Bolts

South Coast Fasteners, Inc. offers a broad range of bolts designed to fit the exact needs of professionals across industries. Whether you’re working on construction, manufacturing, automotive, or large-scale infrastructure, our bolts deliver the strength and reliability your work demands. From standard hex bolts to specialized structural and anchor bolts, we provide fastening solutions built to last in the most demanding environments.

Types of Bolts

Hex Bolts

The workhorses of fastening, hex bolts feature a six-sided head that offers easy wrench grip and reliable tightening. Available in a wide range of sizes and materials, they are used in everything from steel building construction to machine assembly and general maintenance. Their versatility and strength make them a staple in nearly every industrial and commercial toolbox.

Carriage Bolts

These bolts are designed with a domed, smooth head and a square neck just under the head to prevent spinning once installed. Carriage bolts are perfect for wood-to-metal or metal-to-metal connections where a clean, tamper-resistant appearance is desired. They are commonly found in fencing, furniture, decking, and other applications where a flush finish is needed.

Structural Bolts

Heavy-duty structural bolts are built to handle the load demands of buildings, bridges, and steel-to-steel connections. They feature large hex heads and are paired with hardened washers and nuts for maximum load distribution. These bolts meet stringent specifications for strength and safety, making them essential in critical infrastructure work.

Tap Bolts

Tap bolts are fully threaded hex head bolts designed for threading into tapped holes or use with a matching nut. Their complete threading offers flexibility for fastening materials of varying thicknesses. These bolts are widely used in automotive, manufacturing, and machine assembly where strong clamping force is needed.

Lag Screws

Also referred to as lag bolts, these are heavy-duty wood fasteners with hex heads and coarse threading. Lag screws provide deep anchoring into wood, making them perfect for structural wood framing, decking, and heavy lumber projects. They’re also used in lag shields or expansion anchors for masonry applications.

Flange Screws

Flange screws feature an integrated washer-like flange beneath the head that distributes load across a broader surface. This reduces the chance of pull-through and eliminates the need for a separate washer. These bolts are often used in automotive and mechanical applications where vibration resistance and uniform pressure distribution are key.

Plow Bolts

Plow bolts are countersunk bolts with square necks that provide a flush surface after installation. Originally used in snow plows and earthmoving equipment, they are also ideal for applications requiring wear resistance and a smooth finished surface. The square neck prevents rotation during tightening for added reliability.

Step Bolts

Step bolts have wide, round heads and low-profile threading, often used in utility poles and steel frameworks where climbing or foot traffic occurs. Their flat tops and evenly spaced heads provide grip while maintaining structural integrity in steel tower and transmission line construction.

Elevator Bolts

Known for their large, flat heads and short shanks, elevator bolts are used to fasten conveyor belts and elevator buckets. Their broad head prevents pull-through and helps distribute the load evenly across soft or thin materials. They are common in agriculture, manufacturing, and bulk material handling systems.

Timber Bolts

Timber bolts, also called dome-head bolts, are designed for use in large wooden structures. The oversized domed head and square shoulder beneath it resist spinning and ensure secure fastening. Common in landscaping, timber framing, and boardwalk construction, they offer strength and aesthetics in one.

Square Head Bolts

These bolts feature a square-shaped head that allows for a wrench or pliers to grip tightly in confined spaces. They offer an old-school industrial look and are often used in restoration projects, heavy equipment, and woodworking where high torque is needed.

Anchor Bolts

Anchor bolts are designed to secure structural and mechanical elements to concrete foundations. They come in L-shaped, J-shaped, and straight configurations and are often embedded before the concrete is poured. Common in construction, manufacturing, and utility infrastructure, they provide permanent anchoring for columns, beams, and machinery.

Eye Bolts

Eye bolts have a looped head used to attach wire, cable, or rope. They are commonly found in lifting, rigging, tie-down, and marine applications. Depending on the eye style, they may be designed for vertical lifts, angled loads, or anchoring to structural frames.

