NATO Stock Number
5305-00-639-8715
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.912 inches and 0.962 inches
Fastener Length
Between 2.297 inches and 2.327 inches
Head Style
Flat chamfer
Head Diameter
0.860 inches
Head Height
0.625 inches
Internal Drive Style
Hexagon
Thread Diameter
0.625 inches
Width Across Flats
Between 0.500 inches and 0.503 inches
Thready Qty Per Inch (tpi)
18
Min. Tensile Strength (psi)
160000 pounds per square inch
Hardness Rating
34.0 rockwell c and 40.0 rockwell c
Material
Steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-8503 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6049 military specification 5th material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification all treatment responses
Thread Series Designator
Unf