Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.306in. and 0.326in. ⁓21/64"
0.994in. and 1.014in. ⁓1-1/64"
flat countersunk
0.499in. and 0.507in.
0.280in. and 0.281in.
HIGH-Torque
0.250in. ⁓1/4"
0.615in. and 0.635in.
28
100.0 degrees
0.0312 in. oversize shank for repair work only
steel comp 4340 or steel comp 4140 or steel comp 8740
MIL-S-5000 mil spec 1st material response or MIL-S-5626 mil spec 2nd material response or MIL-S-6049 mil spec 3rd material response
cadmium
QQ-P-416, type 2, class 2 fed spec single treatment response
unjc
Unjc
Steel comp 4340 or steel comp 4140 or steel comp 8740
28
0.615 inches minimum and 0.635 inches maximum
Flat countersunk
0.306 inches minimum and 0.326 inches maximum
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
unjc thread series cadmium surface treated 0.0312 in. oversize shank for repair work only 28 thread quantity per inch 0.615" grip length flat countersunk head style 0.306" thread length right-hand 3a thread class
Nothing similar to this part number was found in our inventory
A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is designed to be held or driven with an inserted driver. it is not designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads.