Model: B18.3.4M-3X0.5X4.0 SBHCS ZINC

Socket Head Cap Screw

Properties:

Thread Direction

Right-hand

Thread Length

3.9 millimeters

Fastener Length

4.0 millimeters

Head Style

Button

Head Diameter

Between 5.4 millimeters and 5.7 millimeters

Head Height

Between 1.4 millimeters and 1.7 millimeters

Internal Drive Style

Hexagon

End Application

6115-01-561-7634

Thread Diameter

3.0 millimeters

Width Across Flats

2.0 millimeters

Thread Pitch In Millimeters

0.5

External Thread Tolerance Class

Part Name Assigned By Controlling Agency

Screw, cap, socket button head, metric

Material

Steel

Material Specification

Sae j429 gr5.1 national specification single material response

Surface Treatment

Zinc

Surface Treatment Specification

Astm b633, ty ii, sc 1 assn standard single treatment response

Thread Series Designator

NSN

5305-01-602-1871

Part Number

B18.3.4M-3X0.5X4.0 SBHCS ZINC

Description

Screw,cap,socket Head

CAGE

80204

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 B18.3.4M-3X0.5X4.0 SBHCS ZINC NSN 5305-01-602-1871

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:

096640

UFC:

50600

LTL:

70.0

LCL:

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