Anchor Bolts — J-Bolts, L-Bolts & Foundation Bolts
Anchor bolts are designed to be cast into concrete foundations to anchor structural columns, equipment bases, and steel posts. They are produced in several end configurations — J-shaped hook, L-shaped bend, headed (with nut and washer), or threaded with a plate — to provide pull-out resistance in the concrete.
Specifications
| Forms | J-bolt, L-bolt, Headed anchor bolt, Plate-end anchor bolt |
|---|---|
| Standards | ASTM F1554 (Grade 36, 55, 105), DIN 529 |
| Diameter Range | M12 – M64 (1/2" – 2-1/2") |
| Length Range | 150 mm – 1500 mm typical, longer on request |
| Surface Finish | Plain, HDG, Zinc plated |
| Supplied With | Matching nuts and plate washers if specified |
Frequently Asked Questions
What is ASTM F1554?
ASTM F1554 is the U.S. standard for anchor bolts cast into concrete. It defines three grades: Grade 36 (low-carbon, weldable, 36 ksi yield); Grade 55 (low-carbon weldable, 55 ksi yield); and Grade 105 (high-strength, quenched and tempered, 105 ksi yield). Grade 55 is the most common for general structural foundation work.
Should I use a J-bolt or a headed anchor bolt?
Headed anchor bolts (a hex head buried in the concrete) generally provide more reliable and predictable pullout strength than J-bolts, and recent code provisions favor headed anchors for critical applications. J-bolts remain widely used in lighter applications and where established practice or cost favor them.
Need a quote on Anchor Bolt (J / L / Foundation)?
Send us your specifications, target quantity, and destination port. We will respond within 24 hours with sourceable options and indicative pricing.
Get a Quote