Anchor Bolts Archives | MF Fastener Industries LLC

Anchor Bolt (Foundation Bolt Set)

Tue, 15 Apr 2025 11:03:36 +0000

This is our general anchor bolt page: straight, L, J and headed foundation bolts from M12 to M100, manufactured in our Umm Al Quwain plant and supplied loose or as complete foundation sets with nuts, plate washers, anchor plates and setting templates. Anchor bolts are one of the three product lines we make ourselves, so drawing, bar, bending, threading, heat treatment and testing are all under one roof.

Anchor Bolt (Foundation Bolt Set) explained

An anchor bolt (foundation bolt, holding-down bolt) transfers load from a steel structure or machine into its concrete foundation. Cast-in anchor bolts are set before the pour using a template; post-installed anchors are fixed later. We manufacture the cast-in type in every common configuration — straight rod with anchor plate, L-hook, J-hook, square-head and double-end — and supply them tagged per column so site installation is straightforward.

Applications

Steel-framed buildings, PEB and warehouses
Industrial equipment, pumps, compressors and generators
Tanks, silos and vessel skirts
Bridges, pipe racks and pedestals
Poles, masts and towers
Precast and modular structures

Standards, grades & finishes

Manufactured to ASTM F1554 Grade 36 / 55 / 105, ISO 898-1 class 4.6 / 8.8, BS 7419 (square-head holding-down bolts) or to your drawing. Materials S275JR, S355JR, EN8, EN19 and 42CrMo4 with mill certificates. Threads metric coarse or UNC. Finish self colour, hot-dip galvanized to ISO 1461 / ASTM F2329 or zinc plated. Test certificates to EN 10204 3.1 with every batch.

Anchor bolts, studs and plate washers are manufactured in our own ISO 9001:2015 plant in Emirates Modern Industrial Area, Umm Al Quwain, with calibrated in-house dimensional and thread inspection. Tensile, hardness and chemical testing is carried out by independent UAE-accredited laboratories, and EN 10204 3.1 certificates are issued with every batch. We supply across the GCC, MENA and Africa.

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ASTM F1554 Anchor Bolt

Sat, 20 Apr 2019 06:05:22 +0000

We manufacture ASTM F1554 anchor bolts in our own plant in Umm Al Quwain, cut from certified bar, bent, thread-rolled and heat treated to Grade 36, 55 or 105, then tested at independent UAE-accredited laboratories before dispatch. Every bolt carries the grade colour code on the unthreaded end and a heat number traceable to the mill test certificate.

ASTM F1554 Anchor Bolt explained

ASTM F1554 is the standard specification for steel anchor bolts used to fix structural steel columns, equipment bases and light poles into concrete foundations. It covers three strength grades — Grade 36 (mild steel, 36 ksi yield), Grade 55 (high-strength low-alloy, 55 ksi yield, weldable when ordered with supplement S1) and Grade 105 (quenched and tempered alloy, 105 ksi yield) — in straight, bent (L and J) and headed forms.

Applications

Column base plates in steel-framed buildings and warehouses
Pre-engineered buildings (PEB) and mezzanine structures
Pump, compressor and generator foundations
Transmission towers, lighting and traffic poles
Bridge bearings and pipe rack pedestals
Tank and vessel anchoring in oil, gas and water projects

Standards, grades & finishes

Bolts are supplied to ASTM F1554-20 with UNC or metric coarse threads to ASME B1.1 / ISO 68. Nuts are supplied to ASTM A563 (Grade A for Gr 36, Grade DH for Gr 55 and 105) with ASTM F436 hardened washers. Hot-dip galvanizing to ASTM F2329 or A153 Class C is available for all three grades; for Grade 105 we control bath time to avoid hydrogen embrittlement. Bend radius, projection, thread length and anchor plate detail are made to your drawing.

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U Bolt

Tue, 26 Mar 2019 15:18:31 +0000

We manufacture U bolts in our Umm Al Quwain plant by bending certified bar around a mandrel to your pipe diameter or centre distance, then rolling the thread on both legs. Sizes run from M6 to M64 in stainless steel, carbon steel and grade 8.8, supplied with nuts and washers.

U Bolt explained

A U bolt is a U-shaped bar threaded at both ends, used to clamp a pipe, tube or cable to a support or to anchor a base plate into concrete with two legs. Because the bend is formed around a mandrel, the inside width matches the pipe outside diameter exactly. We make round-bend U bolts for pipe, square-bend U bolts for channel and beam clamps, and long-leg foundation U bolts to drawing.

