Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.425in. and 0.571in. ⁓37/64"
0.761in. and 0.806in. ⁓13/16"
flat countersunk
0.452in. and 0.510in.
cross recess type 1
0.250in. ⁓1/4"
28
140000 pounds per square inch
248.0 brinell standard and 321.0 brinell standard
99.0 degrees and 101.0 degrees
iron alloy 660
unf
1EA
Unf
28
Flat countersunk
0.425 inches minimum and 0.571 inches maximum
Right-hand
3a
Schedule B number: 7318152000
nmfc 093486
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
unf thread series 28 thread quantity per inch flat countersunk head style 0.425" 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.