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DIN935 Hexagon Slotted Castle Nuts with Metric Coarse Thread
DIN935 Hexagon Slotted Castle Nuts with Metric Coarse Thread
Company Profile
At In-saiL, quality is not just a standard — it's our culture. We are committed to delivering reliable and high-performance fasteners that meet the needs of industries such as machinery, chemical engineering, and environmental solutions. With years of experience and a dedicated team, we have built a reputation as a trustworthy partner for global clients.
Our product range includes a wide variety of nuts and washers, available in metric, inch, DIN, and OEM specifications. The DIN935 series features hexagon slotted castle nuts, ideal for applications requiring secure fastening and resistance to loosening under vibration. Surface treatments include plain, black, polishing, color zinc, and blue-white zinc options to suit different environments and aesthetic preferences.
Manufacturing Capability
We specialize in precision machining, utilizing advanced equipment such as automatic lathes, CNC lathes, CNC machining centers, stamping machines, and cold heading machines. Our production facilities also include milling machines, grinders, EDM, and other auxiliary tools, ensuring we can handle both prototyping and large-scale manufacturing.
Our capabilities cover a wide range of materials, including aluminum alloy, brass, stainless steel, carbon steel, and custom options based on client requirements. Finishes vary from milled, tin plating, copper plating, hot-dip galvanizing, black oxide coating, anodizing, painting, powder coating, and more.
Quality assurance is at the core of our operations. We use state-of-the-art testing equipment like CMM, projector, pull tester, automatic optical inspector, salt spray test, durometer, coating analyzer, and tensile machine to ensure every product meets strict standards. Our management system follows ISO 9001:2008, and we hold certifications such as SGS, RoHS, Material Certification, and PPAP.
Production capacity includes auto-lathe turning (OD Φ0.5–20mm, tolerance ±0.01mm), CNC lathe turning (OD Φ0.5–250mm, tolerance ±0.005mm), CNC milling (800x600mm, tolerance ±0.05mm), grinding (tolerance ±0.002mm), screw heading and rolling (Metric 0.8–M6, Unified Imperial #0–1/4â€), and stamping (up to 200T).
Lead time typically ranges from 5 to 15 working days, and we welcome sample requests. Delivery options include DHL, UPS, TNT, FedEx, EMS, ocean freight, and air freight. We offer a full warranty, replacing any defective products at no cost to the customer.
With a focus on innovation, reliability, and customer satisfaction, In-saiL continues to grow as a leading manufacturer of precision fasteners and engineered components. Whether you're looking for standard parts or custom solutions, we are here to support your needs.