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

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

1.5 inches

Fastener Length

1.5 inches

Head Style

Flat fillister

Internal Drive Style

Hexagon

Thread Diameter

0.112 inches

Thready Qty Per Inch (tpi)

Material

Steel property class 18.8

Thread Series Designator

Unc

NSN

5305-01-597-4681

Part Number

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

Description

Screw,cap,socket Head

CAGE

80204

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.

Part ANSIB18.3.1 4-40UNC-2A1-1/2SST NSN 5305-01-597-4681

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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Schedule B and Export

Schedule B: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment