NATO Stock Number
5306-00-156-2695
Sold in multiples of
100 EA
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.324 inches and 0.364 inches
Fastener Length
Between 0.709 inches and 0.729 inches
Head Style
Button
Head Diameter
0.500 inches
Head Height
0.125 inches
Groove Diameter
0.196 inches
Shank Unthreaded Hole Diameter
0.076 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
Distance From Head Largest Bearing Surface To Shank Hole Center
0.563 inches first hole
Material
Steel comp 4037 or steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 8740 or steel comp 4140
Material Specification
Mil-b-6812 military specification all material responses
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 type 2 cl 3 federal specification single treatment response
Thread Series Designator
Unf
Departure From Cited Document
Thread t per mil-s-7742 except major diameter is not to exceed max allow shank bolt dia
