Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.425in. ⁓7/16"
0.660in. and 0.690in. ⁓45/64"
dished hexagon
0.125in. and 0.140in. ⁓9/64"
0.429in. and 0.439in.
0.2641in. and 0.2651in.
0.076in. first hole and 0.086in. first hole
0.250in. ⁓1/4"
0.240in. and 0.260in.
28
0.487in. first hole and 0.507in. first hole
steel comp 4140 or steel comp 4340 or steel comp E4340 or steel comp 8740
AMS6349 assn std 1st material response or AMS6382 assn std 2nd material response or AMS6322 assn std 3rd material response or AMS-S-5000 assn std 4th material response or AMS6415 assn std 5th material response
cadmium
QQ-P-416, type 2, class 2 fed spec single treatment response
unjf
80205-NAS6604 professional/industrial association standard
Unjf
Steel comp 4140 or steel comp 4340 or steel comp e4340 or steel comp 8740
28
0.240 inches minimum and 0.260 inches maximum
Dished hexagon
0.425 inches
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5306 ⁓ Bolts
unjf thread series cadmium surface treated 28 thread quantity per inch 0.240" grip length dished hexagon 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 unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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 not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. for items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. for items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.