ASME B 18.2.1 Hex Bolt
Bystrong is China’s premier manufacturer of ASME/ANSI B18.2.1 bolts. With its efficient, high-performance production equipment, Bystrong is able to provide you with excellent and high-quality fasteners. Bystrong is your one-stop solution for all your bolt needs. Please feel free to send us your inquiries!
- Custom sizes and colors available
- Surface coatings (nickel plating, blue-white zinc, Dacromet, blackening, colored zinc)
- Material certificates provided
- Full set of certifications (including environmental management, quality management, etc.)
- GR1, 2, 5, 8
- Low minimum order quantity—starting at 100 pieces
Custom ASME B 18.2.1 Hex Bolts for Your Business
ASME B18.2.1 Hex Bolt
As a high-quality and efficient manufacturer, Bystrong consistently supports your projects by providing premium ASME B18.2.1 hex bolts.
Nickel-plated Grade 5 ASME B18.2.1 Bolt
If you’ve been looking for a supplier of GR 5 ASME B18.2.1 Bolts, you can trust Bystrong, known for its superior quality. We will execute according to your standards.
SAE J429 Bolt
When your business operations require SAE J429 bolts, Bystrong offers a wide range of sizes and colors. We strictly control product quality and are committed to your satisfaction.
Black ASME B18.2.1 Hex Bolt
ASME B18.2.1 hex head bolts feature imperial threads and a black oxide finish; they offer a black appearance and mild rust resistance, making them suitable for equipment built to North American standards and for indoor structural connections.
White Zinc ASME B18.2.1 Hex Bolt
Bystrong offers high-quality ASME standard bolts with a white zinc plating, giving them a bright silver-white finish and providing general rust protection.
GR 8 ASME B18.2.1 Hex Bolt
GR 8 grade high strength (tensile strength 1034MPa), medium carbon alloy steel quenched and tempered, with 6 scratch marks on the head, suitable for high preload structural connections in heavy machinery, automobiles and bridges.
ASME B 18.2.1-2 Hexagon head bolts-Table2
| Mon | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 5/8 | 3/4 | 7/8 | 1 | 1-1/8 | 1-1/4 | 1-3/8 | 1-1/2 | 1-5/8 | 1-3/4 | 1-7/8 | 2 | 2-1/4 | 2-1/2 | 2-3/4 | 3 | 3-1/4 | 3-1/2 | 3-3/4 | 4 |
| P | 20|28|32 | 18|24|32 | 16|24|32 | 14|20|28 | 13|20|28 | 11|18|24 | 10|16|20 | 9|14|20 | 8|12|20 | 7|12|18 | 7|12|18 | 6|12|18 | 6|12|18 | 6|12|18 | 5|8|12 | 6 | 4.5 | 4.5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| ds max | 0.26 | 0.324 | 0.388 | 0.452 | 0.515 | 0.642 | 0.768 | 0.895 | 1.022 | 1.149 | 1.277 | 1.404 | 1.531 | 1.658 | 1.785 | 1.912 | 2.039 | 2.305 | 2.559 | 2.827 | 3.081 | 3.335 | 3.589 | 3.858 | 4.111 |
| ds min | 0.237 | 0.298 | 0.36 | 0.421 | 0.482 | 0.605 | 0.729 | 0.852 | 0.976 | 1.098 | 1.223 | 1.345 | 1.47 | 1.591 | 1.716 | 1.839 | 1.964 | 2.214 | 2.461 | 2.711 | 2.961 | 3.21 | 3.461 | 3.726 | 3.975 |
| s max | 0.438 | 0.5 | 0.562 | 0.625 | 0.75 | 0.938 | 1.125 | 1.312 | 1.5 | 1.688 | 1.875 | 2.062 | 2.25 | 2.438 | 2.625 | 2.812 | 3 | 3.375 | 3.75 | 4.125 | 4.5 | 4.875 | 5.25 | 5.625 | 6 |
