ANSIB18.3.1 4-40UNC-2A1-1/2SST

ANSIB1831440UNC2A112SST Cap Socket Head Screw

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Datasheet. ANSIB18.3.1 4-40UNC-2A1-1/2SST specification

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

2a

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.

1.5in. ⁓1-1/2"

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.

1.5in. ⁓1-1/2"

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

flat fillister

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.

0.112in. (UTS #4)

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

40

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?

40

What is the head style?

Flat fillister

What is the thread length?

1.5 inches

What is the thread direction?

Right-hand

What is the thread class?

2a

What is the NSN for ANSIB18.3.1 4-40UNC-2A1-1/2SST?

5305-01-597-4681

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 ANSIB18.3.1 4-40UNC-2A1-1/2SST?

FSC 5305 ⁓ Screws

NSN 5305-01-597-4681 SCREW,CAP,SOCKET HEAD

unc thread series 40 thread quantity per inch flat fillister head style 1.5" thread length right-hand 2a thread class

NIIN
015974681
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

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. HA1748A00 Cage F6371

Major End Users Countries and entities

  • - France 

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ANSIB18.3.1 4-40UNC-2A1-1/2SST / 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.