Toggle Bolts

Toggle bolts are hollow-wall anchors designed for drywall, plaster, or panel installation. They use spring-loaded wings that open inside the wall cavity to provide a secure hold for medium-duty loads. Ideal for hanging shelving, fixtures, or brackets when a stud is not available.

Hanger Bolts

Hanger bolts feature machine threads on one end and wood threads on the other. They are used to mount hardware into wood surfaces while still allowing for the use of a nut or tapped insert. Applications include furniture, piping systems, and installing suspended components into beams or joists.

Material and Grades

Grade 2

Grade 2 bolts are made from low or medium carbon steel and are not heat-treated. They are used in light-duty fastening applications where high tensile strength is not required. These bolts are perfect for general-purpose use in automotive, home repair, and mild construction environments.

Grade 5

Grade 5 bolts are made from medium carbon steel that is quenched and tempered to increase strength. Common in automotive assemblies, machinery, and structural frames, these bolts offer a good balance between toughness and tensile strength for moderately demanding applications.

Grade 8

Grade 8 bolts are manufactured from medium carbon alloy steel and heat-treated for maximum strength. They are used in high-stress environments like heavy machinery, suspension systems, and structural joints where failure is not an option. They offer excellent tensile strength and wear resistance.

Stainless Steel

Stainless steel bolts provide corrosion resistance and are ideal for environments exposed to moisture, chemicals, or outdoor conditions. The most common types include 18-8 (Type 304), which is great for general rust resistance, and Type 316, which offers enhanced protection in marine or highly corrosive environments.

Alloy Steel

Alloy steel bolts are engineered for high strength and durability. They are heat-treated and commonly used in aerospace, automotive, and industrial equipment where high load capacity and wear resistance are essential.

Plating Options

Zinc Plating

Zinc plating provides a thin protective coating that prevents oxidation and rust. It offers a shiny silver finish and is suitable for indoor or mild outdoor environments. Zinc-plated bolts are commonly used in construction hardware, furniture, and general assemblies.

Hot-Dip Galvanizing

This process involves dipping the bolt in molten zinc for a thick, durable coating that offers superior corrosion resistance. Hot-dip galvanized bolts are perfect for harsh outdoor environments, such as bridges, highways, marine structures, and fencing.

Cadmium Plating

Though restricted in many industries due to environmental concerns, cadmium plating is still used in aerospace and defense sectors for its excellent corrosion resistance and lubricity. It provides a smooth, low-friction surface and is especially resistant to saltwater exposure.

Nickel Plating

Nickel plating offers moderate corrosion resistance with a bright metallic finish. Often used in decorative applications, electronics, and high-performance parts, it adds aesthetic appeal along with added surface hardness.

Chrome Plating

Chrome plating creates a highly reflective, corrosion-resistant surface that is often seen in automotive, motorcycle, and industrial hardware. It enhances appearance and provides a durable barrier against wear and oxidation.

Black Oxide Coating

Black oxide coating is a conversion finish that adds mild corrosion resistance while reducing glare and improving aesthetics. It’s commonly used in tools, firearms, and machinery components where function and visual appeal both matter.

Why Choose South Coast Fasteners?

With decades of experience in the fastener industry, South Coast Fasteners is committed to delivering top-quality products and unmatched service. We work closely with you to understand your specific needs and provide solutions tailored to your projects. Whether you’re a contractor, engineer, or DIYer, you can rely on us for bolts that get the job done right the first time. Our inventory is deep, our shipping fast, and our expertise ready whenever you need it. We are your trusted partner in fastening solutions across every industry.

Order Bolts Online Today

Explore our extensive selection of bolts online. Whether you need hex bolts, carriage bolts, structural bolts, or specialized fasteners, South Coast Fasteners is here to help you find exactly what you need. If you have questions about sizing, materials, or volume orders, reach out to our team, we’re ready to support your project with fast service and expert advice.