Model: 144789

Tapping Screw

Special Features:

Head style, pan slot drive

Properties:

Fastener Length
0.250 inches
Head Style
Pan no. 2
Head Diameter
Between 0.205 inches and 0.219 inches
Head Height
Between 0.058 inches and 0.068 inches
Internal Drive Style
Slot
Features Provided
Casehardened
Nonmachine Thread Style
Gimlet point (type a, ab or ba)
Nonmachine Thread Diameter
0.112 inches
Material
Steel
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification single treatment response
Nondefinitive Specification/std Data
A type
NSN
5305-00-014-4789
Part Number
144789
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 144789 NSN 5305-00-014-4789

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

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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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