Self-locking 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。

Self-locking lock nuts are specialized fasteners designed to resist loosening under vibration, torque, and dynamic loads without requiring additional components like washers or adhesives. They feature built-in locking mechanisms that create friction or mechanical interference to stay securely fastened.

Types of Self-Locking Lock Nuts

1. Nylon Insert Lock Nuts (Nyloc)

   • Contains a nylon ring that deforms against the bolt threads, creating friction.

   • Reusable to a limited extent (nylon may wear out after repeated use).

2. All-Metal Lock Nuts

   • Made entirely of metal with deformed threads or crimped sections.

   • Resistant to high temperatures (unlike nylon inserts).

   • Used in aerospace, heavy machinery, and high-heat environments.

3. Prevailing Torque Lock Nuts

   • Features a slightly distorted thread that increases resistance when tightened.

   • Maintains locking ability even after multiple installations.

   • Common in industrial and structural applications.

Selection Considerations

• 素材： Choose steel, stainless steel, or brass based on corrosion needs.

• Temperature Range: Nylon inserts fail at high temps (~250°F/121°C max).

• Reusability: Nyloc nuts wear out; all-metal nuts last longer.

• Torque Requirements: Some nuts require higher installation torque.

Self-locking nuts are essential for safety-critical and high-vibration applications. Would you like recommendations for a specific use case?