Model: 543-03

Socket Head Cap Screw

Special Features:

Screw, hex socket, button head, 10-32 unf 3/16inch thread grade 8

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.500 inches
Fastener Length
0.500 inches
Head Style
Button
Internal Drive Style
Hexagon
End Application
Common hardware
Thread Diameter
0.190 inches
Width Across Flats
0.188 inches
Thready Qty Per Inch (tpi)
32
Part Name Assigned By Controlling Agency
Screw, skt button hd cap
Extra Long Reference Number
Ansi b18.3 10-32unfx1/2-8-fe/zn-normal-c
Material
Steel
Material Specification
Ansi b18.3 grade 8 national std/spec all material responses
Surface Treatment Specification
As4397 national std/spec all treatment responses
Thread Series Designator
Unf
Reference Number Differentiating Characteristics
As differentiated by extra long reference number
NSN
5305-01-561-5584
Part Number
543-03
Description
Screw,cap,socket Head
CAGE
83508

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 543-03 NSN 5305-01-561-5584

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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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

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