Model: 138391

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

2.250 inches

Fastener Length

2.250 inches

Head Style

Flat chamfer

Head Diameter

Between 1.107 inches and 1.125 inches

Head Height

Between 0.740 inches and 0.750 inches

Internal Drive Style

Hexagon

Thread Diameter

0.750 inches

Width Across Flats

Between 0.625 inches and 0.631 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

160000 pounds per square inch

Hardness Rating

36.0 rockwell c and 43.0 rockwell c

Minimum Yield Strength

130000 pounds per square inch

Surface Finish

125.0 microinches bearing surface of head

Material

Steel

Material Specification

66 federal standard single material response

Thread Series Designator

Unc

Nondefinitive Specification/std Data

6 type

NSN

5305-00-272-7172

Part Number

138391

Description

Screw,cap,socket Head

CAGE

24617

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part 138391 NSN 5305-00-272-7172

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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:

713

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