Model: 311481

Machine Bolt

Properties:

Thread Direction
Right-hand
Thread Length
Between 0.255 inches and 0.385 inches
Fastener Length
Between 0.710 inches and 0.730 inches
Head Style
Hexagon
Head Height
Between 0.178 inches and 0.198 inches
Width Between Flats
Between 0.492 inches and 0.502 inches
Shank Unthreaded Hole Diameter
0.065 inches all holes and 0.070 inches all holes
Thread Diameter
0.312 inches
Grip Length
Between 0.345 inches and 0.405 inches
Features Provided
Finished head
Nonstandard Thread Pitch Diameter
+0.2797/+0.2824 inches
Thready Qty Per Inch (tpi)
24
Hardness Rating
30.0 rockwell c and 38.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
0.600 inches all holes and 0.620 inches all holes
Surface Finish
32.0 microinches threads
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Material
Steel comp 601
Material Specification
Ams 6304 assn standard single material response
Surface Treatment
Nickel and cadmium
Surface Treatment Specification
Ams 2416 assn standard all treatment responses
Thread Series Designator
Uns
NSN
5306-00-531-8548
Part Number
311481
Description
Bolt,machine
CAGE
77445

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 311481 NSN 5306-00-531-8548

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

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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