Model: SC2657-3-8P

Panel Fastener Screw

Properties:

Thread Class

Thread Length

0.318 inches

Fastener Length

Between 0.933 inches and 0.963 inches

Head Style

Hexagon

Head Height

Between 0.110 inches and 0.125 inches

Width Between Flats

Between 0.367 inches and 0.376 inches

Internal Drive Style

Torque-set ribbed

Thread Diameter

0.190 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

160000 pounds per square inch

Material

Iron alloy 660

Material Specification

Ams 5737 assn standard single material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416 ty2 federal specification single treatment response

Thread Series Designator

Unf

NSN

5305-01-384-2498

Part Number

SC2657-3-8P

Description

Screw,panel Fastener

CAGE

06950

A headed, threaded fastening device with special square threads, which is designed to be attached to a panel by means of a retaining washer. The screw fastener is used in conjunction with a speed nut to facilitate fastening two items.

Part SC2657-3-8P NSN 5305-01-384-2498

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

19665

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: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment