50pcs Stainless Steel UNC Hex Nuts – Sizes 2#-56 to 1/2-13

50-Pack Stainless Steel UNC Hex Nuts – Full Size Range 2#-56 to 1/2-13

Get the fasteners you need with this comprehensive 50-piece set of stainless steel hexagon nuts in Unified National Coarse (UNC) inch thread sizes. Whether you're tackling metalworking projects, machinery assembly, DIY builds, or precision repairs, these hex nuts deliver reliable holding strength and outstanding corrosion resistance in a single convenient pack.

Key Features

• Premium Stainless Steel Construction – Resists rust, corrosion, and oxidation for long-lasting performance indoors and outdoors.
• Full UNC Size Range – Available in: 2#-56, 4#-40, 6#-32, 8#-32, 10#-24, 1/4-20, 5/16-18, 3/8-16, 7/16-14, and 1/2-13 — one set covers most inch-thread applications.
• Standard Hex Profile – Compatible with standard wrenches and sockets for easy installation and removal.
• Quantity: 50 Pieces per Lot – Ideal for workshops, toolboxes, professional trades, and project stockpiles.
• CE Certified – Meets relevant product safety standards.
• Customizable – Custom sizing options are available; contact us for bulk or custom requirements.
• No High-Concern Chemicals – Material is free from high-concern substances.

Specifications

Perfect For

• Metalworking and fabrication projects
• Machine assembly and maintenance
• DIY home improvement and workshop repairs
• Electrical enclosures and panel assembly
• Automotive and mechanical builds
• Professional trades and contracting work

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Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What thread standard do these stainless steel hex nuts use?

A: These hex nuts use the UNC (Unified National Coarse) inch thread standard, which is the most widely used coarse-thread fastener standard in the United States and Canada. They are compatible with matching UNC bolts and screws across sizes 2#-56 through 1/2-13.

Q: Are these hex nuts suitable for outdoor or high-moisture environments?

A: Yes. The stainless steel construction provides excellent resistance to rust, corrosion, and oxidation, making them well-suited for both indoor and outdoor applications, including environments with exposure to moisture or humidity.

Q: How many pieces are included per size in the 50-piece lot?

A: The lot contains 50 pieces total, spread across the available UNC sizes (2#-56, 4#-40, 6#-32, 8#-32, 10#-24, 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13). Please contact us if you need a specific quantity of a particular size or require a custom configuration.

Q: What tools are needed to install these hex nuts?

A: A standard wrench, combination spanner, or socket set sized to match the corresponding hex flat-to-flat dimension of each nut is all that is required. No special tools are needed.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.