Model: 738B1

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.584 inches and 0.604 inches
Fastener Length
Between 0.678 inches and 0.698 inches
Head Style
Hexagon
Head Height
Between 0.271 inches and 0.291 inches
Width Between Flats
Between 0.615 inches and 0.635 inches
Thread Diameter
0.438 inches
Grip Length
Between 0.084 inches and 0.104 inches
Features Provided
Unfinished head
Thready Qty Per Inch (tpi)
20
Hardness Rating
20.0 rockwell c and 27.0 rockwell c
Material
Steel comp 4130 or steel comp 8630
Material Specification
Qq-s-624 federal specification all material responses
Surface Treatment
Cadmium or zinc
Thread Series Designator
Unf
NSN
5306-00-737-3223
Part Number
738B1
Description
Bolt,machine
CAGE
56442

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 738B1 NSN 5306-00-737-3223

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:
50.0
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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