High-strength stainless steel bolts and nuts (A2-90/A2-100) at an unbeatable price! A remarkable stainless steel fastener!
The next-generation stainless steel "SUS 304CUN," developed by Daido Steel, adheres to the chemical composition of JIS B 1054 A2 (304 series) while enabling cold forging. This material has been adjusted in composition to improve aspects related to increased strength. By adding CU (copper) and N (nitrogen), we have achieved an increase in strength while ensuring non-magnetic properties! *For more details, please contact us or download the PDF.
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basic information
【Features】 1. By adding Cu (copper) and N (nitrogen), we achieve increased strength while ensuring non-magnetism. Adding Cu (copper) secures workability comparable to SUS XM7. Adding N (nitrogen) suppresses the generation of processing-induced martensitic transformation. 2. In terms of stress corrosion cracking, it has performance equivalent to SUS 316. 【SUS304CUN】 A2-90/A2-100 Hex Bolts A2-100 Hex Socket Bolts A2-100 Hex Nuts A2-90 Stud Bolts 【SUS304N2】 HV300 Flat Washers High Strength: High-strength bolts that satisfy A2-90 and A2-100. (A2-100 is age-hardened) Corrosion Resistance: Equivalent to SUS 316 in terms of material stress corrosion cracking. Heat Resistance: No carbon precipitation occurs at 500-700°C. Non-Magnetic: Permeability (μ) is 1.01 to 1.03. Availability: Procured and produced domestically! Mass production and supply are also possible! Cost: High cost-performance ratio (specification comparison). *For details, please contact us or download the PDF.
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※We have a large stock available. Please feel free to contact us.
Applications/Examples of results
【Marine-related】 Existing Product: SUS410 Bolt (hardened product, over 900N) Incident: An accident occurred due to the aging cracking (delayed fracture) phenomenon of SUS410. User Request: A bolt that does not experience aging cracking while maintaining strength. Adoption Record: 7 years (no reports of similar incidents) 【Fitting-related】 Existing Product: SCM435CS (equivalent to 10.9) Incident: The fastening bolt of the piping fitting broke due to long-term degradation. A potential difference corrosion phenomenon occurred due to the body being made of SUS material. User Request: The bolt's strength cannot be reduced in design, but SUS material is desired to prevent potential difference corrosion. Adoption Record: 4 years (no reports of similar incidents) *For details, please contact us or download the PDF.
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Company information
Yura Sangyo's Special Sales Department aims to contribute to the screw demand industry by ensuring that we can deliver "better screws" at "more reasonable prices" and "just in time" through our wholesale operations of screws and related products. We strive to perfect our various business activities to achieve this goal. 1. Abundant inventory: Over 50,000 items with more than 10,000 tons of stock. 2. Wide range of suppliers: Partnering with 250 domestic and international suppliers, including SPS Unbrako, which specializes in the aerospace sector. 3. Robust immediate delivery system: Quickly responding to customer needs from small lot orders. 4. Reliable quality control: Conducting thorough inspections and traceability from product arrival to delivery in a separate department from the wholesale division, we also handle engineering fasteners (bolts and nuts) based on customer advice and needs. Our product lineup and business details are as follows. We primarily focus on made-to-order production and also handle some branded products from the wholesale division.