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Grade 8 Carbon Steel Hex Nut, M42 x 3, 1.65 in, Black Oxide, Pkg Qty 12

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Industrial · SKU: AA0220394

Grade 8 Carbon Steel Hex Nut, M42 x 3, 1.65 in, Black Oxide, Pkg Qty 12

This Grade 8 carbon steel hex nut is designed for high-strength, precision applications. The black oxide finish provides corrosion resistance and a clean appearance.

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$79.99
$6.67/each(12 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 Hex Nut, M42 x 3, 1.65 in, Black Oxide, Pkg Qty 12

This Grade 8 carbon steel hex nut is designed for high-strength, precision applications. The black oxide finish provides corrosion resistance and a clean 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 $79.99.
  • 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 SizeM42 x 3
FinishBlack Oxide
Width Across Flats1.65 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, high-strength fastening applications where reliability is critical. Manufactured to the stringent GB6171 standard, it provides a precision fine-threaded connection for heavy machinery, structural assemblies, and industrial equipment. The black oxide finish enhances corrosion resistance and offers a uniform, non-reflective appearance suitable for both functional and finished applications. Supplied in a convenient package quantity of 12, this nut ensures you have the necessary components for efficient project completion and inventory management.

Key Features

Constructed from high-strength Grade 8 carbon steel for superior load-bearing capacity Fine thread pitch (M42 x 3) for improved adjustment precision and vibration resistance Black oxide finish provides a layer of corrosion protection and a professional look Manufactured to GB6171 dimensional standards for consistency and compatibility Package quantity of 12 supports batch assembly and reduces downtime

Specifications

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

Material

Carbon Steel Thread Size: M42 x 3 Finish: Black Oxide Width Across Flats: 1.65 inches Package Quantity: 12

Applications

Heavy-duty structural steel connections Assembly of large industrial machinery and presses Maintenance and repair in manufacturing and fabrication facilities Infrastructure projects requiring high-strength, fine-threaded fasteners General use in construction, transportation, and energy sectors where a robust nut is required

Frequently Asked Questions

What are the key specifications and dimensions of this hex nut?
This is a Grade 8 carbon steel hex nut with a black oxide finish. It has a metric fine thread (M42 x 3) and measures 1.65 inches across the flats.
What are the typical applications for a Grade 8, M42 fine thread nut?
This high-strength nut is designed for demanding structural, machinery, and heavy equipment applications where vibration resistance is critical. The fine thread provides superior clamping force and is often used in high-stress connections on large shafts, presses, or industrial frames.
How is this product packaged and sold?
This nut is sold in a package quantity of 12 units. The black oxide finish provides basic corrosion resistance for indoor or protected environments.
Grade 8 Carbon Steel Hex Nut, M42 x 3, 1.65 in, Black Oxide, Pkg Qty 12 | Machrio