Serving our customers with quality and safety first.
2a
RIGHT-Hand
0.212in. and 0.312in. ⁓5/16"
0.281in. and 0.312in. ⁓5/16"
flat countersunk undercut
0.452in. and 0.507in.
0.092in. and 0.107in. ⁓7/64"
cross recess type 1
0.250in. ⁓1/4"
20
57000 pounds per square inch
80.0 degrees and 82.0 degrees
copper alloy
QQ-B-626 fed spec single material response or QQ-W-321 fed spec single material response
unc
1EA
Unc
20
Flat countersunk undercut
0.212 inches minimum and 0.312 inches maximum
Right-hand
2a
Schedule B number: 7415338550
nmfc 096630
Other copper screws (not for wood) bolts and nuts
FSC 5305 ⁓ Screws
unc thread series 20 thread quantity per inch flat countersunk undercut head style 0.212" thread length right-hand 2a thread class
Nothing similar to this part number was found in our inventory
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.