Slotted Hex Nuts

South Coast Fasteners, Inc. supplies slotted hex nuts that combine a classic hex shape with slots cut into the top for use with a cotter pin or safety wire. This design helps prevent the nut from loosening in applications where vibration or movement is a concern. Slotted hex nuts are commonly used in automotive, machinery, and structural assemblies that require extra security.

Order Premium Industrial Fasteners Today

Use the options below to order top-quality fasteners in the sizes and specifications you need. Questions about our fastener options? Contact our office in Anaheim, CA today, and our team will be happy to assist you. Whether you need repeat bulk orders or one-off small batch purchases, South Coast Fasteners has you covered for all your industrial fastener supplies.

Types of Slotted Hex Nuts We Offer

Hex Slotted Nut, Plain

Plain hex slotted nuts are used with cotter pins to lock bolts in place. Their untreated finish makes them economical and suited for indoor use or assemblies where exposure is limited. They are widely applied in automotive repair, machinery, and light-duty construction.

Hex Slotted Nut, Zinc CR+3

These nuts feature a zinc clear coating that protects against corrosion while maintaining strong locking action when paired with a cotter pin. They are ideal for assemblies exposed to moisture or wear, including agricultural equipment, automotive systems, and industrial machinery.

Heavy Hex Slotted Nut, Plain

Heavy hex slotted nuts provide a larger bearing surface and increased strength compared to standard slotted nuts. They are commonly used in bridges, steel construction, and heavy equipment. The plain surface is practical for use in shop fabrication or dry environments where corrosion resistance is not required.

Castle Nut, Plain

Castle nuts are a variation of slotted nuts with deeper slots that resemble the top of a castle. Used with cotter pins, they provide secure locking in assemblies exposed to vibration. They are a common choice in automotive, agricultural, and machinery applications where safety and reliability are paramount.

Material Options

South Coast Fasteners stocks slotted hex nuts in strong and reliable steel grades that ensure long-term performance.

Low Carbon Steel

Low carbon steel is commonly used for standard slotted nuts. It provides economical strength and is well-suited for applications such as automotive repair, light machinery, and equipment fastening.

Medium Carbon Steel

Medium carbon steel delivers higher strength and durability, making it suitable for heavy hex slotted nuts and castle nuts. This material is widely used in construction, agricultural equipment, and assemblies requiring resistance to vibration and heavy loads.

Available Finishes

South Coast Fasteners offers slotted hex nuts in practical finishes that protect against wear and extend service life.

Plain

Plain nuts are untreated, making them cost-effective and easy to install in controlled indoor environments. They are best suited for machinery, assembly lines, and dry applications.

Zinc Clear CR+3

Zinc clear plating protects against corrosion while maintaining a bright, metallic look. This finish is widely used in automotive, agricultural, and industrial assemblies where exposure to moisture is common.

Why Choose South Coast Fasteners?

South Coast Fasteners supplies slotted hex nuts designed for locking strength and long-term reliability. With options including standard slotted, heavy hex, and castle styles, customers can choose the nut best suited for their project requirements. Our wide inventory, knowledgeable staff, and commitment to dependable products make us a trusted partner across industries.

Order Slotted Hex Nuts Online Today

Order slotted hex nuts online today with South Coast Fasteners and get the right type, size, and finish delivered quickly. Whether for automotive repairs, agricultural equipment, or construction projects, our stocked supply ensures your fastening needs are covered without delays.