Model: A408305-4

Socket Head Cap Screw

Properties:

Thread Class

Thread Length

1.312 inches

Fastener Length

1.500 inches

Head Style

Flat chamfer

Head Diameter

0.875 inches

Head Height

Between 0.395 inches and 0.405 inches

Internal Drive Style

Hexagon

Thread Diameter

0.500 inches

Width Across Flats

0.375 inches

Thready Qty Per Inch (tpi)

Hardness Rating

38.0 rockwell c and 42.0 rockwell c

Hardness Rating

38.0 rockwell c and 42.0 rockwell c

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp e4340

Material Specification

Mil-s-5000 military specification single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, class 2 federal specification 1st treatment response or qq-p-416, type 2, class 3 federal specification 2nd treatment response

Surface Treatment Specification

Qq-p-416, type 1, class 2 federal specification 1st treatment response or qq-p-416, type 2, class 3 federal specification 2nd treatment response

Test Data Document

81349-mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

Thread Series Designator

Unc

NSN

5305-00-702-3344

Part Number

A408305-4

Description

Screw,cap,socket Head

CAGE

80020

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part A408305-4 NSN 5305-00-702-3344

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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: 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