Model: B18.5

Square Neck Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

1.000 inches

Fastener Length

Between 2.469 inches and 2.531 inches

Head Style

Round

Head Diameter

Between 0.782 inches and 0.844 inches

Head Height

Between 0.188 inches and 0.208 inches

Neck Length

Between 0.188 inches and 0.219 inches

Thread Diameter

0.375 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

55000 pounds per square inch

Hardness Rating

95.0 rockwell b

Neck Width

Between 0.368 inches and 0.388 inches

Material

Steel

Material Specification

Sae gr 1 assn standard single material response

Surface Treatment

Zinc

Surface Treatment Specification

Astm b633 assn standard single treatment response

Thread Series Designator

Unc

NSN

5306-00-702-4484

Part Number

B18.5

Description

Bolt,square Neck

CAGE

80204

A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

Part B18.5 NSN 5306-00-702-4484

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15939

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:

WCC:

573

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