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Fine-Thread Hex Nut, Grade 8 Carbon Steel, 2.2 in, Black Oxide, Pkg Qty 6

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Industrial · SKU: AE1866564

Fine-Thread Hex Nut, Grade 8 Carbon Steel, 2.2 in, Black Oxide, Pkg Qty 6

This fine-thread hex nut is manufactured from Grade 8 carbon steel, providing high tensile strength for demanding structural and machinery applications.

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$109.99
$18.33/each(6 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$109.99
11 - 50-5%$104.49
51+-10%$98.99
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Quick Answer

How Buyers Should Evaluate Fine-Thread Hex Nut, Grade 8 Carbon Steel, 2.2 in, Black Oxide, Pkg Qty 6

This fine-thread hex nut is manufactured from Grade 8 carbon steel, providing high tensile strength for demanding structural and machinery 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 8
  • Material: Carbon Steel

Purchase Details

  • Online price starts at $109.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 6 / 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 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 heavy-duty structural and machinery applications where superior tensile strength and reliable fastening are critical. Manufactured from high-grade carbon steel, it meets rigorous Grade 8 performance standards, ensuring integrity under high stress and load conditions. The fine-thread design provides enhanced precision for adjustment and offers greater resistance to loosening under vibration compared to coarse-thread alternatives. A protective black oxide finish is applied to inhibit rust and corrosion in demanding operational environments. This nut is supplied in a convenient six-pack, ideal for maintenance kits or multi-point assembly projects.

Key Features

Constructed from high-strength Grade 8 carbon steel Fine-thread (M56-4) design for precise adjustment and vibration resistance Black oxide finish for basic corrosion protection and a clean appearance 2.2-inch width across flats for secure, standard wrench engagement Package quantity of six for project efficiency

Specifications

System of Measurement: Metric Material Grade/Class: Grade 8

Material

Carbon Steel Thread Size: M56-4 Finish: Black Oxide Width Across Flats: 2.2 in Package Quantity: 6

Applications

Heavy machinery assembly and maintenance Structural steel construction and framing High-vibration equipment in industrial and manufacturing settings Infrastructure projects requiring high-strength bolted connections Repair and overhaul operations in maintenance, repair, and operations (MRO) facilities

Frequently Asked Questions

What are the key specifications for this fine-thread hex nut?
This is a metric M56-4 fine-thread hex nut made from Grade 8 carbon steel with a black oxide finish. It has a width across flats of 2.2 inches, indicating a large, heavy-duty fastener designed for high-strength applications.
What are the typical applications for a Grade 8, M56 fine-thread nut?
This high-strength nut is designed for critical, high-tension assemblies in heavy machinery, large structural frameworks, and industrial equipment where vibration resistance and reliable clamping force are essential. The fine thread (4mm pitch) provides superior adjustment precision and resistance to loosening compared to coarse threads.
How is this product packaged and sold?
This nut is sold in a package quantity of 6. The black oxide finish provides a mild layer of corrosion resistance for indoor or protected environments and is ready for installation upon receipt.
Fine-Thread Hex Nut, Grade 8 Carbon Steel, 2.2 in, Black Oxide, Pkg Qty 6 | Machrio