Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.312in. ⁓5/16"
0.312in. ⁓5/16"
hexagon
0.640in. and 0.672in. ⁓43/64"
0.327in. and 0.359in.
flat
w/o internal drive
0.250in. ⁓1/4"
28
copper alloy
unf
Unf
Copper alloy
28
Hexagon
0.312 inches
Right-hand
3a
Schedule B number: 7415338550
nmfc 096630
Other copper screws (not for wood) bolts and nuts
FSC 5305 ⁓ Screws
unf thread series 28 thread quantity per inch hexagon head style 0.312" thread length right-hand 3a thread class
1. | BB29181 | Cage 56442 |
Nothing similar to this part number was found in our inventory
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. a locking feature may be incorporated in the design of the head or threads.