823

823 Cap Hexagon Head Screw

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Datasheet. 823 specification

Thread Direction
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

Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

0.875in. ⁓7/8"

Fastener Length
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.

2.500in. ⁓2-1/2"

Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

hexagon

Head Height
A measurement from the bottom to the top of the head,in distinction from depth.

0.195in. and 0.211in. ⁓7/32"

Width Between Flats

0.489in. and 0.500in.

Nominal Thread Diameter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.

0.312in. ⁓5/16"

Features Provided
Those features,not otherwise specified,which may be required for proper functioning of the item.

finished head

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

24

Minimum Tensile Strength
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.

154000 pounds per square inch

Minimum Yield Strength
The stress at which a material exhibits a specified limiting deviation from the proportionality of stress or strain.

120000 pounds per square inch

Special Features
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.

cold forged; protected by perma plate finish; double heat treated; 50 per pkg

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp 1541

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unf

Specification/standard Data
The document designator of the specification or standard which established the item of supply.

81343-grade 6 professional/industrial association specification

Answers.

What class is the thread series?

Unf

What material is the cap hexagon head screw made of ?

Steel comp 1541

What is the thread quantity per inch?

24

What is the head style?

Hexagon

What is the thread length?

0.875 inches minimum

What is the thread direction?

Right-hand

What is the NSN for 823?

5305-01-075-6107

How is this classified for shipping?

Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment

What's the federal classification of 823?

FSC 5305 ⁓ Screws

NSN 5305-01-075-6107 SCREW,CAP,HEXAGON HEAD

unf thread series cold forged; protected by perma plate finish; double heat treated; 50 per pkg 24 thread quantity per inch hexagon head style 0.875" thread length right-hand

NIIN
010756107
NIIN Date
04/24/79
Schedule B
7318152000 
Name Code
18257
FIIG
A003B0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - National Institutes of Health 

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823 / Screw,cap,hexagon headWhat is the formal definition of this item?

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.