Model: 7403744

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.500 inches and 0.530 inches
Fastener Length
Between 1.780 inches and 1.810 inches
Head Style
Hexagon
Head Height
Between 0.180 inches and 0.200 inches
Width Between Flats
Between 0.490 inches and 0.502 inches
Shank Unthreaded Hole Diameter
0.074 inches first hole and 0.079 inches first hole
Thread Diameter
0.312 inches
Grip Length
Between 1.250 inches and 1.310 inches
Features Provided
Finished head
Thready Qty Per Inch (tpi)
24
Hardness Rating
26.0 rockwell c and 32.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
1.650 inches first hole and 1.670 inches first hole
Material
Steel comp 8640 or steel comp 8740 or steel comp 4140
Material Specification
Astm a547 assn standard 1st material response or astm a331 assn standard 2nd material response or astm a547 assn standard 3rd material response
Surface Treatment
Cadmium or zinc
Surface Treatment Specification
Qq-p-416 type 1, cl 3 federal specification 1st treatment response or qq-z-325 type 2, cl 3 federal specification 2nd treatment response
Thread Series Designator
Unf
NSN
5306-00-281-1014
Part Number
7403744
Description
Bolt,machine
CAGE
19207

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 7403744 NSN 5306-00-281-1014

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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