Astm 307 //top\\ -

Galvanized A307 bolts are common, but the specification does not explicitly cover galvanizing — that is usually referenced under ASTM F2329 (for coating).

: Previously used for non-headed anchor bolts (j-bolts or l-bolts), this grade was officially replaced by the ASTM F1554 Grade 36 specification in 2007, though the term is still occasionally used in older project manuals. Technical Specifications and Material Properties astm 307