Applications

Pipe support and pipe rack clamping
Cable tray and conduit fixing
HVAC duct and chiller pipe supports
Vehicle leaf spring and chassis U bolts
Foundation anchoring with two embedded legs
Handrail, signage and mast attachments

Standards, grades & finishes

Made to ISO / DIN dimensions or to your drawing, in SS304, SS316, carbon steel 4.6 and alloy steel 8.8. Thread metric coarse or UNC to ISO 68 / ASME B1.1. Finishes: self colour, hot-dip galvanized to ISO 1461, zinc plated or polished stainless. Supplied with two nuts and washers per bolt on request.

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L Type Anchor Bolt (Heavy Series)

Tue, 26 Mar 2019 15:18:30 +0000

Our heavy-series L-type anchor bolts cover the large diameters used in industrial foundations — up to M125 — bent and threaded in our Umm Al Quwain plant. They are made to your foundation drawing in carbon or alloy steel and dimensionally inspected in-house and tested for tensile and hardness at accredited laboratories before dispatch.

L Type Anchor Bolt (Heavy Series) explained

The heavy series is the same 90°-hook anchor bolt as our standard L bolt, but produced in larger diameters and longer embedments for heavy structural steel, tank foundations and machine bases where higher pull-out capacity is required. Large-diameter bending is done hot to keep the bend radius and avoid cracking, and the thread is rolled after bending for full grain-flow strength.

Applications

Heavy structural column bases and crane runway columns
Storage tank and silo anchoring
Turbine, compressor and mill foundations
Pipe rack and pipe bridge pedestals
Conveyor, stacker and bulk-handling structures
Power plant and desalination equipment bases

Standards, grades & finishes

Manufactured to ASTM F1554 Grade 36 / 55 / 105, ISO 898-1 class 4.6 / 8.8 or DIN 529, in S355JR, EN19 or 42CrMo4 depending on grade. Threads to ISO 68 / ASME B1.1. Hot-dip galvanizing to ISO 1461 is available up to the full size range. Supplied with A563 / DIN 934 nuts and plate washers cut in-plant.

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J Anchor Bolt

Tue, 26 Mar 2019 15:18:29 +0000

J anchor bolts are hooked foundation bolts with a 180° curved end, and we manufacture them in our Umm Al Quwain plant from M12 to M100. The hook is formed on a radius die, the shank is thread-rolled and every batch is inspected in-house and independently tested before it ships with its material certificate.

J Anchor Bolt explained

A J anchor bolt (J bolt, J-type foundation bolt) has a curved hook rather than the sharp 90° bend of an L bolt. The hook locks into the concrete to resist pull-out and is often preferred where the bolt sits close to a foundation edge or where the designer wants a tighter, self-centering anchorage. J bolts are cast in place, usually held by a template, and used with two nuts and a plate washer at the base plate.

Applications

Light and medium steel column bases
Pole foundations for lighting, signage and CCTV
Equipment skids and pump bases
Timber and steel sill plate hold-downs
Fencing, gantry and cable tray supports
Prefabricated cabin and shelter foundations

Standards, grades & finishes

Manufactured to ASTM F1554 Grade 36 / 55, ISO 898-1 class 4.6 / 8.8 or to your drawing, from S275JR or S355JR bar. Threads metric coarse or UNC. Available self colour, hot-dip galvanized to ISO 1461 / ASTM F2329 or zinc plated. Hook radius, total length and projection are made to the dimensions you specify.

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L Anchor Bolt

Tue, 26 Mar 2019 06:37:27 +0000

L anchor bolts are the most common foundation bolt in the Gulf, and we make them in our own plant in Umm Al Quwain: bar is cut, the hook is formed on a bending die, the shank is thread-rolled and the finished bolt is independently tested. Sizes run from M6 to M125 and every batch ships with a material certificate.

L Anchor Bolt explained

An L anchor bolt (also called an L-type foundation bolt or bent anchor bolt) is a straight threaded rod with a 90° bend at the embedded end. The hook develops pull-out resistance in the concrete without a separate anchor plate, which makes it the economical choice for column bases, equipment plinths and fence or pole footings. The bend length and shank projection are set by the foundation designer; we form them to the drawing.

Applications

Steel column base plates and portal frames
Pre-engineered building (PEB) foundations
Machine, pump and generator plinths
Boundary fencing, gates and lighting poles
Precast and tilt-up panel connections
Substation and switchgear supports

Standards, grades & finishes

We manufacture L anchor bolts to ASTM F1554 (Grade 36 / 55 / 105), ISO 898-1 property classes 4.6 and 8.8 or to a customer specification, from S275JR, S355JR, EN8, EN19 or 42CrMo4 bar. Threads are metric coarse or UNC. Standard finishes are self colour, hot-dip galvanized to ISO 1461 / ASTM F2329 and electro zinc plated. Nuts and plate washers are supplied to match.

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