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Fine-Thread Alloy Steel Hex Nut, Grade 12, M56-4, 2.2 in, Black Oxide, Pkg Qty 2

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Industrial · SKU: AE1866654

Fine-Thread Alloy Steel Hex Nut, Grade 12, M56-4, 2.2 in, Black Oxide, Pkg Qty 2

This fine-thread hex nut is manufactured from high-strength alloy steel, meeting Grade 12 classification for demanding structural and industrial applications.

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$49.99
$25.00/each(2 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$49.99
11 - 50-5%$47.49
51+-10%$44.99
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Quick Answer

How Buyers Should Evaluate Fine-Thread Alloy Steel Hex Nut, Grade 12, M56-4, 2.2 in, Black Oxide, Pkg Qty 2

This fine-thread hex nut is manufactured from high-strength alloy steel, meeting Grade 12 classification for demanding structural and industrial applications. 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 12
  • Material: Alloy Steel

Purchase Details

  • Online price starts at $49.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 2 / 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 12
MaterialAlloy Steel
Thread SizeM56-4
FinishBlack Oxide
Width Across Flats2.2 in
Product Details

Full Description

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

Overview

This fine-thread hex nut is engineered for the most demanding structural and industrial fastening applications where superior strength and vibration resistance are non-negotiable. Manufactured from high-grade alloy steel and heat-treated to achieve a Grade 12 classification, it provides exceptional clamp load and durability. The M56-4 fine thread profile offers increased thread engagement and a tighter pitch, significantly enhancing resistance to loosening under dynamic loads and vibration compared to coarse-thread alternatives. A protective black oxide finish is applied to inhibit corrosion in typical service environments. This product is supplied in a convenient package quantity of two.

Key Features

Manufactured from high-strength alloy steel, heat-treated to Grade 12 Fine-thread (M56-4) design for maximum vibration resistance and thread engagement Black oxide finish provides a durable layer of corrosion protection Precision-machined for consistent thread fit and reliable performance Designed for use with high-strength bolts in critical tension joints

Specifications

System of Measurement: Metric Material Grade/Class: Grade 12

Material

Alloy Steel Thread Size: M56-4 Finish: Black Oxide Width Across Flats: 2.2 in Package Quantity: 2

Applications

Heavy structural steel construction and framing High-stress machinery and equipment assembly Infrastructure projects including bridges and power generation Manufacturing of industrial presses, conveyors, and large-scale fabrications Any application requiring a high-strength, vibration-resistant fastener in a metric thread format

Frequently Asked Questions

What are the key specifications and dimensions for this fine-thread hex nut?
This is a metric fine-thread (M56-4) hex nut made from Grade 12 alloy steel with a black oxide finish. It has a width across flats of 2.2 inches and is designed for high-strength applications requiring a fine thread pitch.
What are the typical applications or use cases for this Grade 12 alloy steel nut?
Grade 12 alloy steel nuts are used in high-stress, critical fastening applications such as heavy machinery, structural steelwork, and industrial equipment where superior tensile strength and reliability are required. The black oxide finish provides mild corrosion resistance and a clean appearance.
How is this product packaged and what is the minimum order quantity?
This nut is sold in a package quantity of 2. Please contact our sales team for specific pallet quantities, bulk pricing, and custom packaging options for larger project requirements.
Fine-Thread Alloy Steel Hex Nut, Grade 12, M56-4, 2.2 in, Black Oxide, Pkg Qty 2 | Machrio