ASTM A307 Grade A Anchor Fasteners

ASTM A307 Anchor Fasteners (commonly J-Bolts, L-Bolts, or standard bent anchors) are specialized fasteners made from low-carbon steel and designed to anchor structural elements, machinery, or equipment to concrete foundations. These fasteners fall under the A307 Grade A specification, meaning they are required to meet a minimum tensile strength of 60 ksi. The bent or headed end of the anchor is embedded into the concrete, while the threaded end is used to attach the assembly with nuts and washers. They are primarily used in applications where moderate strength is acceptable and high-strength seismic or heavy-load resistance is not mandatory, such as light poles, sign structures, or small equipment bases. Zeron Fasteners manufactures and supplies these Anchor Fasteners in various lengths, bends, and diameters, with popular finishes like hot-dip galvanizing to provide necessary corrosion resistance for foundation work.

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