Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.630in. and 0.697in. ⁓45/64"
2.077in. and 2.124in. ⁓2-1/8"
flat countersunk
0.626in. and 0.672in.
HIGH-Torque
0.437in. ⁓7/16"
20
215000 pounds per square inch
99.0 degrees and 101.0 degrees
MIL-S-18732 mil spec single material response
ams 2401 assn std single treatment response
unjf
Unjf
20
Flat countersunk
0.630 inches minimum and 0.697 inches maximum
Right-hand
3a
FSC 5305 ⁓ Screws
unjf thread series 20 thread quantity per inch flat countersunk head style 0.630" thread length right-hand 3a 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.