Machine Screw Nuts made from 18-8 Stainless Steel

Fractional Sizes of Brass Machine Screw Nuts – Corrosion-Resistant Fastening with Style

Brass machine screw nuts are widely used across electrical, industrial, plumbing, and decorative applications thanks to their excellent corrosion resistance, non-magnetic properties, and attractive appearance. Available in a broad range of fractional sizes, brass nuts provide reliable fastening while maintaining performance in environments where steel fasteners may corrode or react.

Understanding both the fractional sizing and the type of brass material used is key to selecting the right machine screw nut for your application.

Why Choose Brass Machine Screw Nuts?

Brass offers natural resistance to rust, moisture, and many chemicals, making it ideal for marine, plumbing, electrical, and outdoor applications. Brass nuts are also easy to machine and install, and their gold-toned finish makes them a popular choice where appearance matters.

Common Fractional Sizes of Brass Machine Screw Nuts

Small Fractional Sizes (#0 to #8)

Sizes #0 through #8 are commonly used in electronics, small appliances, lighting fixtures, and decorative hardware. These smaller brass nuts provide secure fastening while maintaining a clean, finished look.

Medium Fractional Sizes (#10 and 1/4")

#10 and 1/4" brass machine screw nuts are widely used in electrical installations, automotive components, HVAC systems, and general machinery. Their corrosion resistance ensures long-lasting performance in environments exposed to humidity or mild chemicals.

Large Fractional Sizes (5/16" to 3/8")

5/16" and 3/8" brass nuts are suitable for plumbing systems, industrial equipment, and mechanical assemblies where additional strength is required along with corrosion protection.

Heavy-Duty Sizes (1/2" and Larger)

For marine environments, outdoor structures, and heavy-duty installations, 1/2" and larger brass machine screw nuts provide dependable strength while resisting corrosion in harsh conditions.

Types of Brass Used in Machine Screw Nuts

Yellow Brass

• Approx. 70% copper / 30% zinc

• Excellent machinability and corrosion resistance

• Ideal for general-purpose applications

Red Brass

• Higher copper content for enhanced corrosion resistance

• Preferred for plumbing and marine applications

A Versatile, Corrosion-Resistant Fastener

With a wide range of fractional sizes and brass alloys, brass machine screw nuts offer dependable fastening for everything from light-duty electronics to demanding marine environments. Choosing the right size and brass type ensures long-lasting performance, strength, and visual appeal.