NATO Stock Number
5306-00-151-0531
Sold in multiples of
1 HD
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.636 inches and 0.676 inches
Fastener Length
Between 1.490 inches and 1.510 inches
Head Style
Button
Head Diameter
0.500 inches
Head Height
0.125 inches
Groove Diameter
Between 0.191 inches and 0.201 inches
Shank Unthreaded Hole Diameter
0.076 inches first hole and 0.086 inches first hole
Shank Unthreaded Hole Diameter
0.076 inches and 0.086 inches first hole
Single Shear Strength
3680 pounds per square inch
Internal Drive Style
Slot
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
125000 pounds per square inch
Hardness Rating
26.0 rockwell c and 32.0 rockwell c
Hardness Rating
26.0 rockwell c and 32.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
1.672 inches first hole and 1.703 inches first hole
Distance From Head Largest Bearing Surface To Shank Hole Center
1.672 inches and 1.703 inches first hole
Material
Steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4130 or steel comp 4037
Material
Steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4130 or steel comp 4037
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-6049 military specification 2nd material response or mil-s-6050 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6758 military specification 5th material response or ams 6300 assn standard 6th material response
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-6049 military specification 2nd material response or mil-s-6050 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6758 military specification 5th material response or ams 6300 assn standard 6th material response
Surface Treatment
Cadmium and chromate
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2 cl 3 federal specification all treatment responses
Thread Series Designator
Unf