Suzhou Sudelan Railway Parts Co., Ltd.
| Diameter | 20-30mm |
| Supply Ability | 30000 Pics per Day |
| Weight per piece | 0.43 kg |
| Packaging Details | Woven bags and Wooden Pallets/Cases |
| Length | 100-300 mm |
| Finish | Zinc / Hot Dip Galvanized |
| Thread type | Partial Thread |
| Delivery Time | 30-50 Days |
| Payment Terms | L/C,D/A,D/P,T/T |
| Head type | Square Head |
| Certification | ISO9001 |
| Place of Origin | China |
| Brand Name | Sudelan |
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Product Specification
| Diameter | 20-30mm | Supply Ability | 30000 Pics per Day |
| Weight per piece | 0.43 kg | Packaging Details | Woven bags and Wooden Pallets/Cases |
| Length | 100-300 mm | Finish | Zinc / Hot Dip Galvanized |
| Thread type | Partial Thread | Delivery Time | 30-50 Days |
| Payment Terms | L/C,D/A,D/P,T/T | Head type | Square Head |
| Certification | ISO9001 | Place of Origin | China |
| Brand Name | Sudelan | ||
| High Light | Round head railway bolt ，Industrial Round Head Bolt ，Rail Parts Round Head Bolt | ||
Our round head bolt is a widely used fastening component featuring a smooth, semicircular mushroom head for safe and aesthetic installation. It is widely applied in railway systems, construction, steel structures, machinery and equipment where a flat, non-protruding surface is required.
Manufactured from high-quality carbon steel with strict heat treatment, our round head bolts provide excellent tensile strength, shear resistance and stability under long-term load and vibration. The hot dip galvanized surface ensures outstanding anti-corrosion and anti-rust performance, extending service life in outdoor, humid and harsh working environments.
We produce round head bolts in various standard sizes and also support customized diameters, lengths, thread types and surface treatments to meet different project requirements and international standards such as GB, DIN, BS, AREMA and others. With precise thread processing and stable quality, our bolts are widely trusted by global customers in railway construction, infrastructure and industrial assembly.
We are an experienced manufacturer of bolts and railway fasteners with complete production lines including forging, threading, heat treatment and hot dip galvanizing, ensuring stable quality and large supply capacity.
Each round head bolt undergoes full inspection from raw material to finished product, including chemical composition analysis, mechanical property test, hardness test and coating thickness test.
We provide customized size, length, thread, material and surface treatment according to your drawings, samples or project standards.
Direct factory supply without middlemen, offering cost-effective prices to help you reduce procurement cost.
Professional export packaging, flexible logistics and complete customs documents to ensure smooth delivery to your destination port.
| Item | Specification |
|---|---|
| Product Name | Round Head Bolt / Half Round Head Bolt / Mushroom Head Bolt |
| Material | Q235, 45# Carbon Steel |
| Surface Treatment | Hot Dip Galvanized (HDG), Electro-galvanized, Black Oxide |
| Standard | GB, DIN, BS, AREMA, Custom |
| Head Style | Round Head / Half Round Head / Mushroom Head |
| Thread Type | Metric Thread, Imperial Thread as required |
| Size | M6-M24, customizable length & diameter |
| Strength Grade | 4.6, 5.6, 5.8, 6.8, 8.8 |
| Application | Railway, construction, machinery, steel structure |
| Packaging | Cartons, Bags, Pallets |
| MOQ | Negotiable for trial orders |
| Lead Time | 15-30 days based on quantity |
It is used for general fastening where a smooth, flat, non-sharp head is needed, widely used in railway, construction, machinery and steel structures.
We mainly use high-quality carbon steel Q235 and 45# for high strength and durability.
Yes, hot dip galvanizing is our standard surface treatment for excellent anti-corrosion performance.
Yes, we accept customized diameter, length, thread and material according to your drawings.
We can produce according to GB, DIN, BS, AREMA and other international standards.
MOQ is flexible. Normal production time is 15-30 days.
Yes, free samples are available for quality testing; you only need to bear shipping cost.
Yes, we provide commercial invoice, packing list, certificate of quality and other customs documents.
If you are looking for a reliable supplier of round head bolts for railway or industrial projects, please send us your required size, standard, quantity and destination port. We will provide a detailed quotation and delivery plan within 24 hours.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2011
Total Annual:
50000000-100000000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
Suzhou Sudelan Railway Parts Co., Ltd. is a professional manufacturer specializing in railway fastening system components. With a strong focus on quality, reliability, and technical expertise, the company is committed to providing high-performance products for railway infrastructure projects worldwi... Suzhou Sudelan Railway Parts Co., Ltd. is a professional manufacturer specializing in railway fastening system components. With a strong focus on quality, reliability, and technical expertise, the company is committed to providing high-performance products for railway infrastructure projects worldwi...
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