Metal Petal Expansion Jack Nuts Kit

🔩 Stripped Threads? Thin Panels That Won't Hold a Screw?

Standard bolts pull straight through thin sheet metal, plastic panels, and hollow substrates. Once a thread strips, the whole fastening point is compromised — and a loose panel on a vehicle or machine is a safety issue, not just an inconvenience. Jack nuts solve this permanently.

💡 Why Jack Nuts Outperform Standard Fasteners on Thin Materials

When you can only access one side of a panel, conventional nuts are useless. Jack nuts expand behind the material as you tighten the screw — creating a strong, permanent anchor point from a single side. No backing plate, no welding, no second pair of hands needed.

⚡ Drill. Insert. Expand. Done.

• 🔧 Petal Expansion Design — The unique petal-shaped body expands radially behind the panel as the screw is tightened, distributing clamping force evenly across a wide area. Creates a rock-solid anchor that won't pull through or spin.
• 🛡️ Solid Metal Construction — Made from high-grade metal for maximum strength and corrosion resistance. Handles vibration, heat, and mechanical stress without loosening — ideal for automotive and industrial environments.
• ⚙️ Single-Side Access Installation — No need to reach behind the panel. Drill the hole, tap in the anchor, tighten the screw — the anchor sets itself. Works in enclosed cavities, door panels, dashboards, and structural frames.
• 📍 M5 & M6 Sizes Available — Choose the thread size that matches your application. Mix packs available for jobs requiring both sizes. Screws included in every pack.
• 🚗 Wide Application Range — Automotive body panels, caravans, marine fittings, HVAC ducting, electrical enclosures, thin-wall tubing, and more. Anywhere a strong blind fastener is needed.

🛠️ Installation — 4 Simple Steps

1. Step 1: Drill a hole to the recommended diameter for your chosen size (M5 or M6).
2. Step 2: Tap the jack nut into the hole until it sits flush with the surface.
3. Step 3: Insert the screw and tighten — the petal body expands and locks behind the panel automatically.
4. Step 4: Remove the screw, pass it through your fixture, and re-tighten into the set anchor. Job done.

🔍 Specifications

• Type: Petal Expansion Jack Nut (Blind Anchor)
• Material: Metal (Silver finish)
• Available Sizes: M5 / M6 / M5+M6 mixed
• Pack Options: 10 pcs / 20 pcs
• Includes: Expansion nuts + matching screws

📦 Package Contents

• 10 or 20 × Metal Petal Expansion Jack Nuts (with matching screws)
• Size options: M5 only / M6 only / M5+M6 mixed pack

🔩 One-side access. Permanent hold. No backing required.