Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.469in. ⁓15/32"
3.812in. ⁓3-13/16"
hexagon
0.140in. and 0.172in. ⁓11/64"
0.428in. and 0.440in.
0.2487in. and 0.2492in.
0.250in. ⁓1/4"
3.812in.
28
125000 pounds per square inch
26.0 rockwell c and 32.0 rockwell c
63.0 microinches bearing surface of head
63.0 microinches grip
steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4140 or steel comp 4130 or steel comp 4037
MIL-S-6049 mil spec 1st material response or MIL-S-6050 mil spec 2nd material response or MIL-S-6098 mil spec 3rd material response or MIL-S-5626 mil spec 4th material response or MIL-S-6758 mil spec 5th material response or ams 6300 assn std 6th material response
cadmium and chromate
QQ-P-416 ty 2 cl 3 fed spec all treatment responses
unf
Unf
Steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4140 or steel comp 4130 or steel comp 4037
28
3.812 inches
Hexagon
0.469 inches minimum
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 surface treated 28 thread quantity per inch 3.812" grip length hexagon head style 0.469" thread length right-hand 3a thread class
1. | B6812 | Cage 81349 |
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.