Fastener

Applications of Fasteners

Fasteners are essential components in industrial applications, ensuring secure and durable connections in various structures and equipment. As a leading manufacturer and supplier, ARK Stainless Inc. provides premium-quality fasteners designed for high strength, corrosion resistance, and precision engineering. Our fasteners are extensively used in:

Industrial Applications:

• Oil & Gas Industry:

  High-performance fasteners for pipelines, refineries, and offshore rigs, ensuring reliable and leak-proof assembly in extreme conditions.

• Petrochemical & Refineries:

  Corrosion-resistant fasteners designed for high-pressure and high-temperature environments in chemical processing units.

• Power Plants:

  Essential for thermal, nuclear, and hydroelectric plants, providing secure fastening solutions for steam and turbine systems.

• Construction & Infrastructure:

  Heavy-duty fasteners for bridges, skyscrapers, tunnels, and industrial facilities, ensuring structural integrity and safety.

• Marine & Shipbuilding:

  Engineered for corrosion resistance in seawater applications, used in ship hulls, offshore platforms, and marine pipelines.

• Heavy Engineering:

  High-strength fasteners for machinery, automotive, and aerospace applications, designed to withstand heavy loads and vibrations.

Manufacturing Process of Fasteners

Our company specializes in manufacturing high-quality industrial fasteners using advanced technology and precision engineering. Our production process ensures strength, durability, and compliance with international standards such as ASTM, DIN, ISO, and ANSI. Below is a step-by-step breakdown of our fastener manufacturing process:

Step-by-Step Manufacturing Process:

• 1. Raw Material Selection & Cutting:

  We use premium-grade materials such as stainless steel, carbon steel, alloy steel, brass, and titanium, sourced from reliable suppliers. Using high-precision wire rod cutters and shearing machines, we cut the raw materials into desired lengths.

• 2. Cold Forging & Heading:

  The cut material is processed through cold forging or hot forging, depending on the fastener type. This step shapes the head of the fastener using high-tonnage presses to ensure precise dimensions and enhanced strength.

• 3. Thread Rolling & Forming:

  Threads are formed using thread rolling, cutting, or tapping machines, ensuring perfect threading with high precision. This process increases fatigue resistance and improves durability.

• 4. Heat Treatment:

  Fasteners undergo quenching, tempering, and stress relieving to achieve the required hardness, toughness, and mechanical properties. This step ensures high tensile strength and durability.

• 5. Surface Treatment & Coating:

  To enhance corrosion resistance, we apply zinc plating, hot-dip galvanization, black oxide coating, passivation, and PTFE coating as per customer requirements.

• 6. Quality Inspection & Testing:

  Each fastener undergoes rigorous testing, including hardness testing, torque testing, tensile strength testing, dimensional inspection, and non-destructive testing (NDT) to ensure compliance with industry standards.

• 7. Packaging & Global Dispatch:

  Fasteners are packed in poly bags, carton boxes, or wooden crates, ensuring safe transportation. Proper labeling and documentation ensure smooth delivery to global customers.

Bolts

Bolts are essential fastening components used in construction, manufacturing, and engineering applications. Designed for high tensile strength and durability, bolts come in various types, including hex bolts, carriage bolts, and anchor bolts. These fasteners are available in multiple materials and coatings to resist corrosion and enhance performance in extreme environments.

Key Features:

• 1. Available in various head types such as hex, square, and countersunk.
• 2. Manufactured with precision threading for secure fastening.
• 3. Available in stainless steel, carbon steel, and high-strength alloys.
• 4. Coated with zinc, galvanization, or PTFE for corrosion resistance.
• 5. Conforms to international standards such as ASTM, DIN, and ISO.

Bolt Dimensions & Specifications (ASTM F3125 Standard):

Nuts

Nuts are crucial components in fastening applications, used with bolts, screws, and studs to create strong and secure connections. Available in various materials and designs, nuts provide essential clamping force in industries such as construction, automotive, machinery, and piping systems.

Key Features:

• 1. Available in hex, square, wing, cap, and flange designs.
• 2. Manufactured in stainless steel, carbon steel, brass, and alloy steel.
• 3. Provides excellent torque resistance and prevents loosening under vibration.
• 4. Available with self-locking and corrosion-resistant coatings.
• 5. Used in high-pressure, high-temperature, and heavy-duty applications.

Dimensions & Specifications Table (ISO 4032 Standard):

Screws

Screws are vital fasteners used in multiple industries, providing secure and durable connections. They have external threads designed to engage with materials, ensuring firm assembly. Screws come in different head styles, drive types, and materials, making them highly versatile for industrial, construction, and DIY applications.

Key Features:

• 1. Available in multiple head types: Phillips, Slotted, Torx, Hex, and Pozi.
• 2. Manufactured from stainless steel, carbon steel, alloy steel, and brass.
• 3. Designed for high torque applications, providing superior fastening strength.
• 4. Offered in various coatings such as zinc-plated, black oxide, and hot-dip galvanized.
• 5. Used in construction, furniture, automotive, aerospace, and electronic industries.

Dimensions & Specifications Table (ISO 8676 Standard):

Washers

Washers are thin, disk-shaped components placed between the head of a bolt, screw, or nut and the surface of the connected material. They help distribute load, prevent damage, reduce vibration, and ensure a secure fit in assemblies. Washers are commonly used in construction, automotive, machinery, and piping systems.

Key Features:

• 1. Evenly distributes load and prevents surface damage.
• 2. Reduces loosening due to vibration and movement.
• 3. Available in different materials such as stainless steel, carbon steel, and nylon.
• 4. Used in various industries, including automotive, construction, and mechanical assemblies.
• 5. Different types include flat washers, spring washers, and lock washers for diverse applications.

Dimensions & Specifications Table (Standard Sizes):

Stud Bolts

Stud bolts are threaded rods used in conjunction with two nuts to fasten flanges, pipes, or other components in high-pressure applications. These bolts provide a strong, secure joint and are widely used in the oil & gas, petrochemical, and construction industries.

Key Features:

• 1. Provides high strength for flange and pipeline connections.
• 2. Available in full-threaded and double-ended configurations.
• 3. Manufactured in various materials like stainless steel, alloy steel, and carbon steel.
• 4. Used in high-temperature and high-pressure environments.
• 5. Compliant with ASTM A193, A320, and other international standards.

Dimensions & Specifications Table (ASTM A193 Standard):

Anchor Fasteners

Anchor fasteners are mechanical components used to secure objects to concrete, brick, or masonry surfaces. They provide a strong and reliable hold, making them ideal for heavy-duty construction, structural support, and industrial applications. These fasteners come in various designs such as wedge anchors, sleeve anchors, and drop-in anchors, each suited for specific load-bearing and environmental conditions.

Key Features:

• 1. Designed for high-strength fastening in concrete and masonry surfaces.
• 2. Available in different types: Wedge anchors, Sleeve anchors, Drop-in anchors, and Expansion anchors.
• 3. Corrosion-resistant materials such as stainless steel and zinc-plated steel.
• 4. Provides secure, vibration-resistant fastening for heavy loads.
• 5. Widely used in construction, infrastructure projects, and industrial machinery mounting.

Dimensions & Specifications Table: