Model: 77720-14-61

Machine Bolt

Special Features:

Mark p/n on head surface max 0.01o in. Deep

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
1.049 inches
Fastener Length
Between 4.8515 inches and 4.8715 inches
Head Style
Double hexagon
Head Height
0.469 inches
Width Between Flats
Between 1.239 inches and 1.252 inches
Shank Unthreaded Hole Diameter
0.136 inches first hole and 0.146 inches first hole
Thread Diameter
0.875 inches
Grip Length
Between 3.8025 inches and 3.8225 inches
Features Provided
Unfinished head
Thready Qty Per Inch (tpi)
14
Criticality Code Justification
Aasb and anee
Distance From Head Largest Bearing Surface To Shank Hole Center
4.727 inches first hole
Surface Finish
125.0 microinches grip
Surface Finish
125.0 microinches head
Material
Steel
Material Specification
Ams 5758 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unjf
NSN
5306-01-034-2582
Part Number
77720-14-61
Description
Bolt,machine
CAGE
56878

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

Part 77720-14-61 NSN 5306-01-034-2582

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01847
FIIG:
A003B0
Concept No.:
App. Key:
BR
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:
Y

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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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