Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.653in. and 0.683in. ⁓11/16"
0.970in. and 0.990in.
hexagon
0.167in. and 0.183in. ⁓3/16"
0.430in. and 0.439in.
0.2490in. and 0.2495in.
0.250in. ⁓1/4"
0.307in. and 0.317in.
28
32.0 microinches grip
32.0 microinches threads
63.0 microinches bearing surface of head
nickel alloy 718
C50TF13 CL-B fscm 07482 mfr ref single material response
unjf
Unjf
Nickel alloy 718
28
0.307 inches minimum and 0.317 inches maximum
Hexagon
0.653 inches minimum and 0.683 inches maximum
Right-hand
3a
Schedule B number: 7508900000
nmfc 139820
Other articles of nickel (excluding cloth, grill & netting of nickel wire)
FSC 5306 ⁓ Bolts
unjf thread series 28 thread quantity per inch 0.307" grip length hexagon head style 0.653" 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.