Model: 20151

Ribbed Shoulder Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.946 inches

Fastener Length

2.280 inches

Head Style

Flat chamfer

Head Diameter

0.810 inches

Head Height

0.234 inches

Shoulder Diameter

0.593 inches first shoulder and 0.598 inches first shoulder

Shoulder Length

2.500 inches first shoulder

Rib Major Diameter

Between 0.614 inches and 0.619 inches

Rib Length

0.750 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

0.060 inches

Thread Diameter

0.500 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

130000 pounds per square inch

Hardness Rating

29.0 rockwell c and 36.0 rockwell c

Shoulder Shape

Ribbed first shoulder

Material

Steel comp 4140

Material Specification

Aisi assn standard single material response

Surface Treatment

Cadmium

Thread Series Designator

Unf

NSN

5306-00-701-9981

Part Number

20151

Description

Bolt,ribbed Shoulder

CAGE

52793

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 20151 NSN 5306-00-701-9981

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:

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