Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts

Name: Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts

1. Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts. Made from Grade 5 steel, these bolts are suitable for fastening most machinery and equipment. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Grade 5 steel bolts are marked with three radial lines. The material meets SAE J429 specifications for quality. Dimensions meet ASME B18.5 specifications. Length is measured from under the head.

Black-oxide steel screws are mildly corrosion-resistant in dry environments. Zinc-plated steel screws resist corrosion in wet environments. Zinc-flake-coated steel screws are 40 times as corrosion-resistant as zinc-plated screws and comparable to Magni-coated screws.

2. Medium-Strength Metric Class 8.8 Steel Square-Neck Carriage Bolts. These Class 8.8 steel bolts are suitable for fastening most machinery and equipment. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Length is measured from under the head. Zinc or zinc yellow-chromate plated steel bolts resist corrosion in wet environments.

3. Low-Strength Steel Square-Neck Carriage Bolts

About half the strength of medium-strength bolts, these Grade 2 bolts are for light-duty fastening. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. The material meets ASTM A307 or SAE J429 specifications for quality. Dimensions meet ASME B18.5 specifications. Length is measured from under the head. Zinc-plated steel bolts resist corrosion in wet environments. Hot-dipped galvanized steel bolts have a thick coating for better corrosion resistance than zinc-plated steel bolts. They meet ASTM A153 specifications for the quality of hot-dipped coatings. They’re a good choice for ACQ-treated (arsenic-free) lumber. Bolts must be used with hot-dipped galvanized steel nuts (sold separately).

4. Bronze Square-Neck Carriage Bolts. Made from bronze, these bolts provide corrosion resistance to salt water, gases, and sewage, and are nonmagnetic and electrically conductive. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Dimensions meet ASME B18.5 specifications. 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.