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Foundation Bolts
Foundation bolts are a type of bolt rods that fixing steel structure of buildings or equipment to concrete. Foundtion bolts can be L-shaped, 9-shaped, U-shaped, welded embedded bolts, and bottom plate embedded bolts. FastenMetal is one of the best foundation bolts manufacturers In China, we manufacture various types of foundation bolts. We also produce non-standard foundation bolts according to customer drawings.
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Foundation Bolts Collection
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Stainless Steel Eye shape foundation bolts
Add to cartStainless steel eye shape foundation bolts are durable fasteners designed with an eyelet at one end for secure anchoring to concrete or other foundations. Known for their corrosion resistance, these bolts are ideal for use in harsh environments. They provide reliable support for structures and equipment, making them perfect for construction, marine, and industrial applications where long-lasting performance and stability are essential. These bolts are manufactured from different grades of stainless steel grade 304 and grade 316. For any type of special foundation bolts, please send any specifications or drawings to us using the enquiry link on this page, or call us and one of our experienced team will discuss your requirements and provide any technical information and advice required.
Material: Stainless Steel 304,316
Surface: As finished
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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Double Ends Thread Rod Foundation Bolt
Add to cartWhen used on large equipment that requires the installation of accessories, such as sight glasses, mechanical seal seats, and reducer frames,double ends thread rod foundation bolt are used. One end is screwed into the main body, and after the accessories are installed, a nut is put on the other end. Since the accessories are frequently disassembled, the threads can wear out or get damaged. Using double-ended studs makes replacement very convenient.
For foundation bolts that are unavailable as standard products, or for very specific requirements, we can manufacture custom bolts and fixings exactly to your specifications or drawings.
Material: Stainless Steel 304,stainless steel 316
Surface: As finished
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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Carbon Steel U shape foundation bolts
Add to cartU-bolts are commonly used in pipe installations as fasteners to secure pipes. They are named because of their U shape. The density, strength, color, and compressive strength of U-bolts are determined based on the environment. The materials for U-bolts include carbon steel, stainless steel, and iron, with carbon steel being the most common material. For any type of special fastener, please send any specifications or drawings to us using the enquiry link on this page, or call us and one of our experienced team will discuss your requirements and provide any technical information and advice required.
Material: Carbon Steel
Surface: As finished
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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Carbon Steel Eye Foundation Bolts
Add to cartEye foundation bolts are a type of anchor bolts characterized by a loop (eye) at one end and threads on the other end. These bolts are designed to be embedded or inserted into a foundation or base material, such as concrete, to provide a secure point for connecting or suspending objects. For foundation bolts that are unavailable as standard products, or for very specific requirements, we can manufacture custom anchor bolts and fixings exactly to your specifications or drawings.
Material: Carbon Steel
Surface: As finished
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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Stiffner Type Foundation Bolt
Add to cartStiffner Type foundation bolt is consists of a single-end threaded rod and a base plate and then weld them together.For foundation bolts that are unavailable as standard products, or for very specific requirements, we can manufacture custom foundation bolts exactly to your specifications or drawings.
Material: Carbon Steel
Surface: As finished
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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Weld Claws Foundation Bolts
Add to cartClaws foundation bolts are widely used in various large industrial equipment such as generator sets, heavy machinery, bridge bearings, tower crane foundations in high-rise buildings, and other situations that require bearing large horizontal or vertical loads.Especially in renovation projects or situations where it is difficult to meet the requirements of traditional embedded foundation bolts, anchor claw foundation bolts with their flexible installation and excellent load-bearing performance is a good choice for enginners.Besides range of products and sizes listed in our categories, we also supply manufactured special security foundation bolts including non-standard lengths and diameters.Get a quick quotation now.
Material: Carbon Steel
Surface: As finished
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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Heavy Duty Square U shape Foundation Bolt
Add to cartThe Square U Shape Foundation Bolt features a distinct design where the bolt was bent to a square-like U shape with threads on both ends. It typically was used to conncect and enhance two metal component. For example,connect beams and columns,steel frame and foundation and more. We manufacture all types foundation bolts in various size and shape. For any type of special fastener, please send any specifications or drawings to us using the enquiry link on this page, or call us and one of our experienced team will discuss your requirements and provide any technical information and advice required.
Material: Carbon Steel
Surface: As finished
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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Stainless Steel J Foundation Bolts
Add to cartStainless steel J foundation bolts are durable fasteners with a J-shaped hook on one end and threads on the other. Made from corrosion-resistant stainless steel 304,316. these bolts are embedded in concrete to provide a strong anchor for securing structural elements. They are ideal for use in construction and industrial applications where long-lasting strength and reliability are essential. Available in a number of grades, these foundation bolts have a number of different strengths that should be considered before making a final decision.
Material: Stainless Steel 304,stainless steel 316
Surface: As finished
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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J Foundation Bolts
Add to cartJ Foundation Bolts are called J bolts as one end is threaded, and the other end is bent into a hook or loop.J bolts are embedded in concrete foundations or slabs before they harden. Available in a number of grades, these foundation bolts have a number of different strengths that should be considered before making a final decision.
Material: Carbon Steel
Surface: As finished
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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Blacken Coating Eye Foundation Bolts
Add to cartBlacken coating can increase the corrosion resistance of eye foundation bolts,enhancing the stability and safety of the building and equipment.Non-standard sizes, grades and finishes are available to order as special. Bespoke components manufactured to specification and drawings can also be supplied. Minimum order quantities apply.
Material: Carbon Steel
Surface: Blacken
Size: From M12 to M100, custom size available
Standard: ASTM A307, A325, A354, F1554
Brand: Unbranded/Generic
Application: Construction,Bridge,Equipment.
