Model: 781E557 PC65

Socket Head Cap Screw

Special Features:

Optional knurled head

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

1.500 inches

Fastener Length

3.260 inches

Head Style

Flat chamfer

Head Diameter

0.750 inches

Head Height

Between 0.485 inches and 0.515 inches

Internal Drive Style

Hexagon

Thread Diameter

0.500 inches

Width Across Flats

0.375 inches

Thready Qty Per Inch (tpi)

Material

Steel comp 4037 or steel comp 4140 or steel comp 4140h or steel comp 4142 or steel comp 4142h or steel comp 4145 or steel comp 8735 or steel comp 8740

Thread Series Designator

Unc

NSN

5305-01-288-9357

Part Number

781E557 PC65

Description

Screw,cap,socket Head

CAGE

01289

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 781E557 PC65 NSN 5305-01-288-9357

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:

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:

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