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Industrial · SKU: AA0220397
Grade 8 Carbon Steel Hex Nut, M56x4, 2.2 in, Black Oxide, Pkg Qty 6
This Grade 8 carbon steel hex nut is designed for high-strength, heavy-duty fastening applications.
Volume Pricing - Buy More, Save More
| Quantity | Discount | Unit Price |
|---|---|---|
| 1 - 10 | - | $89.99 |
| 11 - 50 | -5% | $85.49 |
| 51+ | -10% | $80.99 |
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Quick Answer
How Buyers Should Evaluate Grade 8 Carbon Steel Hex Nut, M56x4, 2.2 in, Black Oxide, Pkg Qty 6
This Grade 8 carbon steel hex nut is designed for high-strength, heavy-duty fastening 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: 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 | M56x4 |
| Finish | Black Oxide |
| Width Across Flats | 2.2 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 critical, high-strength fastening applications where reliability is paramount. Manufactured to the stringent GB6171 specification, it features a fine 4 mm pitch thread that provides exceptional resistance to vibration loosening and allows for precise adjustment in assemblies. The black oxide finish enhances surface corrosion resistance, making it suitable for use in demanding industrial environments. Supplied in a six-piece package, this nut offers convenience and efficiency for maintenance, repair, and production operations.
Key Features
Constructed from high-strength Grade 8 carbon steel for superior load-bearing capacity Fine 4 mm pitch thread design for enhanced vibration resistance and precise clamping Black oxide finish provides a durable layer of corrosion protection 2.2 inch width across flats ensures compatibility with standard wrenches and sockets Manufactured to meet GB6171 dimensional and performance standards Convenient six-piece package reduces downtime and supports project planning
Specifications
System of Measurement: Metric Material Grade/Class: Grade 8
Material
Carbon Steel Thread Size: M56x4 Finish: Black Oxide Width Across Flats: 2.2 in Package Quantity: 6
Applications
Heavy machinery and equipment assembly Structural steel fabrication and construction Industrial plant maintenance and repair High-vibration environments in transportation and manufacturing Infrastructure projects requiring high-strength bolted connections