Model: 20X408Z

Ribbed Shoulder Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.188 inches
Fastener Length
4.188 inches
Head Style
Flat chamfer
Head Diameter
1.938 inches
Head Height
0.312 inches
Shoulder Diameter
0.973 inches first shoulder and 0.977 inches first shoulder
Shoulder Length
2.688 inches first shoulder
Rib Major Diameter
Between 1.019 inches and 1.023 inches
Rib Length
Between 0.422 inches and 0.454 inches
Distance From Largest Diameter Of Bearing Surface Of Head To Ribs
0.375 inches
Rib Minor Diameter
Between 0.926 inches and 0.930 inches
Rib Quantity
36
Thread Diameter
0.750 inches
Features Provided
Casehardened
Thready Qty Per Inch (tpi)
16
Hardness Rating
223.0 brinell standard and 277.0 brinell standard
Rib Included Angle
90.0 degrees
Shoulder Shape
Ribbed first shoulder
Material
Steel comp 3120 or steel comp 8620h or steel comp 4620h or steel comp 8622h or steel comp 4427
Material Specification
Astm assn standard all material responses
Surface Treatment
Cadmium
Thread Series Designator
Unf
NSN
5306-00-741-1180
Part Number
20X408Z
Description
Bolt,ribbed Shoulder
CAGE
78500

An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.

Part 20X408Z NSN 5306-00-741-1180

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16014
FIIG:
A003B0
Concept No.:
App. Key:
BU
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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.9000lbs
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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