Choosing the Right Size for the Job

Each length of FirmaHold clipped head nail is designed for specific applications:

• 50mm nails – Ideal for thinner timber sections or where shorter penetration is needed (e.g., fencing panels, laths).
• 63mm nails – A versatile mid-range option, suitable for stud work and roofing battens.
• 75mm nails – Perfect for heavier framing tasks, such as floor joists and wall plates.
• 90mm nails – Best for structural work where strong, deep fixing is needed—ideal for framing, roof trusses, and timber frames.

As a rule of thumb, your nail should be around 2.5x the thickness of the material being fixed.

Nail Finishes Explained

Understanding nail finishes helps ensure long-term durability, especially in outdoor or high-humidity environments:

• Bright – Uncoated finish, suitable for dry indoor applications. Conforms to Eurocode 5 and service class 1.
• FirmaGalv – Electro-galvanised coating for light corrosion resistance, suitable for indoor use. Conforms to Eurocode 5 and service class 1.
• FirmaGalv+ – Enhanced electro-galvanised finish with a minimum 12-micron zinc layer. Suitable for indoor and covered outdoor applications. Conforms to Eurocode 5 and service class 1 & 2.
• Hot Dipped Galvanised (HDG) – Heavy-duty zinc coating for improved corrosion resistance. Suitable for both indoor and outdoor applications. Conforms to Eurocode 5 and service class 1, 2 & 3.
• A2 Austenitic Stainless Steel – Corrosion-resistant stainless steel ideal for use in corrosive environments or with materials such as green oak and treated timber. Suitable for external applications. Conforms to Eurocode 5 and service class 3.

Shank Types and Their Purpose

Choosing the right shank design affects holding power:

• Smooth Shank – Easier to drive, used for temporary or lower-holding applications.
• Ring Shank – Offers extra grip in timber, ideal for structural or long-term fixings.
• Part Ring Shank – A hybrid available in FirmaGalv+ nails only. Ringed on the lower half for holding power, with a smooth upper portion for reduced splitting.

Advantages of Using FirmaHold Nails

• Fast application – Compatible with most clipped-head first fix nail guns.
• Clean finish – T head design for a neat, flush fit.
• Fuel cells included – Many of our packs include fuel so there is no need to buy separately.
• Available in bulk – Perfect for high-volume projects.

Step-by-Step: Loading FirmaHold Nails into Your Nail Gun

1. Disconnect power – Always remove the battery or air supply.
2. Open the magazine – Locate and slide the magazine open.
3. Load the nails – Insert your strip of FirmaHold nails in the correct orientation.
4. Insert the fuel cell – If your gun uses a gas cell, slot it into place securely.
5. Close the magazine – Ensure it clicks shut.
6. Reconnect power – Test on scrap timber before beginning your task.

Safety Tips for Nail Gun Use

• Always wear eye protection and gloves.
• Keep your fingers away from the trigger when loading.
• Only fire when the nose is pressed against the surface.
• Never aim the gun at yourself or others.
• Store nail guns securely when not in use.