Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.710in. and 0.760in. ⁓49/64"
1.345in. and 1.375in. ⁓1-3/8"
undercut hexagon
0.250in. and 0.265in. ⁓17/64"
0.741in. and 0.752in.
patch threads or pellet threads or strip threads
0.4990in. and 0.4995in.
0.500in. ⁓1/2"
0.615in. and 0.635in.
20
140000 pounds per square inch
32.0 microinches threads
63.0 microinches bearing surface of head
63.0 microinches grip
iron alloy 660
AMS5732 assn std single material response
unjf
80205-NAS1228 professional/industrial association standard
Unjf
Iron alloy 660
20
0.615 inches minimum and 0.635 inches maximum
Undercut hexagon
0.710 inches minimum and 0.760 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
unjf thread series 20 thread quantity per inch 0.615" grip length undercut hexagon head style 0.710" 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.