Model: A8544-4

Setscrew

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.188 inches
Fastener Length
0.188 inches
Head Style
Headless (setscrew)
Spline Minor Diameter
Between 0.050 inches and 0.051 inches
Spline Major Diameter
Between 0.061 inches and 0.062 inches
Spline Width
Between 0.013 inches and 0.014 inches
Point Style
Cup
Internal Drive Style
Six spline
Thread Diameter
0.112 inches
Thready Qty Per Inch (tpi)
40
Hardness Rating
45.0 rockwell c and 53.0 rockwell c
Material
Steel comp 4032 or steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740
Material Specification
Aisi assn standard all material responses
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 type 2 cl 3 federal specification all treatment responses
Thread Series Designator
Unc
NSN
5305-00-263-9170
Part Number
A8544-4
Description
Setscrew
CAGE
06845

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

Part A8544-4 NSN 5305-00-263-9170

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06672
FIIG:
A003B0
Concept No.:
App. Key:
SQ
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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