Model: 3112BW

Tapping Screw

Properties:

Fastener Length

0.500 inches

Head Style

Hexagon extended washer

Head Height

Between 0.243 inches and 0.285 inches

Width Between Flats

Between 0.489 inches and 0.500 inches

Extended Washer Diameter

Between 0.624 inches and 0.676 inches

Extended Washer Thickness

Between 0.035 inches and 0.055 inches

Internal Drive Style

W/o internal drive

Features Provided

Casehardened

Min. Tensile Strength (psi)

135000 pounds per square inch

Nonmachine Thread Style

Dog type (type b or c)

Nonmachine Thread Diameter

0.312 inches

Material

Steel

Surface Treatment

Zinc and chromate

Surface Treatment Specification

Astm b633 type 2 assn standard all treatment responses

NSN

5305-01-162-2358

Part Number

3112BW

Description

Screw,tapping

CAGE

78189

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 3112BW NSN 5305-01-162-2358

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

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