ASTM F3125M – A325M Heavy Hex Bolt
ASTM F3125M / A325M is an ASTM International standard for heavy hex structural bolts, whereas titled Standard Specification for Structural Bolts, Generally Steel, Heat Treated, 800/830 N/mm2/Mpa Minimum Tensile Strength. It defines mechanical properties for bolts that range from M10-M125.
In Brief ASTM F3125M / ASTM A325M Heavy Hex Structural Bolting Assemblies (Metric). A325M Bolt, A563M Nut & F436M Washer
ASTM F3125M / A325M
Carbon Steel, Alloy Steel, Weather Steel
Weather Steel as per customer demand
EN 10204.3.1 )
In brief Type 3 grade F3125 bolts shall be marked “A325M” to distinguish them from standard grade A325s. Likewise Grade A490 bolts are available in diameters from 1/2 to 1-1/2 inch diameters with a minimum tensile strength of 150,000 PSI for all diameters, and are offered in two types.
In Fact ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1⁄2 to 1 1⁄2 inches (13 to 38 mm) in diameter.
In accordance with ASTM A325, all threaded components of the fastener assembly must be galvanized by the same process and the supplier’s option is limited to one process per item with no mixed processes in a lot.