12-point metal lock nut

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

A 12-point metal lock صامولة is a high-strength, vibration-resistant fastener featuring a dodecagonal (12-sided) head and an all-metal locking mechanism. Designed for critical applications where reliability is paramount, this nut provides secure fastening without nylon inserts, making it suitable for extreme temperatures, heavy loads, and harsh environments.

Key Features & Benefits

1. 12-Point Head Design

• 30° tool engagement (vs. 60° for hex nuts) for easier access in tight spaces.

• Compatible with standard 12-point sockets (common in aerospace, automotive, and industrial applications).

2. All-Metal Locking Mechanism

• Prevailing torque design (deformed threads, elliptical tops, or serrated bases) prevents loosening under vibration.

• No nylon insert – Suitable for high-temperature applications (>250°F/121°C).

• Reusable – Maintains locking performance after multiple installations.

5. Standards & Compliance

• ISO 4161 (12-point thin nuts)

• DIN 938/939 (Metric 12-point lock nuts)

• MIL-N-25027 (Military/aerospace specifications)

• NASM 25027 (National Aerospace Standards)

Customization Options

• Thread size/pitch (Metric, UNC, UNF, or custom).

• Locking style (Top-curl, elliptical, or serrated flange).

• Head thickness (Standard, thin, or jam nut variants).

• Special coatings (Xylan®, Geomet®, or nickel plating).

Summary

إن 12-point metal lock nut is a heavy-duty, reusable fastener combining the tool accessibility of a 12-point head with all-metal vibration resistance. Ideal for high-stress, high-temperature, or corrosive environments where nylon inserts would fail.