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Fine-Thread Hex Nut, Grade 8 Carbon Steel, M45-3, 1.772" Flats, Black Oxide, Pkg Qty 12

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Industrial · SKU: AE1866559

Fine-Thread Hex Nut, Grade 8 Carbon Steel, M45-3, 1.772" Flats, Black Oxide, Pkg Qty 12

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

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$89.99
$7.50/each(12 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 Fine-Thread Hex Nut, Grade 8 Carbon Steel, M45-3, 1.772" Flats, Black Oxide, Pkg Qty 12

This fine-thread hex nut is manufactured from Grade 8 carbon steel, providing high tensile strength for demanding industrial and structural 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 $89.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 12 / 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 SizeM45-3
FinishBlack Oxide
Width Across Flats1.772 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 critical structural and heavy machinery applications where superior vibration resistance and high clamping force are paramount. Manufactured from high-strength carbon steel and heat-treated to Grade 8 standards, it delivers exceptional tensile strength and reliable performance under extreme loads and stress. The durable black oxide finish provides a layer of corrosion protection for extended service life in demanding environments. This nut is packaged in a quantity of 12 for convenient project use and inventory management.

Key Features

Manufactured from high-strength Grade 8 carbon steel Fine M45-3 thread pitch for enhanced vibration resistance Durable black oxide finish for corrosion protection Precision-machined for consistent thread engagement and reliable torque 1.772-inch width across flats for compatibility with standard metric wrenches

Specifications

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

Material

Carbon Steel Thread Size: M45-3 Finish: Black Oxide Width Across Flats: 1.772 inches Package Quantity: 12

Applications

Heavy structural steel construction and framing High-vibration machinery and engine assembly Large-scale industrial equipment manufacturing Infrastructure projects including bridges and supports Maintenance and repair of large-bolt fastening systems

Frequently Asked Questions

What are the key specifications for this fine-thread hex nut, and what does 'Grade 8' mean for my application?
This is a metric M45-3 fine-thread nut with a width across flats of 1.772 inches, made from carbon steel with a black oxide finish. 'Grade 8' indicates a high-strength material class suitable for demanding, high-stress applications where reliable clamping force and resistance to vibration are critical.
What are the typical use cases for a fine-thread nut of this size and strength?
This M45-3 fine-thread Grade 8 nut is designed for precision assembly in heavy machinery, large structural frameworks, and high-pressure vessel connections. The fine thread provides superior adjustment precision and better resistance to loosening under vibration compared to coarse threads, making it ideal for critical, load-bearing joints.
How is this product packaged and sold? Is there a minimum order quantity?
This nut is sold in a convenient package quantity of 12 units. There is no minimum order requirement beyond a single package, allowing you to purchase the exact number needed for your project or maintenance spares without excess inventory.
Fine-Thread Hex Nut, Grade 8 Carbon Steel, M45-3, 1.772" Flats, Black Oxide, Pkg Qty 12 | Machrio