Model: MBT50-4-27

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.512 inches
Fastener Length
2.199 inches
Head Style
Double hexagon extended washer
Head Height
Between 0.290 inches and 0.310 inches
Width Between Flats
Between 0.428 inches and 0.438 inches
Extended Washer Diameter
0.3125 inches
Extended Washer Thickness
Between 0.069 inches and 0.079 inches
Grip Diameter
Between 0.2641 inches and 0.2651 inches
Thread Diameter
0.250 inches
Grip Length
1.687 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
180000 pounds per square inch
Material
Steel
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type ii, class 2 federal specification single treatment response
Thread Series Designator
Unjf
NSN
5306-01-605-3397
Part Number
MBT50-4-27
Description
Bolt,machine
CAGE
73197

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 MBT50-4-27 NSN 5306-01-605-3397

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:
A
ESD:
A
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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