Overview
ISO 4017 is a dimensional standard for metric hexagon head screws with full threading used in industrial, mechanical, and commercial fastening applications. It defines key dimensional characteristics such as thread diameter, nominal length, head dimensions, and product grade requirements to support fastening compatibility. The standard is commonly referenced together with material, mechanical property, coating, thread tolerance, and inspection standards depending on the application requirements. ISO 4017 screws are commonly available in carbon steel, stainless steel, alloy steel, and corrosion-resistant coated finishes. When sourcing ISO 4017 screws, the standard alone may not fully define the product requirements. Additional specifications may include material grade, property class, coating system, thread tolerance class, and certification requirements.