Model: 3176207-C-345

Socket Head Cap Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 2.309 inches and 2.500 inches
Fastener Length
Between 2.420 inches and 2.500 inches
Head Style
Flat chamfer
Head Diameter
Between 0.921 inches and 0.938 inches
Head Height
Between 0.616 inches and 0.625 inches
Locking Feature
Patch threads
Internal Drive Style
Hexagon
Thread Diameter
0.625 inches
Width Across Flats
0.500 inches
Thready Qty Per Inch (tpi)
18
Min. Tensile Strength (psi)
170000 pounds per square inch
Hardness Rating
37.0 rockwell c and 45.0 rockwell c
Surface Finish
32.0 microinches threads
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Part Name Assigned By Controlling Agency
Navy special project
Material
Plastic polyamide locking feature
Material
Steel fastener
Surface Treatment
Zinc fastener and chromate fastener
Surface Treatment Specification
Astm b633 type 2 cl 3 assn standard single treatment response fastener
Thread Series Designator
Unf
NSN
5305-01-274-9700
Part Number
3176207-C-345
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-345 NSN 5305-01-274-9700

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
096640
UFC:
50600
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
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

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