Serving our customers with quality and safety first.
2a
RIGHT-Hand
0.276in. and 0.312in. ⁓5/16"
0.281in. and 0.312in. ⁓5/16"
flat countersunk
0.147in. and 0.172in.
cross recess type 1
0.086in. (UTS #2)
56
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
1HD
Unc
56
Flat countersunk
0.276 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 56 thread quantity per inch flat countersunk head style 0.276" thread length right-hand 2a thread class
1. | 20203 BLK.OXIDE | Cage 73734 |
2. | 20203 BLK.OXIDEADX | Cage 1VN02 |
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.