Socket Screws
South Coast Fasteners, Inc. is your trusted source for socket screws and a full lineup of fasteners and industrial supplies, all manufactured to meet the everyday demands of the world. From heavy-duty construction sites to manufacturing lines and everything in between, we supply products that hold under pressure and perform.
Socket screws, also known as Allen or hex socket screws, are built for professionals who don’t have time for failure. With an internal hex drive and a low-profile, cylindrical head, they’re made for tight corners and clean installs where standard fasteners fall short. Flat point socket screws deliver solid tool engagement, better torque transfer, and a secure fit that stays locked in. If you need extra protection, Hex and torx head designs help guard against tampering and keeps your work safe and your equipment secure. At South Coast Fasteners, we understand that the right socket screw makes all the difference. This isn’t just about hardware, it’s about keeping your operation running smoothly, safely, and on schedule.
Browse our full online inventory of socket screws and find exactly what your application calls for. Scroll past our product selection for a full breakdown on socket screw types, best-fit applications, and industry-specific use case so you can buy with confidence and build without compromise. Find out today why South Coast Fasteners is the preferred choice for your fastener and industrial supply needs!
Socket Head Cap Screws: These are the go-to in high-torque and low-clearance applications where strength is needed. Designed with a cylindrical head and internal hex socket, they’re easy to install with a standard Allen key. These are used everywhere from heavy machinery to automotive lines and aerospace assemblies.
Flat Socket Cap: Designed to sit flush with the surface, it's a top pick in builds where aesthetics matter or where protruding hardware isn't acceptable. They’re commonly used in electronics, machinery assemblies, and anywhere a clean finish is necessary.
Button Socket Cap: Feature a rounded, low-profile head with a hex socket drive. They're usually the choice for visible applications such as furniture, equipment panels, or automotive interiors.
Low Head Socket Cap: Offer the same strength as standard socket cap screws with a slimmer head height. Perfect for low-clearance installs in electronics, compact machinery, or tight engine compartments.
Socket Shoulder Cap Screws: Also known as shoulder bolts, have a machined shoulder between the head and the threaded portion. They're made for rotating or sliding applications and used in moving parts, pivot points, and alignment fixtures.
Pipe Plugs: Utilized in sealing off the ends of piping systems. With tapered threads and grip, they’re the preferred choice in hydraulic, pneumatic, and plumbing systems. These keep systems leak-free and running tight in industrial and maintenance settings.
Cup Point Set Screws: These screws have a cup-shaped indentation (cup point) on the end opposite the head. The cup point digs into the mating surface when tightened and provides a secure hold. Most often utilized in machinery, automotive, and equipment assembly for securing components onto shafts without causing any damage.
Oval Point Set Screws: Similar to cup point set screws, but with an oval-shaped indentation on the end. Oval point set screws offer a slightly different contact surface, which may be used as an advantage in applications such as fixtures, machinery, and equipment assembly. It prevents tampering, ensuring security in any setting.
Dog Set Screws: Dog set screws have a flat, long tip instead of a pointed or cup-shaped end. They are used in gear and pulley assemblies and provide a strong grip on shafts without causing any surface damage. It is widely used in machinery and automotive industries.
Flat Point Set Screws: These set screws have a flat tip at the end, providing a larger contact surface area compared to cup or oval point set screws. They are utilized in machinery, equipment, and woodworking applications where a flush surface is required.
Nylon Tip Set Screws: Set screws with a nylon tip at the end, which provides a non-marring, vibration-resistant grip. They are most commonly used in applications that protect delicate surfaces in furniture assembly, machinery, and electronics applications, preventing damage.
Brass Tip Set Screws: Similair to nylon tip set screws, but with a brass tip. Brass tip set screws offer similar benefits while providing differing aesthetic and material compatbilities. By offering corrosion resistance and electrical conductivity, these screws are the preferred choice in electronics, marine & offshore, and automotive industries where non-ferrous materials are necessary.
Knurled Cup Set Screws: Sety screws that feature a textured inner cup for extra bite. The knurled surface helps grip softer materials or parts that may see movement, offering strong hold. They are utilized in applications allowing for hand tightening without the need for additional tools, usually in automotive and equipment assembly.
Slotted Set Screws: Set screws with a slot on the top of the head, which are compatible for tightening with a flat screwdriver. They are used in applications where using a hex key or wrench is limited.
Square Head Set Screws: These set screws have a square-shaped head instead of a hexagonal or slotted head. Square head set screws are often used in heavy-duty applications where higher torque is required. These screws are commonly used in heavy machinery, construction, and infrastructure projects where robust fasteners are required.
Applications and Amenities
At South Coast Fasteners, we're proud our inventory serves as performance benchmarks across every industry. Have you ever noticed socket screws show up in every corner of every industry? That's because they work. In industrial machinery and equipment, they keep moving parts locked in place. In automotive and aerospace, they’re trusted for high-performance and high-pressure connections. Construction professionals use them for structural integrity, while electronics engineers utilize their low profiles and clean installs. Furniture makers, fixture builders, and even stage designers turn to socket screws when strength and aesthetics matter. Their flush fit keeps surfaces clean and their tamper-resistant options protect things that actually matter.
Material and Grades
Socket screws come in various grades, each offering specific properties and characteristics to suit different uses. When selecting the appropriate grade for your application, please consider factors such as required strength, corrosion resistance, and environmental conditions.Grade 2: Grade 2 socket screws are the basic grade and are made from low or medium carbon steel. They are not heat-treated, making them the choice for general-purpose applications where high strength is not a requirement.
Grade 5: Grade 5 socket screws are made from medium carbon steel and are tempered to achieve higher strength and hardness. They are used in automotive, industrial machinery, and equipment assembly where moderate strength is required.
Grade 8: Grade 8 socket screws are the highest grade of standard socket screws, offering exceptional strength. They are made from medium carbon alloy steel and are heat-treated. Grade 8 socket screws are most commonly used in heavy machinery, automotive, and structural applications where maximum strength is needed.
Stainless Steel: Stainless steel socket screws offer corrosion resistance, making them ideal for applications exposed to moisture, chemicals, or high temperatures. Common stainless-steel grades used for socket screws include 18-8 (Type 304) and 316 stainless steel, each offering different levels of corrosion resistance and strength.
Brass: Brass socket screws provide corrosion resistance, electrical conductivity, and are aesthically pleasing. They are commonly used in electrical, plumbing, and decorative applications where appearance and conductivity are important.
Alloy Steel: Alloy steel socket screws are made from alloy steel containing additional elements such as chromium, molybdenum, or vanadium to enhance strength, hardness, and resistance. They are commonly used in high-stress applications such as aerospace, automotive, and machinery.
Why Choose South Coast Fasteners?
At South Coast Fasteners, we specialize in the application of socket screws. That focus means better inventory, faster shipping, and a team that actually understands what you're building. Whether you need high-strength options or tamper-resistant heads, we’ve got the right socket product for the job. With decades of hands-on experience, South Coast Fasteners is here to serve you.