Model: 158798

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.305 inches and 0.369 inches
Fastener Length
Between 1.343 inches and 1.375 inches
Head Style
Round w/wrench flats chamfered
Head Diameter
0.875 inches
Head Height
Between 0.234 inches and 0.266 inches
Width Between Flats
Between 0.738 inches and 0.752 inches
Shank Unthreaded Hole Diameter
0.106 inches first hole
Thread Diameter
0.500 inches
Grip Length
Between 0.921 inches and 0.953 inches
Features Provided
Finished head
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
160000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center
1.171 inches first hole and 1.203 inches first hole
Surface Finish
100.0 microinches grip
Surface Finish
100.0 microinches threads
Material
Steel comp 8740
Surface Treatment
Cadmium
Thread Series Designator
Unf
NSN
5306-00-637-1597
Part Number
158798
Description
Bolt,machine
CAGE
13002

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 158798 NSN 5306-00-637-1597

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:
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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