Model: ANSIB18.3-1976

Socket Head Cap Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.420 inches and 0.500 inches
Fastener Length
Between 0.470 inches and 0.500 inches
Head Style
Button
Head Diameter
Between 0.201 inches and 0.213 inches
Head Height
Between 0.051 inches and 0.059 inches
Internal Drive Style
Hexagon
Thread Diameter
0.112 inches
Width Across Flats
0.062 inches
Thready Qty Per Inch (tpi)
40
Hardness Rating
36.0 rockwell c and 45.0 rockwell c
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel
Thread Series Designator
Unc
NSN
5305-01-323-2914
Part Number
ANSIB18.3-1976
Description
Screw,cap,socket Head
CAGE
54517

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 ANSIB18.3-1976 NSN 5305-01-323-2914

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

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

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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