Model: 40631S8

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

40631S8

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 40631S8 NSN 5305-00-012-5985

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

41756

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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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