📦 48PCS Jack Nuts Assortment M4/M5/M6/M8 – Petal Nuts for Tin & Billboard
📦 48PCS Jack Nuts Assortment M4/M5/M6/M8 – Petal Nuts for Tin & Billboard
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📦 48PCS Jack Nuts Assortment M4/M5/M6/M8 – Petal Nuts for Tin & Billboard
Stop Stripping Threads.
Hold Strong in Thin Panels.
Expanding petal jack nuts that create secure threaded fixings in thin metal, hollow plastic, aluminum, and other lightweight substrates up to 5mm thick.
Strong hold in thin materials — up to 5mm. 🔩
Before → After
Stop Spinning Screws
Thin sheet materials often provide too little depth for standard screw threads. Screws spin, loosen, and pull through.
❌ Without It
- Screws that spin and never tighten
- Loose connections over time
- Concentrated pressure around holes
- Damaged thin materials
✅ With Jack Nuts
- Expanding petals grip from behind
- Secure, reusable threaded points
- Wider, more even load distribution
- Clean, professional results
Why Pros Choose This Kit
Expanding Grip. Lasting Hold.
Expanding Petal Grip
Body expands behind the panel. Creates a secure internal thread where standard screws fail.
High-Strength Carbon Steel
Hardness and tensile strength for dependable fastening and resistance to deformation.
Zinc-Plated Protection
Improved resistance to rust and everyday corrosion.
4 Organized Sizes
M4, M5, M6, M8 — separated in a storage case for quick identification.
Petal expansion creates a wider clamping area behind the panel. 🔩
Built for Real Jobs
Thin Materials. Strong Hold.
0–5mm Substrates
Designed specifically for ultra-thin hollow panels with limited thread depth.
Versatile Applications
Thin metal, aluminum alloy, iron sheet, hollow plastic, cardboard, and billboards.
Wider Load Distribution
Expanding petals spread clamping pressure — reducing stress and deformation.
Metal, plastic, aluminum, cardboard — all held securely. 🔧
Complete Kit
48 Pieces. 4 Popular Sizes.
M4 × 20
15 pieces — for lighter precision work
M5 × 25
15 pieces — for everyday fastening
M6 × 25
12 pieces — for larger tasks
M8 × 30
6 pieces — for heavy-duty applications
Organized storage case — every size separated and easy to find. 📦
Perfect For
Who Needs This Kit
Useful for DIY, mechanics, maintenance, and fabrication. 🛠️
Specifications
Product Details
💡 Tip: Match the jack nut, drill size, screw, and installation tool before starting. Keep the flange flat against the surface and avoid excessive tightening on delicate panels.
Frequently Asked Questions
What material thickness is this kit designed for?
The jack nuts are intended for thin, hollow substrates measuring approximately 0–5mm. Confirm the selected size is compatible with your panel.
Which sizes are included?
48 pieces total: M4×20 (15), M5×25 (15), M6×25 (12), and M8×30 (6).
Do I need a special installation tool?
A compatible jack-nut setting tool is recommended for controlled, even expansion. The installation tool is not included in this assortment.
Are the jack nuts rustproof?
The zinc-plated finish improves resistance to moisture and everyday corrosion. It is not permanently rustproof in every outdoor, marine, or chemical environment.
What materials can I use these with?
Thin metal, aluminum alloy, iron sheet, hollow plastic, cardboard, and billboards — any thin panel that needs a secure threaded fixing.
Stop Spinning. Start Holding.
Strong Hold.
Thin Panels.
48-piece jack nut assortment with expanding petals that grip from behind — the solution for thin, hollow materials.
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