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Stainless Steel L Shape Foundation Bolts
Add to cartStainless steel foundation anchor bolts with an L shape are embedded in concrete and used to hold structural steel columns, light poles, highway signs, heavy equipment.Our stainless steel foundation bolts can be supplied in various sizes to meet the ISO standards.Stainless steel foundation bolts in non-standard sizes and made to drawing special bolts are also available to order.
Material: Stainless Steel 304
Surface: As finished,Galvanized,blackening
Size: M12-M100
Standard: US Type
Application: Construction,Bridge and more
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Reliable Foundation Anchor Bolts Manufacturer - FastenMetal
Fastenmetal LTD stands as a reliable foundation anchor bolts manufacturer supplying high performance fastening solutions to projects across the USA, Europe, and global export markets. With years of engineering expertise, we specialize in producing high strength foundation bolts for steel structures, provide exceptional stability, safety, and long term durability for modern construction.
Our product range includes custom welded embed plates with anchor bolts, precision engineered to meet unique project specifications in industrial buildings, commercial complexes, energy facilities, and heavy civil engineering projects. For harsh or coastal environments, Fastenmetal manufactures stainless steel foundation bolts for corrosive environments, offering outstanding resistance to rust, chemicals, and moisture.
To meet customers’ engineering requirements, we custom produce different types foundation anchor bolts widely used in high wind zones, solar farms, steel towers, and infrastructure requiring enhanced tensile and uplift resistance. With strict quality control, customizable finishes, and advanced manufacturing capabilities, Fastenmetal provide dependable anchor bolt solutions that contractors and engineers trust worldwide.
Why FastenMetal Foundation Bolts Stand Above the Rest?
At FastenMetal, we don’t just supply bolts; we engineer certainty. While others chase false economies, we pursue absolute integrity, focusing on the foundation bolts quality that dictate safety, amplify performance, and slash true costs in the long run.
1.Accurate Diameter — No Thin Shanks, No Shortcuts
Many suppliers reduce costs by using thin-shank bolts. For example, an M24 bolt should reach a 25 mm diameter, but some factories use thin shanks such as 21.8 mm. Since bolt weight is calculated based on the square of the diameter, the difference between 25² and 21.8² results in a major weight and strength loss.
At FastenMetal,we always follow the diameter specified in your drawing.Every bolt is produced with accurate shank diameter to ensure true load-bearing capacity and guaranteed structural reliability.
2.FullLength Production — No Reduced Length, No Short Hooks
Some manufacturers quietly shorten the overall length or bendhook length to save material, such as producing a 105 cm bolt at only 102 cm or reducing the hook length below standard. Shorter bolts cannot tie properly to rebar, and insufficient hook length significantly weakens pull out resistance.
FastenMetal never cuts corners. Every foundation bolt is produced to the full specified length, with a standard-compliant hook shape and size to ensure maximum anchoring strength and safe installation on site.
3.Verified Material Quality — Genuine Q355, Never Fake Steel
Price differences often come from material quality. Some suppliers use unknown or low grade steel, and in extreme cases, even label Q235 as Q355. This leads to serious safety risks because the actual strength does not meet engineering requirements.
FastenMetal sources steel from trusted mills only, and every batch is traceable and tested to confirm mechanical properties. We guarantee the steel grade you order is the steel grade you receive.
Worldwide Projects Service Cases
FastenMetal Foundation Bolts Manufacturing
FAQs about Foundation Bolts
From our experience, most foundation bolt problems come from poor protection or drainage, not the steel itself. That’s why we recommend high quality HDG bolts from a trusted supplier, with a coating thickness of 50–55 µm.
FastenMetal's foundation bolts have been used in many projects without any issues, providing reliable performance. Stainless steel only makes sense in situations where moisture cannot be controlled.Otherwise, a well-coated HDG bolt is more than sufficient.
Yes, FastenMetal can produce M36 and larger foundation bolts specifically designed for wind resistant structures. Our anchor bolts are produced to meet stringent load and uplift requirements, ensuring maximum stability and safety for high wind zones. We offer both standard and custom sizes, with precise shank diameters and full length production to comply with structural and building code standards.
Whether for steel towers,buildings, or industrial structures, FastenMetal’s foundation bolts provide reliable anchoring performance for even the most demanding projects.
For marine and coastal environments, Austenitic stainless steel bolts, such as SUS304 or SUS316, are the best choice for foundation applications. These stainless steels offer excellent corrosion resistance against saltwater. humidity, and harsh weather, ensuring long-term durability and structural safety.
For seismic foundations, it is crucial to use high strength anchor bolts that meet the structural demands of earthquake-prone areas. Typically, Q355 grade steel or equivalent is recommended due to its superior tensile strength, ductility, and ability to withstand dynamic loads during seismic events. Lower grades, such as Q235, may not provide sufficient performance under earthquake stresses.
Length tolerance is extremely important for anchor bolts in concrete foundations. If an anchor bolt is shorter than specified, it may not properly tie to the rebar, and the hook at the end might not engage correctly, which can significantly reduce the bolt’s pull-out strength and compromise the overall structural integrity.
At FastenMetal, we ensure that every foundation bolt is produced to exact specified lengths, with hooks formed according to industry standards. This precision guarantees proper rebar connection, maximum anchoring strength, and safe installation on site. Maintaining correct length tolerance is critical for load bearing capacity, compliance with building codes, and long term safety of your foundation.
Still not finding what you’re looking for? For fasteners that are unavailable as standard products, or for very specific requirements, we can manufacture custom fasteners and fixings exactly to your specifications or drawings.
