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

冷間圧造加工は、切削の少ない、あるいは切削を必要としない新しい圧造加工のひとつである。
金属。の作用による金属の塑性変形を利用した加工法である。
外力を受け、金型の助けを借りて、金属の体積を再分配し、移動させる。
必要な部品やブランクを製造します。冷間圧造工程は、標準的な
ボルト、ネジ、ナット、リベット、ピンなどの留め具。

A 12-point metal lock 木の実 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

The 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.