Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.444in. and 0.494in. ⁓1/2"
0.954in. and 0.984in. ⁓63/64"
flat countersunk
0.577in.
patch threads or pellet threads or strip threads
0.3110in. and 0.3120in.
cross recess type 1
0.312in. ⁓5/16"
0.490in. and 0.510in.
24
160000 pounds per square inch
36.0 rockwell c and 40.0 rockwell c
99.0 degrees and 101.0 degrees
125.0 microinches grip
125.0 microinches top of head
32.0 microinches bearing surface of head
32.0 microinches threads
plastic locking feature
steel comp 4140 fastener or steel comp E4340 fastener or steel comp 8740 fastener
MIL-S-5626 mil spec 1st material response fastener or MIL-S-5000 mil spec 2nd material response fastener or MIL-S-6049 mil spec 3rd material response fastener
cadmium fastener and chromate fastener
QQ-P-416 TY2 CL2 fed spec single treatment response fastener
unf
80205-NAS1165 professional/industrial association standard
Unf
Steel comp 4140 fastener or steel comp e4340 fastener or steel comp 8740 fastener
Plastic locking feature
24
0.490 inches minimum and 0.510 inches maximum
Flat countersunk
0.444 inches minimum and 0.494 inches maximum
Right-hand
3a
FSC 5305 ⁓ Screws
unf thread series cadmium fastener surface treated 24 thread quantity per inch 0.490" grip length flat countersunk head style 0.444" thread length right-hand 3a thread class
1. | 50158-8 | Cage 72429 |
2. | NAS1165-8 | Cage 80205 |
Nothing similar to this part number was found in our inventory
A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. it is not designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads.