Model: 838647

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.250 inches
Fastener Length
Between 0.344 inches and 0.406 inches
Head Style
Hexagon
Head Height
Between 0.151 inches and 0.161 inches
Width Between Flats
Between 0.428 inches and 0.438 inches
Locking Feature
Distortions bearing surface of head
Thread Diameter
0.250 inches
Grip Length
0.125 inches
Features Provided
Unfinished head
Thready Qty Per Inch (tpi)
20
Material
Steel comp 1211 or steel comp 1212 or steel comp 1035
Material Specification
Qq-s-633, canc federal specification 1st material response or qq-s-663, canc federal specification 2nd material response or 66 federal standard 3rd material response
Thread Series Designator
Unc
NSN
5306-00-449-6512
Part Number
838647
Description
Bolt,machine
CAGE
24617

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 838647 NSN 5306-00-449-6512

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:
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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