Model: 388D4

Setscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.312 inches
Fastener Length
1.312 inches
Head Style
Headless (setscrew)
Point Length
0.375 inches
Point Diameter
0.510 inches
Point Style
Flat
Internal Drive Style
Hexagon
Thread Diameter
0.625 inches
Width Across Flats
0.312 inches
Thready Qty Per Inch (tpi)
11
Hardness Rating
27.0 rockwell c and 34.0 rockwell c
Point Chamfer Angle
90.0 degrees
Material
Steel comp 3135
Material Specification
Qq-s-624 federal specification single material response
Surface Treatment
Phosphate
Thread Series Designator
Unc
NSN
5305-00-517-4245
Part Number
388D4
Description
Setscrew
CAGE
56442

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 388D4 NSN 5305-00-517-4245

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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