Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.400in. and 0.450in. ⁓29/64"
0.598in. and 0.628in. ⁓41/64"
dished hexagon
0.125in. and 0.140in. ⁓9/64"
0.429in. and 0.439in.
0.046in. and 0.056in. ⁓1/16"
0.2485in. and 0.2495in.
0.250in. ⁓1/4"
0.178in. and 0.198in.
3
drilled
28
160000 pounds per square inch
hexagon corners
iron alloy 660
AMS5731 assn std single material response or AMS5737 assn std single material response
cadmium threads
chromium grip
cadmium bearing surface of head
QQ-P-320 class 2 fed spec single treatment response grip
unf
80205-NAS6704 professional/industrial association standard
Unf
Iron alloy 660
28
0.178 inches minimum and 0.198 inches maximum
0.046 inches minimum and 0.056 inches maximum
Dished hexagon
0.400 inches minimum and 0.450 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 5306 ⁓ Bolts
unf thread series cadmium bearing surface of head surface treated 28 thread quantity per inch 0.178" grip length 0.046" hole diameter dished hexagon head style 0.400" thread length right-hand 3a thread class
Nothing similar to this part number was found in our inventory
A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. the head is designed to accommodate an external wrench or driver. 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. the unthreaded portion is of specific 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. a locking feature may be incorporated in the design of the head or threads. see bolt, machine and bolt, clevis.