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. The equivalent metric standard is ASTM A325M, which is [...]
ASTM A325 Specifications Prior to its withdrawl in 2016, the ASTM A325 specifications 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. Refer to the Structural Bolts page of our site for [...]
Hex Nuts Products Medium-Strength Steel Hex Nuts—Grade 5 These nuts are suitable for fastening most machinery and equipment. Metric Medium-Strength Steel Hex Nuts—Class 8 Class 8 nuts are comparable in strength to Class 8.8 bolts and are suitable for fastening most machinery and equipment. Metric Fine-Thread Medium-Strength Steel Hex Nuts—Class 8 Left-Hand Threaded Medium-Strength Steel [...]