Carbon steel ANSI/ASME B 18.21-2012 Hexagon head screw

Name: Mil. Spec. High-Strength Steel Hex Head Screws

1. Mil. Spec. High-Strength Steel Hex Head Screwsv.Choose these screws for their adherence to strict military standards for material and construction. Made from Grade 8 steel, they can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. The zinc yellow-chromate plating resists corrosion in wet environments. The material meets ASTM A354BD and SAE J429 specifications for quality. Dimensions meet ASME B18.2.1 specifications. Grade 8 steel hex head screws are marked with six radial lines. Length is measured from under the head.

2. Left-Hand Threaded High-Strength Steel Hex Head Screws. Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening. Made from Grade 8 steel, they are at least 25% stronger than medium-strength steel screws. The zinc yellow-chromate plating resists corrosion in wet environments. The material meets SAE J429 specifications for quality. Grade 8 steel hex head screws are marked with six radial lines. Length is measured from under the head.

3. High-Strength Steel Hex Head Screws with Material Certification. These screws come with a traceable lot number and a physical and chemical test report. Made from Grade 8 steel, they can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. The zinc yellow-chromate plating resists corrosion in wet environments. The material meets SAE J429 specifications for quality. Dimensions meet ASME B18.2.1 specifications. Grade 8 steel hex head screws are marked with six radial lines. Length is measured from under the head.

Size Can also be According to the Customer's requirement for manufacturing, please check the detailed specification sheet details PDF, CAD, 197-198 Page See more product details.

Packaging: The inner packaging is a plastic bag, and the outer packaging is a carton. Then the tray. Carton size: 29*19*19.5cm and 23.5*17.5*8 cm and pallet size: 215*100*90 cm, or as your request.