Your Professional Bolt Supplier
Haiyan Huashen Auto Parts Technology Co., Ltd. is located in Jiaxing, Zhejiang—a standard parts distribution center with convenient transportation and logistics. Our company has strong technical capabilities and specializes in producing various specifications and types of flange bolts, non-standard parts, nuts, hex bolts, double-headed bolts, barrel clamp bolts, and other related products.
Why Choose Us
Design and Customization with Innovative Technology
We have a professional design team that supports development based on customer drawings and samples. Customers can provide drawings or specific requirements, and our team will quickly respond with customized solutions to meet unique needs. Using CAE simulation analysis to evaluate the structure before forming parts helps predict the design's feasibility, shortens the development cycle, reduces trial-and-error costs, and ensures product performance and quality.
High-Quality Materials and Excellent Craftsmanship
We carefully select and process materials according to performance requirements. With exquisite craftsmanship and refined production processes, we pursue perfection in every detail to ensure customers receive high-quality products.
Strict Quality Control with Full Traceability
Our company is equipped with advanced testing equipment and enforces strict quality control at every stage of production. Multiple inspections ensure product quality before leaving the factory. We implement batch management and record incoming material numbers for traceability. This improves management efficiency and provides customers with reliable quality assurance.
Worry-Free After-Sales Service
Customer satisfaction is our top priority. We offer comprehensive after-sales services, including product consultation, technical support, and maintenance. We are committed to providing timely and professional assistance, firmly believing that customer satisfaction represents our greatest success.
Specification
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Bolt |
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Product Name: |
Hexagon/Hex Head Bolts |
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Material: |
Carbon Steel, Alloy Steel, Stainless Steel, Aluminium, etc |
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Head Type: |
Hexagon, Round, Flange, Square, Socket, T Shape, etc |
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Diameter: |
Metric Size From M5 to M76; Inch Size from 3/16" to 1" |
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Length: |
Metric sizes from 10mm to 3000mm, Inch sizes from 3/8" to 12' |
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Thread Length: |
Full Thread / Half Thread |
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Thread Type: |
UNC / UNF |
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Surface Treatment: |
Plain, Zinc Plated, Black Oxide, HDG, Dacroment, Nickel plated, etc |
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Class: |
Metric 4.8 / 5.8 / 6.8 / 8.8 / 10.9 / 12.9; Inch G2 / G5 / G8 |
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Production Process: |
M5 - M24 / 3/16'' - 1'' : Froging; M24 - M76 / 1'' - 3'': Hot Froging |
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Application: |
Building, General Industry, Machinery, Heavy Industry, Furniture, etc |
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Transport Packing: |
DIN, ASTM/ANSI, JIS, BSW, EN, AS, ISO, GB |
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Transport Packing: |
Transport Packing: |
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Production Capacity: |
500Tons/Month |
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HS Code: |
HS Code: |
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Lead time: |
Standard Products: 15-20days / Non-Standard Products: 30-40days |
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Types |
Material |
Grade |
Size |
Surface |
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(Heavy )Hex Head Bolt |
Carbon Steel, Stainless Steel 304/316, Alloy Steel ,Brass , Titanium |
ISO898-1 Grade 4.8 8.8 10.9 12.9 SAE J429 Grade 2/5/8/10; B7,B7M/B8/B8M , A2 A4 |
M1.6~M56 |
Plain, Black oxide, zinc plated, Hot dip galvanized, Dacromet, Garmet |
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Square (T) Head Bolt |
Carbon Steel, Stainless Steel 304/316, Alloy Steel |
ISO898-1 Grade 4.8 8.8 10.9 12.9SAE J429 Grade 2/5/8/10; |
M4-M56 |
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Carriage Bolt |
Carbon Steel, Stainless Steel 304/316 |
ISO898-1 Grade 4.8 8.8 10.9 12.9SAE J429 Grade 2/5/8/10; |
M5-M20 |
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Hex Flange Bolt |
Carbon Steel, Stainless Steel 304/316, Alloy Steel |
ISO898-1 Grade 4.8 8.8 10.9 12.9SAE J429 Grade 2/5/8/10; A2 A4 |
M5-M36 |
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Shoulder Bolt |
Carbon Steel, Stainless Steel 304/316, Alloy Steel |
ISO898-1 Grade 4.8 8.8 10.9 12.9SAE J429 Grade 2/5/8/10; A2 A4 |
Some of the most popular bolts include:
Rock Bolt: A strong bolt designed to help attach supports to retaining walls or tunnels.
