Model: 13000-256F28

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.392 inches and 0.448 inches

Fastener Length

Between 0.428 inches and 0.448 inches

Head Style

Flat chamfer

Head Diameter

Between 0.134 inches and 0.140 inches

Head Height

Between 0.083 inches and 0.086 inches

Internal Drive Style

Hexagon

Thread Diameter

0.086 inches

Width Across Flats

Between 0.076 inches and 0.078 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

70000 pounds per square inch

Hardness Rating

80.0 rockwell b and 85.0 rockwell b

Material

Steel comp 303

Material Specification

Astm a582 assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Mil-t-704 military specification single treatment response

Thread Series Designator

Unf

NSN

5305-01-112-7903

Part Number

13000-256F28

Description

Screw,cap,socket Head

CAGE

1K426

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 13000-256F28 NSN 5305-01-112-7903

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