Model: 12377969-1

Tapping Screw

Properties:

Fastener Length
0.470 inches
Head Style
Hexagon extended washer
Head Height
0.264 inches
Width Between Flats
0.500 inches
Extended Washer Diameter
Between 0.624 inches and 0.676 inches
Extended Washer Thickness
Between 0.035 inches and 0.055 inches
Internal Drive Style
W/o internal drive
Features Provided
Casehardened
Hardness Rating
45.0 rockwell c and 50.0 rockwell c
Nonmachine Thread Style
Double flute (type f)
Nonmachine Thread Diameter
0.312 inches
Material
Steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524
Surface Treatment
Zinc and chromate
Surface Treatment Specification
Astm b633 type 2 assn standard single treatment response
Nondefinitive Specification/std Data
F type
NSN
5305-01-443-8436
Part Number
12377969-1
Description
Screw,tapping
CAGE
19207

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 12377969-1 NSN 5305-01-443-8436

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
096640
UFC:
50600
LTL:
70.0
LCL:
--
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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