Model: 591761-4

Socket Head Cap Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.780 inches
Fastener Length
0.830 inches
Head Style
Flat extended washer
Head Diameter
0.310 inches
Head Height
0.190 inches
Extended Washer Diameter
0.380 inches
Extended Washer Thickness
0.070 inches
Internal Drive Style
Hexagon
Thread Diameter
0.190 inches
Width Across Flats
Between 0.1562 inches and 0.1582 inches
Thready Qty Per Inch (tpi)
32
Hardness Rating
32.0 rockwell c and 38.0 rockwell c
Material
Stainless steel
Material Specification
Ams5616 assn standard single material response
Thread Series Designator
Unf
NSN
5305-00-945-8595
Part Number
591761-4
Description
Screw,cap,socket Head
CAGE

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 591761-4 NSN 5305-00-945-8595

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:
U
ESD:
ESD:
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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