System of Measurement

Inch - ANSI

Thread Series

UNC - Unified Natl. Coarse

Thread Size

#4-40

Tap Type

Spiral Flute

Chamfer Type

Modified Bottoming

Shank Type

Square

Material

HSS-E

Coating

Uncoated

[TPI] Threads per Inch

40 tpi

Tap Drill Diameter

0.091 in

[ØDC] Cutting Diameter

0.112 in

[ØDMM] Shank Diameter

0.141 in

[L2] Chamfer Length

2P - 3P

[L1] Thread Length

0.236 in

[LU] Usable Length

0.563 in

[OAL] Overall Length

1.874 in

[SS] Square Size

0.11 in

[NOF] Number of Flutes

2

[FHA°] Helix Angle

50

Length / Diameter

2.5 X D

Thread Class

GH2

Through Spindle Coolant

No