#10-32
10-32
In Numbered machine screw thread (#1 through #12)
1/4-20
1/4"-20
0.25-20
In Fractional UNC thread (1/4" through 1")
1/2-20
1/2"-20
0.5-20
In Fractional UNF thread (1/4" through 1")
M6
M6x1
6x1
mm Metric coarse thread (M1 through M22)
M6x0.75
M6x.75
6x.75
6mm x.75
mm Metric fine thread (M1 through M22)
0.255-40
.255-40
0.255"-40
In Non-standard thread (0.06" through 1.0")

 

Reducing the size of a rod you want to thread with a die makes it easier to start the die,
but the real secret is to add a 30° chamfer to the end of the rod.

Die Blank Size is the Major Diameter less 10% of the Pitch.
This is about the same as common bolts.

 
Quick Change Tool Post Set, AXA
  • Quick change tool post set for lathes with up to 12" swing
  • AXA, or series 100 size
  • Tool holders interchange with Aloris, Dorian, and Phase II
  • All steel construction
  • Includes five tool holders

$194.95

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HiTorque 5100 Mini Lathe - 7x16
  • Extended bed (16" between centers) provides more working room
  • Most powerful and most low-speed torque in its class. No gears in spindle drive
  • 4" 3-jaw lathe chuck
  • Cam lock tailstock
  • CHUCK GUARD HAS NOW BEEN REMOVED

$1,199.00

Regularly $1,299.00

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HiTorque 7350 Deluxe Mini Lathe - 7x16
  • Features of 5100 (most powerful, most low-speed torque, gearless spindle, cam-lock TS, 4" chuck)
  • Includes DRO readouts on compound rest, cross slide, and tailstock
  • Metal hand wheels and chrome levers
  • Includes 0XA wedge-type quick change tool post and five tool holders
  • CHUCK GUARD HAS NOW BEEN REMOVED

$1,599.00

Regularly $1,699.00

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