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Datasheet. LSTW7900-10-B8 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
RIGHT-Hand
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.250in. ⁓1/4"
The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.
1.008in. and 1.018in. ⁓1-1/32"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flat countersunk undercut
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.375in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.052in. ⁓1/16"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
TRI-Wing recess
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.190in. (UTS #10)
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
32
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
1300 pounds per square inch
The included angle of the countersink.
99.0 degrees and 101.0 degrees
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
captive screw
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
stud material:8740 alloy steel per ams 6322, heat treat to 160 ksi min. ultimate tensile strength
A characteristic of light that can be specified in terms of luminance,dominant wavelength,and purity.
yellow
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
cadmium
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
QQ-P-416, type ii, class 3 assn std single treatment response
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unjf
Answers.
Unjf
Steel
32
Flat countersunk undercut
0.250 inches
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-592-6251 SCREW ASSEMBLY,PANEL
unjf thread series cadmium surface treated stud material:8740 alloy steel per ams 6322, heat treat to 160 ksi min. ultimate tensile strength captive screw 32 thread quantity per inch flat countersunk undercut head style 0.250" thread length right-hand 3a thread class
- NIIN
- 015926251
- NIIN Date
- 03/14/11
- Schedule B
- 7318152000
- Name Code
- 33044
- FIIG
- A003B0
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- No precious metals
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
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LSTW7900-10-B8 / Screw assembly,panelWhat is the formal definition of this item?
A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. attached to panel by threaded bushing or by flaring end of stand-off, or bushing. used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. may be spring loaded.
