Model: 144757

Tapping Screw

Properties:

Fastener Length

1.000 inches

Head Style

Round

Head Diameter

Between 0.334 inches and 0.359 inches

Head Height

Between 0.123 inches and 0.137 inches

Internal Drive Style

Slot

Features Provided

Casehardened

Nonmachine Thread Style

Gimlet point (type a, ab or ba)

Nonmachine Thread Diameter

0.190 inches

Material

Steel

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, class 3 federal specification single treatment response

Nondefinitive Specification/std Data

A type

Departure From Cited Document

As modified by case hardening and surface treatment

NSN

5305-00-227-1167

Part Number

144757

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 144757 NSN 5305-00-227-1167

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