Aluminum nuts black oxide

The fastening and opening of bolts and nuts adopts non-standard design, and the matching
non-standard tools are used to solve the opening and fastening problems. In general, other
wrenches cannot be inserted. In the appearance design of nuts and bolts, non-standard slotting,
opening or pentagonal, heptagonal, nine-corner or custom-made corresponding groove tools
have played a very good anti-theft effect

عملية الرأس على البارد هي واحدة من العمليات الجديدة للتشغيل الآلي بالضغط ذات القطع الأقل أو بدون قطع
المعدن. وهي طريقة معالجة تستخدم التشوه البلاستيكي للمعدن تحت تأثير
قوى خارجية، وبمساعدة القوالب، تقوم بإعادة توزيع ونقل حجم المعدن لتشكيل
الأجزاء أو الفراغات المطلوبة. عملية الخراطة على البارد هي الأكثر ملاءمة لإنتاج الأجزاء القياسية
أدوات التثبيت مثل البراغي والبراغي والصواميل والمسامير والمسامير والدبابيس وغيرها

Aluminum Nut with Black Oxide Coating – Detailed Description

An Aluminum nuts black oxide finish is a lightweight, corrosion-resistant fastener designed for applications where weight savings, aesthetics, and moderate environmental protection are important. The black oxide coating provides a dark, matte surface that reduces glare and enhances appearance while offering some functional benefits.

1. Material Composition

• Base Metal: Aluminum alloy (common grades include 6061-T6, 7075-T6, or 2024-T3).

• Coating: Black oxide (a chemical conversion coating) formed by reacting aluminum with an oxidizing solution to create a thin, dark layer (Fe₃O₄ in steel, but aluminum black oxide is less common and may involve alternative processes).

2. Key Characteristics

✔ Lightweight – Significantly lighter than steel, ideal for weight-sensitive applications.
✔ Moderate Corrosion Resistance – Better than bare aluminum but less than anodized or plated nuts.

5. Common Applications

• Automotive & Racing (engine components, body panels).

• Electronics & Optics (non-reflective, conductive fasteners).

Conclusion

A Aluminum nuts black oxide is an excellent choice for lightweight, non-reflective, and moderately corrosion-resistant fastening needs. It’s widely used in aerospace, automotive, and electronics but may not be suitable for harsh environments without additional protection.