91257A595

91257A595 Cap Hexagon Head Screw

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Datasheet. 91257A595 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.

0.8750in. and 1.1875in. ⁓1-13/64"

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.

3.00in. ⁓3-1/64"

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

undercut hexagon

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

0.2188in. ⁓7/32"

Width Between Flats

0.5in.

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

0.3125in. ⁓21/64"

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

18

Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.

HIGH-Strength grade 8 steel cap screw

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.

package quantity:25

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

steel

Surface Treatment
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.

zinc

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.

unc

Answers.

What class is the thread series?

Unc

What material is the cap hexagon head screw made of ?

Steel

What is the thread quantity per inch?

18

What is the head style?

Undercut hexagon

What is the thread length?

0.8750 inches minimum and 1.1875 inches maximum

What is the thread direction?

Right-hand

What is the NSN for 91257A595?

5305-01-644-9832

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 91257A595?

FSC 5305 ⁓ Screws

NSN 5305-01-644-9832 SCREW,CAP,HEXAGON HEAD

unc thread series zinc surface treated package quantity:25 high-strength grade 8 steel cap screw 18 thread quantity per inch undercut hexagon head style 0.8750" thread length right-hand

NIIN
016449832
NIIN Date
05/29/15
Schedule B
7318152000 
Name Code
18257
FIIG
A003B0
DEMIL / ITAR
Uncontrolled item (Code )
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
--
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Canada 

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Similar by Design Other screws with similar characteristics

Nothing similar to this part number was found in our inventory

91257A595 / 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.