Model: 6441

Ribbed Neck Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.859 inches and 0.891 inches
Fastener Length
Between 1.375 inches and 1.391 inches
Head Style
Flat chamfer
Head Diameter
Between 0.688 inches and 0.750 inches
Head Height
Between 0.182 inches and 0.192 inches
Rib Major Diameter
Between 0.405 inches and 0.410 inches
Rib Length
Between 0.287 inches and 0.329 inches
Thread Diameter
0.375 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
120000 pounds per square inch
Hardness Rating
28.0 rockwell c and 36.0 rockwell c
Material
Steel comp 4140
Material Specification
Sae assn standard single material response
Surface Treatment
Cadmium and chromate or zinc and chromate
Thread Series Designator
Unf
NSN
5306-00-497-3173
Part Number
6441
Description
Bolt,ribbed Neck
CAGE
52793

A headed externally threaded fastener whose threaded portion is of one nominal diameter with a series of longitudinal ribs, splines or serrations on all or part of the unthreaded portion. See also bolt, ribbed shoulder.

Part 6441 NSN 5306-00-497-3173

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15940
FIIG:
A003B0
Concept No.:
App. Key:
BT
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:
0.2000lbs
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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