Rod Size for Die Threading

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.

Magnetic Base Indicator Holder

Magnetic base indicator holder with one-knob lock
Permanent magnet has an 80 kg (176 lb) holding force
On/off switch makes it easy to position
V-groove base allows you to mount it on cylindrical surfaces

$49.95

More products like this

Bench Grinder, 8" Low Speed

Powerful 1 HP motor
No load speed 1750 RPM
Adjustable tool rests
Adjustable safety eye shield and spark resistors

$299.95

More products like this

Belt & Disk Sander, 1" x 30" Belt & 5" Disc

Belt sze 1″ x 30″
5″ Disc diameter
Dual cast aluminum tables tilt 0-45°
Table Tilt 0-45°
Includes: Miter Gauge, 1-80 Grit Disc and 1-100 Grit Belt

$159.99

More products like this