ANSIB18.3.3 1/4-20UNC-2A1-1/8SST

ANSIB18331420UNC2A118SST Cap Socket Head Screw

Home » Catalog » Fasteners (p. 577) » Cap Socket Head Screws (p. 1) » Part Number ANSIB18.3.3 1/4-20UNC-2A1-1/8SST

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Datasheet. ANSIB18.3.3 1/4-20UNC-2A1-1/8SST specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

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

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.

1.125in. ⁓1-1/8"

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

flat countersunk

Internal Drive Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.

hexagon

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

0.25in. ⁓1/4"

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

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

steel property class 18.8

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 socket head screw made of ?

Steel property class 18.8

What is the thread quantity per inch?

What is the head style?

Flat countersunk

What is the thread direction?

Right-hand

What is the thread class?

What is the NSN for ANSIB18.3.3 1/4-20UNC-2A1-1/8SST?

5305-01-597-4682

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 ANSIB18.3.3 1/4-20UNC-2A1-1/8SST?

FSC 5305 ⁓ Screws

NSN 5305-01-597-4682 SCREW,CAP,SOCKET HEAD

unc thread series 20 thread quantity per inch flat countersunk head style right-hand 2a thread class

NIIN: 015974682
NIIN Date: 06/09/11
Schedule B: 7318152000
Name Code: 16282
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

Major End Users Countries and entities

- France

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ANSIB18.3.3 1/4-20UNC-2A1-1/8SST / Screw,cap,socket headWhat is the formal definition of this item?

An externally threaded fastener whose threaded portion is of one nominal diameter. the head has an internal socket or multiple spline for use with an inserted driver. a locking feature may be incorporated in the design of the head or threads. excludes items with bevel (conical) heads. see bolt, internal wrenching. excludes screw, shoulder; and screw, machine.