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High-Strength Steel Coupling Nut

Manufacturer part: 90331A557

Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.High-Strength Steel—Rated Grade 8 or Class 10, these are about 25% stronger than medium-strength steel coupling nuts. Use them with threaded rods that have a comparable strength rating to avoid stripping threads during installation. Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

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Technical data

Specifications

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ECCN
EAR99
Width
30 mm
Length
60 mm
Material
Zinc-Plated Steel
Nut Type
Hex, Coupling
Threading
Fully Threaded
Thread Fit
Metric Class 6H
Drive Style
External Hex
Performance
High Strength
Thread Size
M20
Thread Type
Metric
Thread Pitch
2.5 mm
Thread Spacing
Coarse
RoHS Compliance
RoHS 3 (2015/863/EU) Compliant
DFARS Compliance
Not Specialty Metals Compliant
REACH Compliance
REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant
Thread Direction
Right Hand
USMCA Qualifying
No
Country of Origin
United States
Schedule B Number
731816.0000
Specifications Met
DIN 6334
Coupling Nut Profile
Standard
System of Measurement
Metric
Fastener Strength Rating
High
Fastener Strength Grade/Class
ISO Class 10

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SupplierSupplier SKUPriceStockLead timeType
Approved Vendor90331A557$65.42 USDContact supplierContact supplierAuthorized · US distributor

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