DIN6923 Serrated Flange Nut Zinc Plated Carbon Steel

DIN6923 Serrated Flange Nut Zinc Plated Carbon Steel is a one-piece fastening component that combines a hexagonal driving body, an integrated flange washer and serrated anti-slip teeth on the flange underside. Manufactured strictly under German DIN6923 industrial specification, this fastener eliminates the need for a separate flat washer during assembly, reducing parts count and cutting installation time on production lines. The radial serrations engraved on the flange bottom bite firmly into the mating surface once tightened, creating a mechanical lock that resists rotation loosening caused by vibration, thermal cycling or dynamic load. Ningbo Gangtong Zheli Fasteners Co., Ltd supplies this fastener in regular stock sizes and also accepts custom non-standard dimensions, special thread pitches and customer-required head markings based on technical drawings.

Material & Standard Specification

DIN6923 Serrated Flange Nut Zinc Plated Carbon Steel is produced from high-grade carbon steel rod that passes full incoming inspection covering chemical composition, hardness uniformity and surface defect check before entering the cold heading workshop. Beyond the standard carbon steel version, Ningbo Gangtong Zheli Fasteners Co., Ltd also manufactures this fastener in A2-70 and A4-80 stainless steel for outdoor, coastal or chemically corrosive working environments where carbon steel cannot meet service life requirements. All production dimensions — including thread pitch diameter, flange outer diameter, nut height and serration depth — are controlled within DIN6923 tolerance bands, and every batch is verified by our in-house dimensional lab before release.

Product Performance & Application

DIN6923 Serrated Flange Nut Zinc Plated Carbon Steel delivers clear assembly advantages over a conventional hex nut plus flat washer combination. The integrated flange enlarges the contact area against the workpiece, distributing clamping force over a wider surface and reducing the risk of indentation or pull-through on thin sheet metal. The bottom serrations create a positive mechanical lock after tightening, which significantly lowers the chance of self-loosening under vibrating conditions such as running machinery, vehicle chassis or wind-exposed rooftop solar arrays. Because the washer is permanently attached to the nut body, workers cannot forget or misplace a separate washer on site, which improves assembly consistency and reduces quality defects in mass production. Ordinary hex nuts need independent flat washers during installation, and loose washers may shift under continuous vibration, which brings hidden risks for long-term stable fastening.

Typical application scenarios include solar panel mounting brackets, light steel structure framing, electrical cabinet assembly, metal profile splicing, HVAC ductwork, automotive chassis parts, agricultural machinery and outdoor furniture. Ningbo Gangtong Zheli Fasteners Co., Ltd can recommend the correct material and surface finish according to the actual working environment and load requirement of each project.

Why Choose Ningbo Gangtong Zheli Fasteners Co., Ltd

Fasteners Co., Ltd, a China-based fastener manufacturer with years of export experience serving global industrial purchasers. The factory operates automated cold heading and thread rolling production lines, paired with an independent in-house testing laboratory that covers dimensional measurement, hardness testing, tensile proof load testing and salt spray corrosion testing. Our quality team follows full-process control from raw material incoming inspection, in-process first-article check, to final batch sampling before shipment. Our factory can supply complete batch documentation including MTC material test certificate, dimensional inspection report, mechanical performance report, COA certificate of conformity and salt spray test report, all of which support third-party verification and customer factory audits.

Our technical team assists buyers in selecting the correct size, material and surface treatment based on actual plate thickness, load condition and environmental exposure, helping avoid wrong specification selection and potential construction failure. Our factory also provides pre-production samples for buyer confirmation before mass manufacturing, so purchasers can verify fitting, tightening torque and coating quality before placing bulk orders. Flexible MOQ is available for trial orders and mass bulk orders.

Packaging & Shipment

DIN6923 Serrated Flange Nut Zinc Plated Carbon Steel is packed following a standardized export packaging process designed to keep goods intact during long-distance sea or air transportation. Each batch is first sealed inside a waterproof inner plastic bag to prevent moisture ingress and surface scratching during transit, then placed into strong double-wall export cartons with clear labels showing product name, size, material, quantity, gross weight and net weight. Cartons are then stacked on export wooden or plywood pallets, fully wrapped with stretch film and secured with binding straps to prevent collapse, shifting or damage during loading, unloading and container handling.

Custom printed carton marks and shipping marks are available upon buyer request to meet warehouse identification and customs clearance requirements. Relying on the convenient logistics of Ningbo Port, our logistics team can arrange sea freight, air freight and international express delivery according to the agreed schedule, and share cargo tracking information promptly once goods depart, allowing buyers to monitor the full delivery journey until arrival.

FAQ

Q1: What materials can this DIN6923 flange nut be made of?

A1: The standard version uses carbon steel with zinc plating. A2-70 and A4-80 stainless steel versions are also available for corrosive environments. Multiple surface finishes including yellow zinc, black oxide and dacromet can be applied.

Q2: Can you produce non-standard DIN6923 serrated flange nuts?

A2: Yes. Ningbo Gangtong Zheli Fasteners Co., Ltd accepts custom non-standard dimensions, special thread pitches, modified flange sizes and customer-required markings based on technical drawings or samples.

Q3: What is the difference between a serrated flange nut and an ordinary hex nut?

A3: A serrated flange nut has an integrated flange washer and bottom anti-slip teeth, so the product provides larger bearing area and better vibration resistance without needing a separate washer. An ordinary hex nut requires an additional flat washer and has weaker anti-loosening performance.

Q4: What quality documents can you provide?

A4: Our factory can supply MTC material test certificate, COA certificate of conformity, dimensional inspection report, mechanical performance report and salt spray test report for each shipment batch.

Q5: What is the minimum order quantity?

A5: MOQ is flexible. Small trial orders and free pre-production samples are supported for new project testing, while large bulk orders enjoy stable lead time and competitive pricing.