Model: 3975550

Tapping Screw

Properties:

Fastener Length

Between 0.720 inches and 0.750 inches

Head Style

Hexagon extended washer

Head Height

Between 0.253 inches and 0.275 inches

Width Between Flats

Between 0.491 inches and 0.500 inches

Extended Washer Diameter

Between 0.624 inches and 0.676 inches

Extended Washer Thickness

0.045 inches

Internal Drive Style

W/o internal drive

Features Provided

Casehardened

Hardness Rating

46.0 rockwell c

Nonmachine Thread Style

Wide flute (type h or bt)

Nonmachine Thread Diameter

0.312 inches

Material

Steel comp 1022

Material Specification

Aisi assn standard single material response

Surface Treatment

Phosphate

Surface Treatment Specification

Gm 4435-m code a gr 72 fscm 11862 mfr ref single treatment response

NSN

5305-01-160-3938

Part Number

3975550

Description

Screw,tapping

CAGE

11862

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 3975550 NSN 5305-01-160-3938

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:

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

Pricing & Availability Check

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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