Hover to zoom
Industrial · SKU: AC9935655
Grade 8 Carbon Steel Hex Nut, M56-4 Fine Thread, 2.20 in, Black Oxide, Pkg Qty 6
This Grade 8 carbon steel hex nut is designed for high-strength, fine-threaded applications requiring reliable clamping force and corrosion resistance. The black oxide finish provides a durable protective layer.
Volume Pricing - Buy More, Save More
| Quantity | Discount | Unit Price |
|---|---|---|
| 1 - 10 | - | $79.99 |
| 11 - 50 | -5% | $75.99 |
| 51+ | -10% | $71.99 |
Free Shipping $200+
On qualifying orders
Fast DDP Delivery
Door-to-door service
24/7 Support
Expert assistance
Quick Answer
How Buyers Should Evaluate Grade 8 Carbon Steel Hex Nut, M56-4 Fine Thread, 2.20 in, Black Oxide, Pkg Qty 6
This Grade 8 carbon steel hex nut is designed for high-strength, fine-threaded applications requiring reliable clamping force and corrosion resistance. The black oxide finish provides a durable protective layer. 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: 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 Measurement | Metric |
| Material Grade/Class | Grade 8 |
| Material | Carbon Steel |
| Thread Size | M56-4 |
| Finish | Black Oxide |
| Width Across Flats | 2.20 in |
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 high-strength, fine-threaded bolting applications where superior clamping force and long-term reliability are critical. The M56-4 fine thread pitch allows for precise adjustment and a more secure, vibration-resistant connection compared to standard coarse threads. Featuring a durable black oxide finish, this nut provides a protective layer against corrosion in demanding industrial environments. Each package contains six nuts, providing a convenient supply for assembly and maintenance projects.
Key Features
Manufactured from high-strength Grade 8 carbon steel for exceptional durability and load-bearing capacity. M56-4 fine thread design enables precise tensioning and offers enhanced resistance to vibrational loosening. Protective black oxide finish provides a measure of corrosion resistance and a clean, professional appearance. Precision-machined for consistent thread engagement and reliable performance in critical assemblies. Width across flats of 2.20 inches allows for secure application of standard wrenches and sockets.
Specifications
System of Measurement: Metric Material Grade/Class: Grade 8
Material
Carbon Steel Thread Size: M56-4 Finish: Black Oxide Width Across Flats: 2.20 in Package Quantity: 6
Applications
Heavy machinery assembly and maintenance requiring high-strength fasteners. Structural steel connections in construction and infrastructure projects. Large-scale manufacturing equipment and industrial press installations. Repair and overhaul operations in transportation and energy sectors. Any application demanding the precise tensioning and secure hold of a fine-threaded, high-grade nut.