Model: 20X403

Ribbed Shoulder Bolt

Properties:

Thread Class

Thread Direction

Left-hand

Thread Length

1.187 inches

Fastener Length

2.562 inches

Head Style

Flat chamfer

Head Diameter

1.312 inches

Head Height

0.312 inches

Shoulder Diameter

0.971 inches first shoulder and 0.976 inches first shoulder

Shoulder Length

0.940 inches first shoulder

Rib Major Diameter

Between 0.998 inches and 1.008 inches

Rib Length

Between 0.560 inches and 0.622 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

0.280 inches

Rib Minor Diameter

Between 0.926 inches and 0.930 inches

Rib Quantity

Thread Diameter

0.750 inches

Thready Qty Per Inch (tpi)

Rib Included Angle

90.0 degrees

Shoulder Shape

Ribbed first shoulder

Material

Steel

Surface Treatment

Cadmium and chromate

Thread Series Designator

Unf

NSN

5306-00-206-6339

Part Number

20X403

Description

Bolt,ribbed Shoulder

CAGE

72865

An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.

Part 20X403 NSN 5306-00-206-6339

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16014

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.7000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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