Model: 20X674

Ribbed Shoulder Bolt

Properties:

Thread Direction
Right-hand
Thread Length
1.000 inches
Fastener Length
2.469 inches
Head Style
Flat chamfer
Head Diameter
1.188 inches
Head Height
0.312 inches
Shoulder Diameter
0.835 inches first shoulder and 0.870 inches first shoulder
Shoulder Length
0.906 inches first shoulder
Rib Major Diameter
Between 0.870 inches and 0.880 inches
Rib Length
0.781 inches
Distance From Largest Diameter Of Bearing Surface Of Head To Ribs
0.125 inches
Rib Quantity
25
Thread Diameter
0.750 inches
Features Provided
Casehardened
Nonstandard Thread Pitch Diameter
+0.7054/+0.7094 inches
Thready Qty Per Inch (tpi)
16
Hardness Rating
18.0 rockwell c and 28.0 rockwell c
Shoulder Shape
Round first shoulder
Material
Steel comp 3120 or steel comp 8720
Material Specification
Aisi assn standard all material responses or sae assn standard all material responses
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification all treatment responses
Thread Series Designator
Unf
NSN
5306-00-798-8934
Part Number
20X674
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 20X674 NSN 5306-00-798-8934

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:
--
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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