Import Custom Hexagon Head Special Flange Bolt — Buy in wholesale FOB from Supplier in China

The Custom Hexagon Head Special Flange Bolt from Wenzhou Yuanzhi Auto Parts Co. Ltd is a precision fastener designed for high-strength applications in automotive, machinery, and construction industries. The listing specifies a range of materials, including carbon steel, alloy steel, stainless steel, and brass, with grades such as Class 8.8, 10.9, SAE J429 Gr. 5, and Gr. 8. The bolts are available in sizes from M5 to M48, as well as non-standard dimensions, and can be supplied with finishes like zinc plating, hot-dip galvanising, or black oxide to meet corrosion resistance requirements.

Flange bolts are distinguished by their integrated washer-like flange, which distributes the clamping load and prevents loosening under vibration. Typical industry standards for such bolts include DIN 6921 for metric flange bolts and ANSI B18.2.1 for imperial sizes, with thread tolerances of 6g for metric and 2A for imperial. The bolts are often heat-treated to achieve the required tensile strength, with Class 10.9 bolts typically offering a minimum tensile strength of 900 MPa and a yield strength of 720 MPa.

Primary buyers include automotive manufacturers, heavy machinery producers, and industrial equipment assemblers, where high-strength, vibration-resistant fasteners are critical. Wenzhou Yuanzhi Auto Parts Co. Ltd offers OEM and ODM services, including custom designs and decal printing, and can supply samples for testing. The bolts are packaged in bags of 100 - 1000 pieces per label, with export-standard cartons, and are shipped from Ningbo or Shanghai ports. Buyers should confirm the exact material grade, finish, and dimensional specifications to ensure compatibility with their applications.

Wenzhou Yuanzhi Auto Parts Co. Ltd is located in the Wenzhou Economic and Technological Development Zone, Zhejiang Province, China, with a registered address at No. 168 Hairong Road, Haicheng Street. The company specialises in the production of custom fasteners, including hexagon head flange bolts, and offers OEM and ODM services to meet specific buyer requirements. The supplier’s profile indicates a focus on the automotive industry, with a product range that extends to flange lock nuts and heavy hex nuts.

The listing confirms certifications such as IATF 16949, ISO 14001, and ISO 9001, which are critical for automotive and industrial suppliers. Wenzhou Yuanzhi Auto Parts Co. Ltd accepts small orders and provides samples for testing, with a production capacity sufficient to ensure timely delivery. The company’s loading ports are Ningbo or Shanghai, and payment terms include 30% deposit in advance and 70% before shipment, or 100% TT in advance. However, response metrics such as average response time are not provided, so buyers should confirm communication channels and lead times directly.