Threadline: Your Trusted Partner in Anchor Bolt and Structural Hardware Solutions

At Threadline, we pride ourselves on being a domestic fabricator that provides a comprehensive range of structural threaded rods and complementary products. Our expert team is dedicated to supporting partners in construction and fabrication with high-quality products and exceptional service.

Our extensive inventory empowers customers to achieve their specific project goals, supported by our promise of fast and efficient deliveries. Whether it’s flexible, customizable products or off-the-shelf items, Threadline ensures you have the tools and expertise needed to succeed. Plus, we offer material test reports when required, giving you confidence in your materials for specialized jobs.

Let’s explore some of the key items we provide to meet the needs of the anchor bolt industry. 

Anchor Bolt Sleeves

Wilson Anchor Sleeves and Contec Anchor Sleeves are high-impact plastic components designed as in-place forms to create a free area for anchor bolt adjustment during equipment installation. These sleeves ensure proper alignment by allowing bolts to be adjusted after initial setting.

When the equipment is placed, expansion or non-shrinking grout is poured into the sleeve around the bolt, securing it in position. This cost-effective solution simplifies and accelerates the final placement of equipment and structural steel.

Anchor sleeves are widely used across industries, including power plants, paper mills, and manufacturing facilities, making them a versatile and indispensable tool for large-scale projects.

Washers 

Washers are crucial components in anchor bolt systems, providing a smooth bearing surface to distribute load and ensure secure fastening under the head of a bolt and/or a nut. Threadline offers a comprehensive selection of washer types to meet the diverse needs of the anchor bolt industry:

1. Flat Washers (ASTM F844): Unhardened washers intended for general use, providing a smooth bearing surface under bolts and nuts for less demanding applications. Slightly larger than F436 washers, they are suitable for general industrial and construction needs. Available finishes include plain, zinc, HDG, and stainless steel
2. Structural Flat Washers (F436): These hardened washers meet ASTM F436 specifications, providing a smooth bearing surface for structural applications
3. DTI Load Indicator Washers: Built-in gauges measure correct compression. Raised nibs or wax indicators ensure proper tension during installation. Compliant with ASTM 959
4. Hillside Washers: Designed for diagonal tie rods, their sloped shape allows fastening at various angles for quick and effective load distribution
5. Lock Washers (Split Washers): Semi-coiled to create tension, these washers prevent nuts from loosening, ensuring secure fastening
6. Plate Washers: Customizable in shape, material, thickness, and size, these washers are designed to meet specific anchor bolt requirements with a variety of finishes. A36/A572-GR50

With a wide range of options tailored for general and specialized use, Threadline’s washers are manufactured to meet your project’s unique requirements with precision and reliability.

Sag/Tie Rod Hardware

We stock all types and sizes of Clevis Pins, Clevises, Coupling Nuts, and Turnbuckles in several different material options. The Clevises, which connect sag or tie rods and hanger assemblies to structural steel or fabricated lugs, come in various sizes. Their material options are: 

1. C1035 steel
2. ASTM A668 Class A
3. 316 stainless steel
4. ASTM A473 Designation A

Deformed Bars (A1064 DBAs)

A1064 Deformed Bar Anchors (DBAs) are essential components in concrete connections, offering robust solutions for structural reinforcement. These bars are used in applications such as:

1. Precast columns
2. Tee and beam connections
3. Seismic shear walls
4. Securing steel plates to concrete structures

Crafted from low-carbon steel that meets ASTM A1064 standards, DBAs are specifically designed to enhance the holding power of concrete and optimize material strength in high-load scenarios.

Key Features of A1064 DBAs

1. Weld and Bearing Plate Applications
2. Ideal for securing steel plates to concrete, DBAs excel in high-stress environments
3. Length Adjustments Post-Welding
4. For stud diameters 1/2 inch and below, the length will shorten by approximately 1/8 inch after welding
5. For stud diameters 5/8 inch and above, the length will shorten by approximately 3/16 inch after welding

With their proven reliability and adherence to industry standards, A1064 DBAs are indispensable for projects requiring concrete-to-steel connections with substantial load-bearing requirements.

Weld Studs and Shear Connectors

Shear studs are vital components in composite structures, serving as metal connectors that transfer shear forces between concrete and steel to enhance the strength and stiffness of the combined materials. Here’s how they work and their applications. 

How Shear Studs Work

1. Installation: Shear studs are welded to the top of a steel beam, typically through a metal deck
2. Concrete Application: Concrete is poured onto the steel beam, surrounding the shear studs. Once hardened, the concrete adheres to the studs
3. Force Transfer: Under pressure, the shear studs transfer force between the steel beam and the concrete slab, ensuring a strong composite bond through friction

Applications

Shear studs are used in a wide range of construction projects, including:

1. Bridges: Connecting steel girders to concrete decks for added stability
2. Commercial Buildings: Bonding steel beams and concrete slabs in composite floor systems
3. Industrial Platforms and Mezzanines: Creating strong, integrated floor systems for heavy-duty applications

Factors Influencing Shear Load Capacity

The load-bearing capacity of shear studs is determined by several factors, including:

1. Stud length
2. Shank diameter
3. Stud strength
4. Concrete grade
5. Reinforcement detailing

Threadline’s Weld Studs and Shear Connectors are manufactured to adhere to ASTM A108 and A496 standards, ensuring reliability and durability. They are available in various finishes, including:

1. Plain
2. Zinc
3. HDG
4. SS

Our weld studs are designed for easy installation using high-speed welding arc guns, making them an efficient solution for securing concrete-to-steel connections in demanding environments.

Learn More About How We Can Help 

Whatever your need, we can help you find the right hardware for your project. Don’t hesitate to contact our expert team today to learn more about our wide selection of hardware offerings.