Model: 3176207-C-170

Socket Head Cap Screw

Special Features:

Critical item hydrogen embrittlement relief required

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

1.250 inches

Fastener Length

4.000 inches

Head Style

Flat chamfer

Head Diameter

Between 0.550 inches and 0.562 inches

Head Height

Between 0.368 inches and 0.375 inches

Locking Feature

Patch threads

Internal Drive Style

Hexagon

Thread Diameter

0.375 inches

Width Across Flats

0.312 inches

Features Provided

Casehardened

Thready Qty Per Inch (tpi)

Hardness Rating

37.0 rockwell c and 45.0 rockwell c

Surface Finish

32.0 microinches bearing surface of head

Surface Finish

32.0 microinches threads

Material

Steel

Material Specification

Fed standard 66 federal standard single material response

Surface Treatment

Zinc

Surface Treatment Specification

Qq-z-325, type 2, class 3 federal specification single treatment response

Thread Series Designator

Unc

NSN

5305-01-062-4442

Part Number

3176207-C-170

Description

Screw,cap,socket Head

CAGE

10001

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 3176207-C-170 NSN 5305-01-062-4442

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:

0.2000lbs

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