Heavy hex nuts are available in a number of grades and specifications including: ASTM, SAE, and AASHTO.
ASTM F1554 - Portland Bolt, PDF, Screw
Hex Nut Bolt In Portland, Best Hex Nut Bolt Suppliers Portland
ASTM F1554 - Portland Bolt
Hot Sale ASTM A193 B7 Stud Bolt with A194 2h Heavy Hex Nut - China Stainless Steel Nut, Round Head Nut
Heavy Hex Nuts, ASTM A194/A194M and ASME SA194/SA194M, 2HM, Plain, PDF
Cable Holder Family: MAFI 32655, PDF, Manufactured Goods
Configurations - ASTM A354
ASTM A563 - Portland Bolt
Dimension of Flywheels For Punch and Shears (Cast Iron Flywheel), PDF, Microsoft Excel
Rods - Light Pole Anchor Bolts
Top 20 Fastener Manufacturers and Brands in the USA - Powertelcom
Bolt Imperial Size Chart, PDF, Nut (Hardware)
Fig90 Riserclamp, PDF, Pipe (Fluid Conveyance)
A325 Structural Bolts
Manufacturing - ASTM A193