Model: 12387306-8

Shoulder Screw

Special Features:

Head plain or knurled is acceptable; see sheet 2 of nasm51975

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.413 inches and 0.438 inches

Fastener Length

1.063 inches

Head Style

Knurled no. 1

Head Diameter

Between 0.419 inches and 0.438 inches

Head Height

Between 0.209 inches and 0.219 inches

Shoulder Diameter

0.308 inches all shoulders and 0.310 inches all shoulders

Shoulder Length

0.625 inches all shoulders

Shoulder Width Across Flats

0.093 inches all shoulders

Single Shear Strength

840000 pounds per square inch

Internal Drive Style

Hexagon

Thread Diameter

0.312 inches

Width Across Flats

0.156 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

140000 pounds per square inch

Shoulder Shape

Round all shoulders

Color

Bronze or olive drab

Material

Steel

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, typeii, class2 federal specification 1st treatment response

Thread Series Designator

Unc

NSN

5305-01-472-7167

Part Number

12387306-8

Description

Screw,shoulder

CAGE

19207

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 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 designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

Part 12387306-8 NSN 5305-01-472-7167

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22846

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