Model: 166778

Tapping Screw

Properties:

Fastener Length

0.375 inches

Head Style

Round

Head Diameter

Between 0.443 inches and 0.472 inches

Head Height

Between 0.160 inches and 0.175 inches

Internal Drive Style

Cross recess type 1

Features Provided

Casehardened

Nonmachine Thread Style

Thru slot (type d)

Nonmachine Thread Diameter

0.250 inches

Material

Steel

Surface Treatment

Cadmium or zinc

NSN

5305-00-016-6778

Part Number

166778

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 166778 NSN 5305-00-016-6778

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

50.0

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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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