Square 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。

Square lock nuts are a type of locking nut designed to resist loosening under vibration and torque. They are commonly used in industrial and mechanical applications where secure fastening is critical. Here’s a detailed description:

Features of Square Lock Nuts:

1. Shape – As the name suggests, these nuts have a square profile instead of the typical hexagonal shape, providing a larger surface area for gripping with wrenches or other tools.

2. ロック機構 – They often incorporate a locking feature such as:

   • Nylon Insert (PAL Nut) – A nylon ring inside the nut creates friction against the bolt threads to prevent loosening.

3. 素材 – Typically made from steel (plain, zinc-plated, or stainless steel), brass, or nylon for corrosion resistance and durability.

利点がある：

• 高トルク耐性 – The square shape allows for better grip and higher torque application.

• 耐振動性 – The locking mechanism prevents loosening in high-vibration environments (e.g., machinery, automotive, and aerospace applications).

• No Need for Additional Lock Washers – The built-in locking feature eliminates the need for separate lock washers in many cases.

Installation Notes:

• Should be tightened to the recommended torque specifications.

• Nylon-insert types may lose effectiveness after repeated use due to wear.

• Serrated base types require a clean, flat surface for optimal grip.