Model: MS16998-63

Socket Head Cap Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.125 inches
Fastener Length
1.750 inches
Head Style
Flat fillister
Head Diameter
Between 0.4580 inches and 0.4688 inches
Head Height
Between 0.3060 inches and 0.3125 inches
Internal Drive Style
Hexagon
Thread Diameter
0.3125 inches
Width Across Flats
Between 0.2500 inches and 0.2530 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
9100 pounds per square inch
Part Name Assigned By Controlling Agency
Bolt
Material
Steel
Surface Treatment
Cadmium
Thread Series Designator
Unf
NSN
5305-01-621-7739
Part Number
MS16998-63
Description
Screw,cap,socket Head
CAGE
96906

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 MS16998-63 NSN 5305-01-621-7739

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:
A
ESD:
A
MMAC:
CRITL:
X

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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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