| s min | 0.425 | 0.484 | 0.544 | 0.603 | 0.725 | 0.906 | 1.088 | 1.269 | 1.45 | 1.631 | 1.812 | 1.994 | 2.175 | 2.356 | 2.538 | 2.719 | 2.9 | 3.262 | 3.625 | 3.988 | 4.35 | 4.712 | 5.075 | 5.437 | 5.8 |
| e max | 0.505 | 0.577 | 0.65 | 0.722 | 0.866 | 1.083 | 1.299 | 1.516 | 1.732 | 1.949 | 2.165 | 2.382 | 2.598 | 2.815 | 3.031 | 3.248 | 3.464 | 3.897 | 4.33 | 4.763 | 5.196 | 5.629 | 6.062 | 6.495 | 6.928 |
| e min | 0.484 | 0.552 | 0.62 | 0.687 | 0.826 | 1.033 | 1.24 | 1.447 | 1.653 | 1.859 | 2.066 | 2.273 | 2.48 | 2.616 | 2.893 | 3.099 | 3.306 | 3.719 | 4.133 | 4.546 | 4.959 | 5.372 | 5.786 | 6.198 | 6.612 |
| k max | 0.188 | 0.235 | 0.268 | 0.316 | 0.364 | 0.444 | 0.524 | 0.604 | 0.7 | 0.78 | 0.876 | 0.94 | 1.036 | 1.116 | 1.196 | 1.276 | 1.388 | 1.548 | 1.708 | 1.869 | 2.06 | 2.251 | 2.38 | 2.572 | 2.764 |
| k min | 0.15 | 0.195 | 0.226 | 0.272 | 0.302 | 0.378 | 0.455 | 0.531 | 0.591 | 0.658 | 0.749 | 0.81 | 0.902 | 0.978 | 1.054 | 1.13 | 1.175 | 1.327 | 1.479 | 1.632 | 1.815 | 1.936 | 2.057 | 2.241 | 2.424 |
| r max | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.06 | 0.06 | 0.06 | 0.09 | 0.09 | 0.09 | 0.09 | 0.09 | 0.09 | 0.12 | 0.12 | 0.12 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 |
| r min | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.02 | 0.02 | 0.02 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.04 | 0.04 | 0.04 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 |
- Carbon Steel
- Alloy Steel
- Inner packaging: Plastic wrap, bubble wrap, PE foam, EPE foam, PP bags, etc.;
- Outer packaging: Cartons, wooden crates, wooden pallets, etc.;
- Custom packaging: Logos or other content can be printed on the packaging;
- Port of shipment: Tianjin, Qingdao, Shanghai, Yiwu,or as per your requirements.
Bystrong: A Professional ASME B 18.2.1 Bolt Manufacturer
Bystrong is a premier Chinese bolt manufacturer. We offer a complete ASME B 18.2.1 Bolt product line to meet your product needs for building, petrochemical, mechanical, and commercial applications. We have extensive experience and strong capabilities in fastener manufacturing.
Bystrong’s manufacturing capabilities cover wire drawing, cold heading, thread rolling, heat treatment, and surface treatment. Whether you require ASME standard bolts or custom-engineered fasteners, we are committed to delivering products that meet your exact specifications and quality expectations.
Bystrong offers a wide range of bolts in various specifications, materials, and surface finishes, including corrosion-resistant bolts, black oxide bolts, high-strength bolts, carbon steel bolts, UNC bolts, UNF bolts, and alloy steel bolts. We also provide OEM and custom manufacturing services, delivering fasteners engineered to your exact specifications and application requirements.
As a quality-certified manufacturer, Bystrong maintains rigorous quality control throughout every stage of production to ensure every bolt meets the highest industry standards. If you are looking for reliable ASME standard bolts, Bystrong is your trusted manufacturing partner.
Bystrong ASME B18.2.1 Bolt
