Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.685in. ⁓11/16"
0.906in. and 0.938in. ⁓61/64"
flat countersunk
0.452in. and 0.507in.
slot
0.250in. ⁓1/4"
20
80000 pounds per square inch
80.0 degrees and 82.0 degrees
nickel alloy 400
QQ-N-281, class a fed spec single material response
unc
1 type and 25 style
as modifified by thd cl and thd lg and fastener lg
Unc
20
Flat countersunk
0.685 inches minimum
Right-hand
3a
Schedule B number: 7508900000
nmfc 093486
Other articles of nickel (excluding cloth, grill & netting of nickel wire)
FSC 5305 ⁓ Screws
unc thread series 20 thread quantity per inch flat countersunk head style 0.685" thread length right-hand 3a thread class
1. | 745486 | Cage 10001 |
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.