About Changzhou Hongsheng Machinery Fittings Factory - Machinery Fittings Supplier in China

Changzhou Hongsheng Machinery Fittings Factory is based in China and currently lists ten distinct products in its catalogue. The list includes Wheel Nuts, Stainless Steel Nut, Lug Nut, Car Lug Nut, Wheel Bolts, Shank Wheel Bolt, Stud Bolt, Wheel Lock Nut, Wheel Locks and Lock Nut, covering the main fastener types used in automotive wheel assemblies. Each entry represents a specific fastener configuration rather than a broad product line, allowing buyers to identify exact items such as lug nuts or lock nuts. The catalogue focuses on metric‑thread wheel fasteners that are standard in passenger‑car and light‑truck applications.

The fasteners are typically manufactured from carbon steel with zinc or hot‑dip coating, and from stainless steel grades A2 (304) or A4 (316) for corrosion‑resistant variants. Thread sizes most often range from M12 × 1.5 mm to M20 × 2.5 mm, with common torque specifications between 80 Nm and 150 Nm depending on vehicle type. These products fall under the machinery‑fittings segment and are listed without any additional accessories or ancillary components.

Product Range and Specialties of Changzhou Hongsheng Machinery Fittings Factory

The catalogue’s Wheel Nuts, Lug Nuts and Car Lug Nuts are standard wheel‑mounting fasteners that usually comply with DIN 6910 or ISO 898‑1 specifications. Stainless Steel Nuts are supplied in A2 or A4 grades and are often tested for a minimum tensile strength of 600 MPa. Wheel Bolts and Shank Wheel Bolts generally follow the same metric thread profiles and are offered with zinc plating or black oxide finishes to improve corrosion resistance. Stud Bolts are supplied as fully threaded studs and are frequently used for wheel hub attachment in high‑performance applications. Wheel Lock Nuts and Wheel Locks provide anti‑theft functionality and are commonly produced with a hexagonal body and a secondary locking mechanism such as a pin or a clip.

Industry practice for these categories includes offering multiple thread diameters (M12, M14, M16, M20), pitch classes (coarse and fine), and length options ranging from 30 mm to 80 mm. Buyers also expect documentation of hardness (typically 170 - 210 HB for carbon steel) and corrosion‑resistance testing for stainless variants. Packaging is usually in bulk poly‑bags placed on cardboard cartons, with each carton marked by size and thread specification.

Trade and Export Information - Changzhou Hongsheng Machinery Fittings Factory

China is one of the world’s largest exporters of automotive wheel fasteners, supplying Europe, North America and Southeast Asia through both sea and rail freight. The typical HS chapter for these items is 73 (iron or steel products), and customs authorities often request material test reports and conformity certificates for steel grade verification. Buyers commonly request ISO 9001 quality‑management certification and CE marking where the fasteners are destined for the European market. Standard shipping terms include FOB Shanghai or Ningbo, with container loads of 20 ft (approximately 1,200 kg) or 40 ft (approximately 2,300 kg) depending on packaging density.

For most buyers, the first step is to confirm that the fasteners meet the required metric standards (ISO 898‑1, DIN 6910) and material grades (ASTM A193 for stainless steel, ASTM A307 for carbon steel). Importers should verify that the supplier can provide a Material Test Report (MTR) and, where required, a Declaration of Conformity (DoC) for CE‑type assessments. Logistics typically involve palletized cartons on a 40 ft container, with optional moisture‑proof liners for long‑haul shipping to humid destinations.

Sourcing from Changzhou Hongsheng Machinery Fittings Factory - Buyer Guidance

When sourcing from Changzhou Hongsheng, request a sample set that covers the full range of thread sizes and material grades listed in the catalogue. Ask the supplier to attach an MTR showing tensile strength, hardness and chemical composition, and to confirm compliance with ISO 898‑1 or relevant DIN standards. Verify that the packaging matches your handling requirements - for bulk orders, confirm carton dimensions and pallet configuration to avoid damage during loading.

Before confirming a purchase order, ensure that the supplier can provide any buyer‑specific certifications, such as ISO 9001, CE marking or RoHS compliance, especially if the goods will enter the European Union. Clarify the minimum order quantity (MOQ) for each fastener type, typical lead times (often 15‑30 days for standard sizes), and the preferred Incoterm for your supply chain. Establish a clear procedure for third‑party inspection if required by your quality‑control protocol.

What thread standards do the wheel nuts and bolts follow?

The wheel nuts, lug nuts and wheel bolts are generally produced to ISO 898‑1 and DIN 6910 metric thread dimensions, covering sizes from M12 × 1.5 mm up to M20 × 2.5 mm.

Which material grades are available for the stainless steel nuts?

Stainless steel nuts are offered in grade A2 (304) and grade A4 (316), both meeting a minimum tensile strength of 600 MPa and typical hardness of 170 HB.

Are lock nuts and wheel locks supplied with anti‑theft features?

Yes, the lock nuts and wheel locks include secondary locking mechanisms such as pins or clips designed to prevent unauthorized removal, in line with common anti‑theft specifications for automotive applications.

What certifications should a buyer request from the supplier?

Buyers should request ISO 9001 quality‑management certification, material test reports, and, for European shipments, a CE Declaration of Conformity or RoHS compliance if applicable.

What are the typical packaging and shipment sizes for bulk orders?

Fasteners are usually packed in poly‑bags inside cardboard cartons, with cartons stacked on standard Euro‑pallets. A 20 ft container can hold roughly 1,200 kg, while a 40 ft container can accommodate about 2,300 kg of packed fasteners.

What is the usual lead time for standard wheel fastener orders?

Standard items without custom dimensions are typically produced and ready for shipment within 15 to 30 days after order confirmation, depending on order size and current factory load.

Can the supplier provide samples for quality verification?

Yes, sample kits covering the range of thread sizes and material grades can be arranged, and they are usually shipped under the buyer’s chosen Incoterm such as FOB or CIF.

What are the common export destinations for these fasteners from China?

Typical export markets include the European Union, the United States, Canada, Japan and Southeast Asian countries, where automotive manufacturers and aftermarket distributors source wheel fasteners.