Model: 31870

Tapping Screw

Properties:

Fastener Length

0.500 inches

Head Style

Hexagon extended washer

Head Height

0.219 inches

Width Between Flats

0.375 inches

Extended Washer Diameter

0.500 inches

Extended Washer Thickness

0.040 inches

Internal Drive Style

Slot

Features Provided

Casehardened

Nonmachine Thread Style

Gimlet point (type a, ab or ba)

Nonmachine Thread Diameter

0.250 inches

Material

Steel

Surface Treatment

Chromate

NSN

5305-01-145-7076

Part Number

31870

Description

Screw,tapping

CAGE

05573

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 31870 NSN 5305-01-145-7076

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