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Grade 8 Carbon Steel Hex Nut, 1.181 in, Black Oxide, Pkg Qty 36

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Industrial · SKU: AE1827568

Grade 8 Carbon Steel Hex Nut, 1.181 in, Black Oxide, Pkg Qty 36

This Grade 8 carbon steel hex nut is designed for high-strength, heavy-duty industrial fastening applications. The black oxide finish provides corrosion resistance and a professional appearance.

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$89.99
$2.50/each(36 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$89.99
11 - 50-5%$85.49
51+-10%$80.99
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Quick Answer

How Buyers Should Evaluate Grade 8 Carbon Steel Hex Nut, 1.181 in, Black Oxide, Pkg Qty 36

This Grade 8 carbon steel hex nut is designed for high-strength, heavy-duty industrial fastening applications. The black oxide finish provides corrosion resistance and a professional appearance. 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 $89.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 36 / 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 SizeM30×3.5
FinishBlack Oxide
Width Across Flats1.181 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 critical, high-strength fastening in demanding industrial and construction environments. As a heavy pattern nut, it features a greater thickness compared to standard hex nuts, providing increased bearing surface for superior load distribution and reduced risk of embedding into the joined material. The black oxide finish offers a layer of protection against corrosion while maintaining a clean, professional appearance. Manufactured to rigorous Grade 8 standards, this component delivers consistent mechanical properties and reliable performance in high-tension and high-vibration assemblies.

Key Features

Manufactured from high-strength carbon steel to Grade 8 specifications Heavy pattern design for enhanced load-bearing capacity and durability Black oxide finish for corrosion resistance and a non-reflective surface Precision-cut metric threads (M30) ensure a secure, reliable fit Wrench flats are machined to exact tolerances for easy installation

Specifications

Material: Carbon Steel Material Grade/Class: Grade 8 Thread Size: M30 x 3.5 Width Across Flats: 1.181 inches Finish: Black Oxide System of Measurement: Metric Package Quantity: 36 units

Applications

Structural steel fabrication and heavy construction Machinery and equipment manufacturing requiring high-strength connections Industrial maintenance, repair, and operations (MRO) for critical assemblies Infrastructure projects including bridges and framework Any application demanding a high-strength, thick pattern nut for secure bolted joints

Frequently Asked Questions

What are the exact dimensions and specifications for this Grade 8 hex nut?
This is a heavy pattern (thick) hex nut with a metric M30×3.5 thread. It has a width across flats of 1.181 inches, is made from Grade 8 carbon steel for high strength, and features a black oxide finish for corrosion resistance.
What are the typical applications for this heavy pattern Grade 8 nut?
Its Grade 8 strength and thick design make it suitable for high-stress, heavy-duty connections in construction, machinery, structural steel, and industrial equipment. It is commonly used with matching high-strength bolts in critical bolted joints.
How is this nut packaged and sold?
This nut is sold in a bulk package containing 36 individual pieces. Please note that the listed thread size (M30×3.5) is metric, but the corresponding wrench size (1.181 inches across flats) is provided for tool compatibility.
Grade 8 Carbon Steel Hex Nut, 1.181 in, Black Oxide, Pkg Qty 36 | Machrio