Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.615in. and 0.695in. ⁓45/64"
3.740in. and 3.760in. ⁓3-49/64"
hexagon
0.146in. and 0.166in. ⁓11/64"
0.430in. and 0.439in.
0.065in. first hole and 0.072in. first hole
spec item
0.250in. ⁓1/4"
3.065in. and 3.125in.
finished head
28
125000 pounds per square inch
26.0 rockwell c and 32.0 rockwell c
3.630in. first hole and 3.650in. first hole
32.0 microinches threads
63.0 microinches bearing surface of head
63.0 microinches grip
shank holes 90 deg apart and countersunk both sides 60 deg to 0.100 in. dia
steel comp 8740
ams 6322 assn std single material response
cadmium
ams 2400 assn std single treatment response
unf
Unf
Steel comp 8740
28
3.065 inches minimum and 3.125 inches maximum
Hexagon
0.615 inches minimum and 0.695 inches maximum
Right-hand
3a
Schedule B number: 7318152000
nmfc 093486
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5306 ⁓ Bolts
Used on spec item. unf thread series cadmium surface treated shank holes 90 deg apart 28 thread quantity per inch 3.065" grip length hexagon head style 0.615" thread length right-hand 3a thread class
Nothing similar to this part number was found in our inventory
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. see also screw, cap, hexagon head and screw, machine.