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Hex Bolt
1/4-20*1-1/4 High Strength Hex Hexagon Allen Head Bolts Custom Manufacturer
| US$0.03 - 0.10 | 5,000 Pieces (MOQ) |
Port:
Shanghai, China
Production Capacity:
2000 Tons Per Quater
Payment Terms:
L/C, T/T, D/P, Western Union, Paypal
Hangzhou Jiangxin Industry Co., Ltd
Zhejiang, China
Last Login Date:
Oct 19, 2025
Main Products:
Bolt, Screw, Nut, Carriage Bolts, Flange Bolts, ANSI/ASME Hexagon Head Bolts, Hex Bolt, China Fastener, Fastener, Flange
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Product Description
Company Info
Basic Info.
Model NO.
1/4-20*1-1/4
Material
High Strength Steel
Type
Hexagon Head
Connection
Common Bolt
Head Style
Round
Standard
ANSI, ASME B18.2.1
Grade
8
Application
Machinery, Chemical Industry, Environmental, Building
Finish
Black/Zinc/Decromet or Customized
Management System Certificate
ISO9001, IATF16949
Customized
Accept
Sample Charge
Free
Exterior Finish
Zinc/Black/Dacromet etc
Trademark
JX
Transport Package
Cartons + Pallets
Specification
25.00cm * 15.00cm * 10.00cm
Origin
Hangzhou Zhejiang
HS Code
7318150000
Product Description
| Hex Bolt/Hex Head Bolt | |
| Standard | ANSI/ASME B18.2.1, or customized |
| Diameter | 1/4''-20, or customized |
| Length | 1-1/4'', or customized |
| Grade | 8 (40Cr) |
| 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: Unmatched Quality and Durability
| 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 | ||||||||||||||
FOR MORE PRODUCTS, PLEASE CLICK HERE
| BOLTS | SCREWS | NUTS | WASHERS |
| CARRIAGE BOLT | SHOULDER BOLT | HEX HEAD BOLT | FLANGE BOLT |
Established in 2004, Hangzhou Jiangxin Industry Co., Ltd. stands as a paragon of excellence in the fastener manufacturing industry. Nestled in the heart of Hangzhou, China, our company brings nearly two decades of expertise to the table. We take pride in our diverse portfolio that spans both imperial and metric fasteners, compliant with DIN, ANSI, ASME, ISO, JIS, and BSW standards. Beyond standard offerings, we also excel in crafting CUSTOM fasteners tailored to meet unique specifications. Our unwavering commitment to quality has earned us a global clientele, exporting to Europe, North America, and various other regions, and empowering countless suppliers and manufacturers to broaden their market horizons.
1. Bolts: Our range includes hex head bolts, hex socket bolts, carriage bolts, flange bolts, and more, designed to deliver exceptional performance in diverse applications.
2. Screws: From machine screws to self-drilling screws, set screws, 12.9 shoulder screws, hex head wood screws, and self-tapping screws, our screw collection guarantees reliability and precision.
3. Nuts: Explore our extensive variety of nuts, including hex nuts, k-nuts/k-lock nuts, nylon inserted nuts, stamped metal self-locking nuts, hex flange nuts, cap nuts, rivet nuts, and beyond.
4. Non-standard fasteners: We offer specialized solutions with our semi-hollow rivets, step rivets, and other custom fasteners to meet your specific needs.
1. Bolts: Our range includes hex head bolts, hex socket bolts, carriage bolts, flange bolts, and more, designed to deliver exceptional performance in diverse applications.
2. Screws: From machine screws to self-drilling screws, set screws, 12.9 shoulder screws, hex head wood screws, and self-tapping screws, our screw collection guarantees reliability and precision.
3. Nuts: Explore our extensive variety of nuts, including hex nuts, k-nuts/k-lock nuts, nylon inserted nuts, stamped metal self-locking nuts, hex flange nuts, cap nuts, rivet nuts, and beyond.
4. Non-standard fasteners: We offer specialized solutions with our semi-hollow rivets, step rivets, and other custom fasteners to meet your specific needs.
Contact Us Today to Receive a Competitive Quote
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