Model: ANSI B18.2.1

Lag Screw

Properties:

Fastener Length

2.500 inches

Head Style

Hexagon

Head Height

Between 0.195 inches and 0.235 inches

Width Between Flats

Between 0.484 inches and 0.500 inches

Shoulder Diameter

0.298 inches first shoulder and 0.324 inches first shoulder

Shoulder Length

0.125 inches first shoulder

Min. Tensile Strength (psi)

55000 pounds per square inch

Hardness Rating

60.0 rockwell b

Nonmachine Thread Style

Gimlet point (type a, ab or ba)

Nonmachine Thread Diameter

0.312 inches

Shoulder Shape

Round first shoulder

Material

Steel

Surface Treatment

Zinc

Surface Treatment Specification

Astm a153 assn standard single treatment response

NSN

5305-00-177-5505

Part Number

ANSI B18.2.1

Description

Screw,lag

CAGE

80204

An externally threaded fastener having a square or hexagon head and with a continuous thread (wood screw type or fetter type) extending from a gimlet or cone point for a distance of slightly more than one-half the length of the screw.

Part ANSI B18.2.1 NSN 5305-00-177-5505

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

36433

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