Model: 40631S7S8

Tapping Screw

Properties:

Fastener Length
0.250 inches
Head Style
Round
Head Diameter
Between 0.287 inches and 0.309 inches
Head Height
Between 0.107 inches and 0.120 inches
Internal Drive Style
Slot
Features Provided
Casehardened
Nonmachine Thread Style
Dog type (type b or c)
Nonmachine Thread Diameter
0.164 inches
Material
Steel
Surface Treatment
Cadmium or zinc
Nondefinitive Specification/std Data
C type and 1s style
NSN
5305-00-012-5985
Part Number
40631S7S8
Description
Screw,tapping
CAGE
23040

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 40631S7S8 NSN 5305-00-012-5985

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

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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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