Countersunk Steel Rivnuts / Nutserts – M3 to M10 | Threaded Inserts | Knurled Body | All Sizes & Quantities | UK Stock

Countersunk Steel Rivnuts (Nutserts) – Strong Threaded Inserts for Flush Fit Fastening

These high-strength Countersunk Steel Rivnuts – also referred to as nutserts or rivet nuts – provide durable internal threads in thin or soft materials where tapping is not possible. Their countersunk design allows for a flush surface finish, ideal for visible applications or where a smooth exterior is critical.

Manufactured from high-quality steel and featuring a knurled body, these nutserts offer excellent grip, anti-rotation stability, and pull-out resistance, even in softer substrates like aluminum, plastic, or thin steel.

🔩 Key Product Features:

• Material: Heavy-duty zinc-plated steel

• Head Type: Countersunk for flush finish with outer material

• Body Type: Knurled for enhanced rotation resistance

• Threaded Core: Open-ended for through bolt compatibility

• Installation: Simple – suitable with manual or pneumatic rivnut tools

📏 Sizes & Recommended Drill Holes:

• M3 Nutsert → Use 5mm drill hole

• M4 Nutsert → Use 6mm drill hole

• M5 Nutsert → Use 7mm drill hole

• M6 Nutsert → Use 9mm drill hole

• M8 Nutsert → Use 11mm drill hole

• M10 Nutsert → Use 13mm drill hole

🔧 Tip: Drill hole should be approx. 0.1mm larger than rivnut body diameter for best fit

📦 Quantities Available:

10, 25, 50, 100
(Select size & quantity from dropdown menu)

🛠️ Applications & Industries:

• Automotive Bodywork & Trim

• Aerospace & Marine Panels

• Sheet Metal Fabrication

• Kitchen & Furniture Assembly

• Machinery Maintenance

• Electronics Enclosures

• General Engineering & DIY Projects

These nutserts are ideal when flush finishes are required, especially on visible panels or enclosure surfaces.

🚚 Delivery & Dispatch:

• FREE Royal Mail 48 UK Delivery

• Optional Upgrades:

  • Royal Mail 24 – £1

  • FedEx Next-Day Tracked – £5

• Same-Day Dispatch before 1PM weekdays

• Tracked & Signed International Delivery Available

• VAT Invoice Included

🔩 Flush Fit, High Grip, Reliable Threading – Upgrade with Countersunk Nutserts Today

Suitable for pros and DIYers alike, our countersunk rivnuts provide a clean finish and lasting strength where traditional bolts won’t hold.