Model: 166778

Tapping Screw

Properties:

Fastener Length
0.375 inches
Head Style
Round
Head Diameter
Between 0.443 inches and 0.472 inches
Head Height
Between 0.160 inches and 0.175 inches
Internal Drive Style
Cross recess type 1
Features Provided
Casehardened
Nonmachine Thread Style
Thru slot (type d)
Nonmachine Thread Diameter
0.250 inches
Material
Steel
Surface Treatment
Cadmium or zinc
NSN
5305-00-016-6778
Part Number
166778
Description
Screw,tapping
CAGE
7X677

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes screw, assembled washer.

Part 166778 NSN 5305-00-016-6778

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
41756
FIIG:
A003B0
Concept No.:
App. Key:
SN
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: 7318140000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Self-tapping screws of iron or steel

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