Three-Claw Foundation Anchor Bolts
Three-claw foundation anchor bolts end in three splayed legs welded to the shank. The claws spread the load into a wide cone of concrete and also stop the bolt turning while the nut is tightened — an important advantage on tall, single-bolt columns and street lighting columns where there is no second bolt to resist rotation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Standard | GB / DIN / ASTM (made to drawing) |
| Type | Three-claw (3-leg splayed) cast-in anchor bolt |
| Size Range | M16 – M36 |
| Material | Carbon Steel Q235B / 35# / 45# |
| Surface Finish | Black Oxide, Hot Dip Galvanized, Zinc Plated, Plain |
| Claw Length | 100mm – 250mm (to drawing) |
| Supplied With | Hex nuts, washers, template plate (on request) |
| Customisation | Made to customer drawing, any claw size and length |
| MOQ | 500 pcs (standard), 2,000 pcs (custom) |
| Lead Time | 7-15 days (standard), 20-30 days (custom) |
| Packaging | Bulk cartons / Wooden pallets / Custom labeling |
Available Sizes
M16, M20, M24, M30, M36 with total lengths 400mm – 1500mm
Applications
- Street lighting and lamp post foundations
- Signage and gantry columns
- Silo and tank base anchoring
- Solar tracker and mounting posts
- Guardrail and barrier foundations
- Heavy equipment base plates
Certifications
ISO 9001:2015 certified. Material certificates (EN 10204 3.1/3.2). RoHS and REACH compliant.
Frequently Asked Questions
Why choose a three-claw anchor bolt design?
The three radiating claws lock the bolt into the concrete in all directions, giving high resistance to pull-out and rotation. It is a cast-in design for pole bases, towers and heavy equipment foundations.
What sizes are available?
Available sizes range from M16 – M36. Contact us with your required sizes and quantities for a quick quote.
What is the MOQ and lead time?
The MOQ is 500 pcs (standard), 2,000 pcs (custom). Lead time is 7-15 days (standard), 20-30 days (custom). Mixed-size containers and larger orders are negotiable — send us your requirement for a quick quote.
Do you provide material certificates?
Yes. Material test certificates per EN 10204 3.1 are available on request, and our manufacturing is ISO 9001:2015 certified. RoHS and REACH compliance documentation can also be provided.
