Grade 2/5/8 ANSI/ASME Hex Head Bolts Cap Screws Ms Ht
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Product Attributes
- Material
- High Strength Steel
- Type
- Hexagon Head
- Connection
- Common Bolt
- Model NO.
- 1/4'' - 4''
- Head Style
- Hexagonal
- Standard
- DIN, ANSI, GB, ASME
- Grade
- 2/5/8
- Application
- Machinery, Chemical Industry, Environmental, Building
- Finish
- Color-Zinc Plated
- Quality Certifications
- ISO9001, IATF16949
- Customized
- Accept
- Materials
- Carbon/Alloy/Stainless Steel
- Exterior Finish
- Zinc/Black/Decromet/HDG
- Sample Charge
- Free
- Nuts & Washers Set
- Can Be Customized
- Transport Package
- Carton + Pallet
- Specification
- 1/4'' - 4''
- Trademark
- JX
- Origin
- Hangzhou Zhejiang
- HS Code
- 7318150000
- Production Capacity
- 2000 Tons Per Quarter
- Package Size
- 26.00cm * 26.00cm * 14.00cm
- Package Gross Weight
- 20.000kg
Product Images of Grade 2/5/8 ANSI/ASME Hex Head Bolts Cap Screws Ms Ht
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Product Description

| Hex Bolt/Hex Head Bolt | |
| Standard | ANSI/ASME B18.2.1, DIN931, DIN933, DIN960, DIN961, GB5782, GB5783 or customized |
| Diameter | M2-M64, 1/4''-2'', or customized |
| Length | 6 to 250 mm, 1/4 to 10 inch, or customized |
| Material | 1.Carbon steel: C1006, C1008, C1010, C1018A, C1022, C1035K, C1045K, etc |
| 2.Stainless steel: SS301, SS302, SS303, SS304, SS316, SS410, SS416, SS420, SS430, etc | |
| 3. Alloy Steel: C15, C35, C45(K1045), S45C, C46(K1046), C20, 40Cr etc | |
| Grade | 4.8/6.8/8.8/10.9/12.9; A2-70/A4-70; US 2/5/8 |
| Thread | M/UNC/UNF |
| Finish | Plain/Black Oxide/Blue-White Zinc/Zinc Plated(Clear/Blue/Yellow/Black)/Nickel/Chrome/Dacromet/Zinc Nickel |
| Packing | Cartons (26*26*14 cm) + Pallets (113*85 cm), or customized |
| Application | Steel structure/Building/Mechanical machine/Automobile/Interior Design |
| Trade Term | FOB/CIF/CFR/EXW/CIP |
| Payment | T/T, D/A , D/P ,West union,Paypal.etc |
| Lead Time | 3~15 days after the order is confirmed, it will be based on the detailed order quantity |
| Market | Europe / North America / Southeast Asia / Middle East / Australia, etc |
| Warranty | We confirm our goods will satisfy your request of 100% |
| After Sales Service | We will follow up on the goods for every customer and help solve problems after sales |
ASME B18.2.1 Hex Bolts

| Nominal Size or Basic product Diameter (Inches) | Full-Size Body Diameter, E | Width Across Flats, F | Width Across Corners, G | Head Height, H | Radius of Fillet, R | Thread Length for Bolt Lengths, LT | ||||||||
| 6 inches & Shorter | Over 6 inches | |||||||||||||
| Max. | Min. | Basic | Max. | Min. | Max. | Min. | Basic | Max. | Min. | Max. | Min. | Nom. | Nom. | |
