NATO Stock Number
5136-00-555-9555
Sold in multiples of
EA
DEMIL
NO
Thread Pitch Diameters
+0.4050/+0.4055 inches
Thread Direction
Left-hand
Thread Length
1.438 inches
Shank Diameter
0.323 inches
Width Across Flats
0.242 inches
Overall Length
3.156 inches
Flute Quantity
4
Thread Structure
Regular
Thread Forming Method
Ground
Starting Chamfer Type
Bottoming
Square End Length
0.406 inches
Material And Location
Steel, high speed
Style Designator
Straight flute
Thread Size And Series/type Designator
0.438-20 unf
Specification Data
05047-asme b94.9 professional/industrial association standard
Departure From Cited Designator
As modified by thread pitch diameters