Anchor Bolt: This bolt enables builders to embed items in concrete.
U-Bolt: Formed in the shape of a rounded or squared “U”, this bolt displays two exteriorly ribbed male projections, held within a loose metal plate. They accept two female nuts to secure the plate tightly against an item passing between the metal plate and the curved bolt. This type of bolt often helps affix a pipe within an assembly.
Carriage Bolt: This round-headed bolt contains a square proximal shaft intended to prevent it from twisting out of position during use.
Ribbed Bolt: A bolt intended to resist loosening during vibration, it possesses a fully ribbed shaft which slightly exceeds aperture diameters. It taps into place much like a rivet.
Hex Bolt: This bolt usually displays a thick hexagonal head. In large dimensions, it reportedly sometimes helps fasten components used in infrastructure projects (including highway and bridge components). Smaller hex bolts typically help secure parts within mechanical assemblies.
Eye Bolt: This bolt contains a head which forms a complete or nearly complete circle. Manufacturers can thread a rope, cord, cable, or chain through this “eye” in order to help maintain it within position inside an assembly.
Lag Bolt: A cross between a bolt and a screw, the bolt displays exterior male threading along its entire body; the distal tip ends in a tapered point like a wood screw.
Socket Screw Bolt: A bolt containing a head displaying an hexagonal depression. Assemblers can use a wrench-like tool fitting the depression to help disassemble this bolt during maintenance procedures.
Elevator Bolt: With a thick, prominent round head and a long neck in its shaft, this bolt often serves as a fastening component within conveyor belt assemblies.
Industry Standards
We meet ANSI, ASTM, DFAR, DIN, IFI, ISO, JIS, MS, NASM, NAS, RoHS, SAE standards to meet your requirements.
Finishes
We can apply finishes to the custom bolts for corrosion resistance. Our finishes include Zinc, Yellow Zinc, Anodizing, Bright Dip, Cadmium, Chrome, Galvanizing, Painting, Phosphate, Black Oxide, Powder Coating, Wax, and others available on request.
Our custom bolts are widely used across various industries, including:
Construction
Anchor Bolts For Structural Stability In Bridges, Buildings, And Tunnels.
Automotive
High-Performance Bolts For Engines, Transmissions, And Suspension Systems.
Energy
Corrosion-Resistant Bolts For Wind Turbines, Solar Panels, And Oil Rigs.
Electronics
Precision Bolts For Circuit Boards And Enclosures.
Aerospace
Lightweight And High-Strength Bolts For Aircraft Components.
Marine
Stainless Steel And Galvanized Bolts For Ships, Docks, And Offshore Platforms.
Machinery
Heavy-Duty Bolts For Industrial Equipment And Manufacturing Lines.
CUSTOM FASTENERS SPECS
We offer the highest quality fasteners with the quickest turnarounds. If we don't have it in stock we can easily make it for you. Our versatile machining facilities can provide next-day manufacturing, even on custom orders.
• Custom thread lengths available on many sizes.
• Low minimum quantity requirements, even on custom requests.
• Custom forging available in small diameter 1/4" to 5/8" in diameter and lengths up to 40".
• Full range of in-house secondary services including drilling, cross drilling, cut & chamfer, milling, grooving, milling and grinding.
We can provide the following custom bolting services:
Product size
Special material requirements
Special surface treatment and strength requirements
Other custom requirements
Bolt Size Standards & Measurements
Bolts are measured in many different types of parameters. This includes the head, length, and more, however, the bolt thread is often the hardest to measure. Standard bolt size is measured from the surface of the material to its end. For standard bolt sizes where the head usually sits above the surface, the measurement is from directly under the head to its end. Standard size bolts, along with smaller and larger bolt sizes are also typically measured by pitch threads per unit, threads per inch and behind the head to its end.
FAQ
We're well-known as one of the leading bolt manufacturers and suppliers in China. Please feel free to wholesale customized bolt made in China here from our factory. For quotation, contact us now.