7 Tiger Metal Works is a specialized metal fabricator focused on producing high-quality anchor bolts. Our products undergo rigorous quality standard testing to ensure their reliability and durability, making them ideal for use in constructing roads, houses, bridges, and buildings. Trusted by firms involved in large and medium-scale construction projects both within and beyond Metro Manila, Philippines, we are committed to meeting and exceeding the demands of the construction industry.

At 7Tiger Metal Works, the foundation of our manufacturing process begins with sourcing the highest quality round bar shafting. Through five decades of industry experience, we’ve meticulously vetted and selected trusted suppliers, ensuring only the finest raw materials are used. This commitment to quality from the very start guarantees that our products consistently meet rigorous standards and exceed our clients’ expectations.

Check out our Material Mill Certificate & Test Result

Our method of threading our bolts is by using cut threading, which involves machining the threads directly onto the bolt shaft. This process removes material to form the thread profile and is ideal for high-strength bolts, as it allows for precise control over thread dimensions and provides a clean, sharp thread. Cut threading is particularly beneficial for larger-diameter bolts, like our ASTM F1554 and A325 structural bolts, ensuring consistent fit, reliable engagement, and optimal performance in demanding structural applications. This method also maintains the integrity of the bolt material, crucial for load-bearing connections.

It’s important to note that cut threading is accepted by both ASTM A325 (under ASTM F3125) and ASTM F1554 standards. While both standards permit cut and rolled threads, cut threading is often chosen for custom or larger bolts, where precise threading is essential to meeting mechanical requirements and performance expectations in structural applications.

Our bending method varies by bolt size to meet ASTM standards and ensure material integrity. For bolts sized 12mm to 32mm, we use cold bending, which bends the bolts at room temperature without heat, preserving their mechanical properties and maintaining the material’s original strength. This method is ideal for high-strength applications, as it prevents any alteration in the bolt’s microstructure.

For bolts 35mm and above, we apply a heat-assisted bend method. Heat is applied to allow for smoother bending, minimizing stress and preventing cracking in larger-diameter bolts that require greater flexibility. This ensures that even our larger bolts retain the durability and integrity essential for load-bearing connections, meeting ASTM requirements for structural performance and reliability.

We also offer a range of custom project services tailored to meet specific requirements. Our special bolt options include left- or right-threaded varieties such as hexagonal bolts, construction bolts, slotted bolts, headed bolts, sag rods, hub bolts, and carriage bolts. For structural applications, we provide anchor bolts, J-shaped anchor bolts (with both round and square bends), headless bolts, U-bolts (square and round), eye bolts, and fully threaded studs. Our precision bushings are available in options like Tiger bronze bushings and sleeve bushings.

In addition, we produce various gear types, including spur gears, sprockets, bevel gears, compound gears, hub gears, and planetary gears. For nuts, we supply hex nuts, heavy jam nuts, heavy hex nuts, flange nuts, hex coupling nuts, round coupling nuts, and castle nuts. Our ceiling accessories include long span roofing, double furring, carrying channels, and W-clips, suited for a range of building requirements.

We also fabricate mild steel plates in various sizes, including base plates, stiffeners, and signage platforms, and offer special fabrications like hub caps, brake drums, piston caps, welding, and machining services. These tailored solutions reflect our commitment to providing versatile, high-quality products for unique structural and fabrication needs.