Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.444in. and 0.494in. ⁓1/2"
0.892in. and 0.922in. ⁓59/64"
flat countersunk
0.497in. and 0.507in.
0.2490in. and 0.2495in.
HIGH-Torque
0.250in. ⁓1/4"
0.438in.
28
99.0 degrees and 101.0 degrees
SCREW-Close tolerance, 100 degrees HI-Torqe, sealant injection
injection port location 0.18in.
tantalum
unjf
Unjf
Tantalum
28
0.438 inches
Flat countersunk
0.444 inches minimum and 0.494 inches maximum
Right-hand
3a
Schedule B number: 8103900000
Tantalum, wrought
FSC 5305 ⁓ Screws
unjf thread series injection port location 0.18" screw-close tolerance, 100 degrees hi-torqe, sealant injection 28 thread quantity per inch 0.438" grip length flat countersunk head style 0.444" thread length right-hand 3a thread class
1. | 11839C3-7-18 | Cage 59563 |
2. | 11839C3-7-18 | Cage 59563 |
3. | 11839C3-7-18 | Cage 59563 |
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.