Model: 91251A863

Socket Head Cap Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.875 inches
Fastener Length
8.000 inches
Head Style
Flat chamfer
Head Diameter
Between 1.107 inches and 1.125 inches
Head Height
Between 0.740 inches and 0.750 inches
Internal Drive Style
Hexagon
Thread Diameter
0.750 inches
Width Across Flats
0.625 inches
Thready Qty Per Inch (tpi)
10
Min. Tensile Strength (psi)
170000 pounds per square inch
Hardness Rating
38.0 rockwell c and 45.0 rockwell c
Color
Black
Material
Steel
Material Specification
Sae j429 gr 8 assn standard single material response
Surface Treatment
Oxide
Thread Series Designator
Unc
NSN
5305-01-424-8700
Part Number
91251A863
Description
Screw,cap,socket Head
CAGE
39428

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 91251A863 NSN 5305-01-424-8700

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:
BA
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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