Model: 3176207-B-127

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 1.849 inches and 2.000 inches

Fastener Length

Between 1.960 inches and 2.000 inches

Head Style

Flat chamfer

Head Diameter

Between 0.457 inches and 0.469 inches

Head Height

Between 0.306 inches and 0.312 inches

Hole Diameter

Between 0.044 inches and 0.050 inches

Internal Drive Style

Hexagon

Thread Diameter

0.312 inches

Width Across Flats

0.250 inches

Hole Quantity

Hole Type

Drilled

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

180000 pounds per square inch

Hardness Rating

38.0 rockwell c and 45.0 rockwell c

Hole Configuration Style

Round internal hexagon

Surface Finish

32.0 microinches threads

Surface Finish

63.0 microinches bearing surface of head

Material

Steel

Surface Treatment

Zinc and chromate

Surface Treatment Specification

Astm b633 type 2 cl 3 assn standard single treatment response

Thread Series Designator

Unc

NSN

5305-01-274-4479

Part Number

3176207-B-127

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-B-127 NSN 5305-01-274-4479

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:

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