Model: 20X1254

Ribbed Shoulder Bolt

Properties:

Thread Direction
Right-hand
Thread Length
0.906 inches
Fastener Length
3.375 inches
Head Style
Flat chamfer
Head Diameter
1.375 inches
Head Height
Between 0.312 inches and 0.402 inches
Rib Major Diameter
Between 0.810 inches and 0.820 inches
Rib Length
0.500 inches
Distance From Largest Diameter Of Bearing Surface Of Head To Ribs
0.562 inches
Thread Diameter
0.750 inches
Nonstandard Thread Pitch Diameter
+0.7044/+0.7084 inches
Thready Qty Per Inch (tpi)
16
Shoulder Shape
Round first shoulder
Material
Steel
Material Specification
T and a div b14 grade 8 78500 mfr ref single material response
Thread Series Designator
Unf
NSN
5306-00-448-4000
Part Number
20X1254
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 20X1254 NSN 5306-00-448-4000

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:
0.4000lbs
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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