Serving our customers with quality and safety first.
2a
RIGHT-Hand
0.425in. ⁓7/16"
0.500in. ⁓1/2"
flat chamfer
0.372in. and 0.375in.
0.125in. ⁓1/8"
0.172in. and 0.182in.
0.075in.
slot
0.250in. ⁓1/4"
20
1
copper alloy 462 or copper alloy 464 or copper alloy 482 or copper alloy 485
QQ-B-637 fed spec all material responses
unc
1EA
Unc
Copper alloy 462 or copper alloy 464 or copper alloy 482 or copper alloy 485
20
Flat chamfer
0.425 inches minimum
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 chamfer head style 0.425" 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, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). it is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. see also bolt, externally relieved body and bolt, internal wrenching.