| 1/4" | 0.26 | 0.237 | 7/16" | 0.438 | 0.425 | 0.505 | 0.484 | 11/64" | 0.188 | 0.15 | 0.03 | 0.01 | 0.75 | 1 |
| 0.25 | ||||||||||||||
| 5/16" | 0.324 | 0.298 | 1/2" | 0.5 | 0.484 | 0.577 | 0.552 | 7/32" | 0.235 | 0.195 | 0.03 | 0.01 | 0.875 | 1.125 |
| 0.3125 | ||||||||||||||
| 3/8" | 0.388 | 0.36 | 9/16" | 0.562 | 0.544 | 0.65 | 0.62 | 1/4" | 0.268 | 0.226 | 0.03 | 0.01 | 1 | 1.25 |
| 0.375 | ||||||||||||||
| 7/16" | 0.452 | 0.421 | 5/8" | 0.625 | 0.603 | 0.722 | 0.687 | 19/64" | 0.316 | 0.272 | 0.03 | 0.01 | 1.125 | 1.375 |
| 0.4375 | ||||||||||||||
| 1/2" | 0.515 | 0.482 | 3/4" | 0.75 | 0.725 | 0.866 | 0.826 | 11/32" | 0.364 | 0.302 | 0.03 | 0.01 | 1.25 | 1.5 |
| 0.5 | ||||||||||||||
| 5/8" | 0.642 | 0.605 | 15/16" | 0.938 | 0.906 | 1.083 | 1.033 | 27/64" | 0.444 | 0.378 | 0.06 | 0.02 | 1.5 | 1.75 |
| 0.625 | ||||||||||||||
| 3/4" | 0.768 | 0.729 | 1-1/8" | 1.125 | 1.088 | 1.299 | 1.24 | 1/2" | 0.524 | 0.455 | 0.06 | 0.02 | 1.75 | 2 |
| 0.75 | ||||||||||||||
| 7/8" | 0.895 | 0.852 | 1-5/16" | 1.312 | 1.269 | 1.516 | 1.447 | 37/64" | 0.604 | 0.531 | 0.06 | 0.02 | 2 | 2.25 |
| 0.875 | ||||||||||||||
| 1" | 1.022 | 0.976 | 1-1/2" | 1.5 | 1.45 | 1.732 | 1.653 | 43/64" | 0.7 | 0.591 | 0.09 | 0.03 | 2.25 | 2.5 |
| 1 | ||||||||||||||
| 1-1/8" | 1.149 | 1.098 | 1-11/16" | 1.688 | 1.631 | 1.949 | 1.859 | 3/4" | 0.78 | 0.658 | 0.09 | 0.03 | 2.5 | 2.75 |
| 1.125 | ||||||||||||||
| 1-1/4" | 1.277 | 1.223 | 1-7/8" | 1.875 | 1.812 | 2.165 | 2.066 | 27/32" | 0.876 | 0.749 | 0.09 | 0.03 | 2.75 | 3 |
| 1.25 | ||||||||||||||
| 1-3/8" | 1.404 | 1.345 | 2-1/16" | 2.062 | 1.994 | 2.382 | 2.273 | 29/32" | 0.94 | 0.81 | 0.09 | 0.03 | 3 | 3.25 |
| 1.375 | ||||||||||||||
| 1-1/2" | 1.531 | 1.47 | 2-1/4" | 2.25 | 2.175 | 2.598 | 2.48 | 1" | 1.036 | 0.902 | 0.09 | 0.03 | 3.25 | 3.5 |
| 1.5 | ||||||||||||||
| 1-5/8" | 1.658 | 1.591 | 2-7/16" | 2.438 | 2.356 | 2.815 | 2.616 | 1-3/32" | 1.116 | 0.978 | 0.09 | 0.03 | 3.5 | 3.75 |
| 1.625 | ||||||||||||||
| 1-3/4" | 1.785 | 1.716 | 2-5/8" | 2.625 | 2.538 | 3.031 | 2.893 | 1-5/32" | 1.196 | 1.054 | 0.12 | 0.04 | 3.75 | 4 |
| 1.75 | ||||||||||||||
| 1-7/8" | 1.912 | 1.839 | 2-13/16" | 2.812 | 2.719 | 3.248 | 3.099 | 1-1/4" | 1.276 | 1.13 | 0.12 | 0.04 | 4 | 4.25 |
| 1.875 | ||||||||||||||
| 2" | 2.039 | 1.964 | 3" | 3 | 2.9 | 3.464 | 3.306 | 1-11/32" | 1.388 | 1.175 | 0.12 | 0.04 | 4.25 | 4.5 |
| 2 | ||||||||||||||
| 2 1/4" | 2.305 | 2.214 | 3-3/8" | 3.375 | 3.262 | 3.897 | 3.719 | 1-1/2" | 1.548 | 1.327 | 0.19 | 0.06 | 4.75 | 5 |
| 2.25 | ||||||||||||||
| 2 1/2" | 2.559 | 2.461 | 3-3/4" | 3.75 | 3.625 | 4.33 | 4.133 | 1-21/32" | 1.708 | 1.479 | 0.19 | 0.06 | 5.25 | 5.5 |
