The installation and use of hexagon head bolts are directly related to the quality and service life of fasteners, and the safety of bolts is the primary consideration. The main factors affecting the hexagon head bolt: the selection of material, thickness of steel plate, processing and cutting, surface coating and installation of steel structure shall [...]
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 [...]