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28 counterbore
3a
RIGHT-Hand
0.320in. ⁓21/64"
0.790in. ⁓51/64"
hexagon
0.350in. ⁓23/64"
0.438in.
0.046in. ⁓3/64"
0.250in. counterbore
0.250in. ⁓1/4"
2
drilled
unf counterbore
RIGHT-Hand counterbore
28
180000 pounds per square inch
39.0 rockwell c and 43.0 rockwell c
0.250in. counterbore ⁓1/4"
hexagon corners
3b counterbore
shoulder 0.100 long, and 0.432 dia.
steel comp 4130
MIL-S-6758 mil spec single material response
counterbore threaded
unf
Unf
Counterbore threaded
Steel comp 4130
28
0.046 inches
Hexagon
0.320 inches
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
unf thread series counterbore threaded shoulder 0.100 long, and 0.432 dia. 28 thread quantity per inch 0.046" hole diameter hexagon head style 0.320" thread length right-hand 3a thread class
Nothing similar to this part number was found in our inventory
An externally threaded fastener whose external threaded portion is of one nominal diameter. it has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. the concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. the head is designed to be held or driven by an external and/or internal driver. for items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.