Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.401in. and 0.451in. ⁓29/64"
2.161in. and 2.191in. ⁓2-13/64"
flat countersunk
0.461in. and 0.507in.
HIGH-Torque
0.250in. ⁓1/4"
28
160000 pounds per square inch
36.0 rockwell c and 40.0 rockwell c
99.0 degrees and 101.0 degrees
steel comp 4140 or steel comp 4340 or steel comp 8740
MIL-S-5626 mil spec 1st material response or ams 6414 assn std 2nd material response or MIL-S-8844 mil spec 2nd material response or MIL-S-6049 mil spec 3rd material response
cadmium and chromate
QQ-P-416, type class 2 fed spec single treatment response
unjf
80205-NAS1221 professional/industrial association standard
Unjf
Cadmium and chromate
28
Flat countersunk
0.401 inches minimum and 0.451 inches maximum
Right-hand
3a
Schedule B number: 7318152000
nmfc 133300
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
unjf thread series cadmium screw surface treated 28 thread quantity per inch flat countersunk head style 0.401" 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.