Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.370in. ⁓3/8"
0.917in. and 0.947in. ⁓61/64"
dished hexagon
0.125in. and 0.140in. ⁓9/64"
0.429in. and 0.439in.
0.046in. ⁓3/64"
patch or pellet or strip locking feature
0.552in. and 0.572in.
B-2 bomber
0.2500in. ⁓1/4"
0.2646in. and 0.2651in.
3
drilled
28
160000 pounds per square inch
hexagon corners
32.0 microinches bearing surface of head
32.0 microinches threads
10.0 degrees and 20.0 degrees
bolt, tension, hex head, close tolerance, 6AL-4V titanium alloy, short thread, reduced major thread diameter, SELF-Locking and nonlocking, 160 ksi ftu
all other surfaces 125 microinches ra per asme B46.1
plastic nylon locking feature
titanium alloy uns R56400 fastener
AMS4928 national std/spec single material response or AMS4967 national std/spec single material response fastener
MIL-DTL-18240 and QPL-18240 mil spec single material response locking feature
unjf
80205-NAS6403 thru 6420 professional/industrial association standard
Unjf
Titanium alloy uns r56400 fastener
Plastic nylon locking feature
28
0.2646 inches minimum and 0.2651 inches maximum
0.046 inches
Dished hexagon
0.370 inches
Right-hand
3a
Schedule B number: 8108908000
nmfc 093486
Other wrought titanium
FSC 5306 ⁓ Bolts
Used on b-2 bomber. unjf thread series all other surfaces 125 microinches ra per asme B46.1 bolt, tension, hex head, close tolerance, 6al-4v titanium alloy, short thread, reduced major thread diameter, self-locking 28 thread quantity per inch 0.2646" grip length 0.046" hole diameter dished hexagon head style 0.370" 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.