Model: 12W2988-31

Shoulder Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.427 inches

Fastener Length

1.524 inches

Head Style

Hexagon

Head Height

0.125 inches

Width Between Flats

0.562 inches

Shoulder Diameter

0.374 inches first shoulder

Shoulder Length

1.097 inches first shoulder

Shank Unthreaded Hole Diameter

0.076 inches first hole

Thread Diameter

0.312 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

210000 pounds per square inch

Distance From Head Largest Bearing Surface To Shank Hole Center

1.354 inches first hole

Shoulder Shape

Round first shoulder

Material

Steel comp 4340 or steel comp e4340

Material Specification

Mil-s-5000 military specification all material responses

Surface Treatment

Cadmium

Thread Series Designator

Unf

NSN

5306-00-930-3075

Part Number

12W2988-31

Description

Bolt,shoulder

CAGE

81755

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.

Part 12W2988-31 NSN 5306-00-930-3075

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

04905

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:

0.1000lbs

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