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Grade 8 Carbon Steel M8 Black Oxide Hex Nut, 0.63" Flats, Pkg Qty 100

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Industrial · SKU: AA6470924

Grade 8 Carbon Steel M8 Black Oxide Hex Nut, 0.63" Flats, Pkg Qty 100

This Grade 8 carbon steel hex nut is designed for high-strength industrial fastening applications. The M8 thread size and black oxide finish provide corrosion resistance, while the 0.

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$79.99
$0.80/each(100 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$79.99
11 - 50-5%$75.99
51+-10%$71.99
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Quick Answer

How Buyers Should Evaluate Grade 8 Carbon Steel M8 Black Oxide Hex Nut, 0.63" Flats, Pkg Qty 100

This Grade 8 carbon steel hex nut is designed for high-strength industrial fastening applications. The M8 thread size and black oxide finish provide corrosion resistance, while the 0. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • System of Measurement: Metric
  • Material Grade/Class: Grade 8
  • Material: Carbon Steel

Purchase Details

  • Online price starts at $79.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 100 / Each.
  • Lead time: 2-3 weeks.

Use RFQ When

  • Use RFQ when you need bulk pricing, alternate pack sizes, or multi-SKU comparison.
  • Request support when fit, material, or substitute selection needs confirmation before order.
  • Escalate to sourcing when timeline, freight, or stocking strategy matters more than one-off checkout speed.

Technical Specifications

System of MeasurementMetric
Material Grade/ClassGrade 8
MaterialCarbon Steel
Thread SizeM8
FinishBlack Oxide
Width Across Flats0.63 in
Product Details

Full Description

Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.

Overview

This Grade 8 carbon steel hex nut is engineered for demanding industrial fastening applications where high tensile strength and reliability are non-negotiable. Manufactured from 45# carbon steel and heat-treated to rigorous Grade 8 standards, it delivers exceptional durability and load-bearing capacity. The black oxide finish provides a layer of corrosion resistance for extended service life in challenging environments. With its standard M8 metric thread and precise 0.63-inch width across flats, this nut ensures seamless compatibility with corresponding bolts and standard wrenching tools. It is packaged in a bulk quantity of 100 units to support high-volume assembly and maintenance operations, reducing downtime and inventory complexity.

Key Features

Manufactured from heat-treated 45# carbon steel for superior strength Meets exacting Grade 8 performance specifications Black oxide surface finish for enhanced corrosion protection Precision-formed M8 metric threads for a secure, reliable fit 0.63-inch width across flats for compatibility with standard tools Bulk packaging of 100 units for operational efficiency and cost-effectiveness

Specifications

System of Measurement: Metric Material Grade/Class: Grade 8 Base Material: Carbon Steel Thread Size: M8 Surface Finish: Black Oxide Width Across Flats: 0.63 inches Package Quantity: 100 units

Applications

General heavy-duty machinery assembly and repair Structural steel fabrication and construction Automotive and transportation equipment manufacturing Industrial plant maintenance and infrastructure Agricultural and mining equipment build-outs Any application requiring a high-strength, metric-threaded fastener

Frequently Asked Questions

What are the key specifications and strength rating of this M8 hex nut?
This is a Grade 8 carbon steel hex nut with an M8 metric thread and a black oxide finish for corrosion resistance. It is rated for high-strength applications and measures 0.63 inches across the flats.
What are the typical applications for a Grade 8, black oxide M8 nut?
This nut is suitable for high-stress assemblies in machinery, automotive, and structural frameworks where vibration resistance and durability are critical. The black oxide finish provides a baseline layer of protection against rust in non-severe environments.
How are these nuts packaged, and what is the minimum order quantity?
These nuts are packaged in bulk quantities of 100 pieces per bag. This pack size is designed for production or maintenance use, providing a cost-effective supply for multiple assembly points or recurring needs.
Grade 8 Carbon Steel M8 Black Oxide Hex Nut, 0.63" Flats, Pkg Qty 100 | Machrio