| 2.5 | ||||||||||||||
| 2-3/4" | 2.827 | 2.711 | 4-1/8" | 4.125 | 3.988 | 4.763 | 4.546 | 1-13/16" | 1.869 | 1.632 | 0.19 | 0.06 | 5.75 | 6 |
| 2.75 | ||||||||||||||
| 3" | 3.081 | 2.961 | 4-1/2" | 4.5 | 4.35 | 5.196 | 4.959 | 2" | 2.06 | 1.815 | 0.19 | 0.06 | 6.25 | 6.5 |
| 3 | ||||||||||||||
| 3-1/4" | 3.335 | 3.21 | 4-7/8" | 4.875 | 4.712 | 5.629 | 5.372 | 2-3/16" | 2.251 | 1.936 | 0.19 | 0.06 | 6.75 | 7 |
| 3.25 | ||||||||||||||
| 3-1/2" | 3.589 | 3.461 | 5-1/4" | 5.25 | 5.075 | 6.062 | 5.786 | 2-5/16" | 2.38 | 2.057 | 0.19 | 0.06 | 7.25 | 7.5 |
| 3.5 | ||||||||||||||
| 3-3/4" | 3.858 | 3.726 | 5-5/8" | 5.625 | 5.437 | 6.495 | 6.198 | 2-1/2" | 2.572 | 2.241 | 0.19 | 0.06 | 7.75 | 8 |
| 3.75 | ||||||||||||||
| 4" | 4.111 | 3.975 | 6" | 6 | 5.8 | 6.928 | 6.612 | 2-11/16" | 2.764 | 2.424 | 0.19 | 0.06 | 8.25 | 8.5 |
| 4 | ||||||||||||||
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About the Supplier
Company Profile
Hangzhou Jiangxin Industry Co., Ltd., established in 2004, is a national high-tech enterprise and a leading scientific and technological company in Zhejiang Province. We are a professional fastener manufacturer, integrating production, research and development, and sales. Our facility is equipped with the world's most advanced fastener production equipment and managed using an advanced ERP system.
The company is ISO9001 & IATF16949 certified and operates distribution outlets and logistics centers in East China. We specialize in the production and distribution of fasteners that meet various standards, including German (DIN), American (ANSI, ASME), International (ISO), National (GB), Japanese (JIS), and British (BSW) standards, as well as non-standard parts. Our product range includes high-strength bolts and advanced expansion bolts, made from various materials such as carbon steel, alloy steel and stainless steel (304 and 316). Our products are widely used in industries such as high-speed rail, automotive, maritime, machinery, molds, electronics, and construction, and are favored by both domestic and international clients for their excellent performance, quick installation, attractive appearance, compatibility, and stability.
Our products include:
Bolts: Hex head bolts, hex socket bolts, carriage bolts, flange bolts, and more.
Screws: Machine screws, drilling screws, set screws, 12.9 shoulder screws, hex wood screws, self-tapping screws, and more.
Nuts: Hex nuts, K-nuts/K-lock nuts, nylon insert lock nuts, stamped metal lock nuts, hex flange nuts, cap nuts, rivet nuts, and more.
Other Products: Semi-hollow rivets, step rivets, and various custom non-standard fastening solutions.
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