Model: 78163-63

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.309 inches and 0.391 inches

Fastener Length

Between 0.359 inches and 0.391 inches

Head Style

Flat chamfer

Head Diameter

Between 0.218 inches and 0.226 inches

Head Height

Between 0.134 inches and 0.138 inches

Hole Diameter

0.036 inches

Internal Drive Style

Hexagon

Thread Diameter

0.138 inches

Width Across Flats

0.109 inches

Hole Quantity

Hole Type

Drilled

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

170000 pounds per square inch

Hardness Rating

38.0 rockwell c and 45.0 rockwell c

Hardness Rating

38.0 rockwell c and 45.0 rockwell c

Hole Configuration Style

Round internal hexagon

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 410

Material Specification

Qq-s-763 federal specification single material response

Thread Series Designator

Unf

NSN

5305-00-447-6568

Part Number

78163-63

Description

Screw,cap,socket Head

CAGE

11599

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 78163-63 NSN 5305-00-447-6568

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:

096640

UFC:

50600

LTL:

70.0

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