We are manufacturer, supplier and exporter of ASTM A325 bolts standard in India. the ASTM A325 specification covered high strength heavy hex structural bolts from 1/2″ diameter through 1-1/2″ diameter. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts. This specification is applicable to heavy hex structural bo... https://www.bigboltnut.com/product/astm-a325-standard.html