Square weld nuts with serrated flange feature robust construction from carbon, alloy, stainless steel, or brass, complying with IFI-145 and DIN69232 standards to ensure reliable vibration resistance and secure fastening. Their built-in serrated flange eliminates the need for separate washers, providing enhanced grip and preventing loosening under dynamic loads across diverse applications such as structural steel, automotive, and wind energy. Available in multiple thread sizes and finishes, these square weld nuts combine durability and versatility, supported by rigorous quality testing to meet demanding industrial requirements.
Our company specializes in manufacturing high-quality fastening solutions, including Square Weld Nuts with Serrated Flange – designed for superior vibration resistance and enhanced durability. With integrated washers built-in, our products ensure secure, reliable assembly in demanding industrial applications. Committed to innovation and precision engineering, we prioritize quality control and customer satisfaction. Leveraging advanced technology and stringent manufacturing standards, we deliver products that maximize performance and longevity. Our expertise in fastening components makes us a trusted partner for businesses seeking robust, efficient solutions that improve operational reliability and reduce maintenance costs. We strive to exceed industry expectations through continuous improvement and dedicated service.
Our company specializes in manufacturing high-quality fastening solutions, including Square Weld Nuts with Serrated Flange designed for superior vibration resistance and built-in washer functionality. With a commitment to precision engineering and durable materials, we deliver products that ensure reliable, long-lasting performance in demanding industrial applications. Our advanced production processes and stringent quality control uphold the highest standards, supporting clients across various sectors. Dedicated to innovation and customer satisfaction, we provide tailored solutions that enhance assembly efficiency and structural integrity, making us a trusted partner for businesses seeking dependable fastening components worldwide.
1. Standard: IFI-145; DIN6923
2. Size: #6-3/4''; M5-M20
3. Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass
4. Grade: SAE J995 Gr.2, 5,8; CL4, 5, 6, 8, 10, 12
5. Thread: M, UNC, UNF
6. Finish: Plain,ZincPlated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G.
7. Packing: bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
8. Application: Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating
9. Test Equipments: Caliper,Go&No-go gauge,Tensile test machine,Hardness tester,Salt spraying tester, H.D.G. thickness tester, 3D detector,Projector,Magnetic flaw detecter
10. Supply Ability: 1000 tons per month
11. MinimumOrde: 1000kgs for each specification
12. Trade Term: FOB/CIF/CFR/CNF/EXW/DDU/DDP
13. Payment Term: T/T, L/C , D/A , D/P, etc
14. Market: South&north Amrica/Europe/East&South east Asia/ Australia and ect.












Third-party inspection report on the grade 10 flange nuts produced by JM Hardware®




