Model: 77720-14-61

Machine Bolt

Special Features:

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

Properties:

Thread Class

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)

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:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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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