4mm (No.8) x 50mm Slotted Countersunk Wood Screw, A2 Stainless Steel, DIN 97

Corrosion resistant wood screw

Corrosion resistant 4 x 50mm slot countersunk wood screw, designed for a strong flush fit.

Manufactured from A2 stainless steel that provides excellent corrosion resistance, making it perfect for both indoor and outdoor applications.

Designed with a strong thread for great pull-out resistance, shank for strength, and a slot drive recess with a countersunk head that ensures a clean and flush finish every time.

A great combination that sees these slotted, countersunk, wood screws widely used across many sectors by DIY enthusiasts and professionals alike. 

50mm countersunk wood screw specifications

• Diameter (TD): 4mm (No.8)
• Length (L): 50mm
• Thread length (TL): 30mm approx.
• Head width (HW): 7.9mm max
• Drive type (DT): Slot
• Material: A2 stainless steel
• Standard: DIN 97
  

50mm countersunk wood screw benefits

• A2 Stainless Steel for high corrosion resistance
• Countersunk head for a flush finish every time
• Suitable for a variety of materials, including wood, chipboard, and MDF
• Meets DIN 97 quality standards
• Versatile uses for both indoor and outdoor applications
  

Part of a larger range of wood screws from Fusion Fixings. Quantities start from just one to as many as you need to get the job done, with bulk price discounts.

Frequently asked questions about slotted wood screws

What is a slotted countersunk wood screw used for?

Slotted countersunk screws are normally used in woodworking, joinery, and restoration projects. The slot head provides a more traditional appearance, while the countersunk head allows a flush finish every time.

Can I use these screws outdoors or in marine environments?

Yes - Manufactured in A2 stainless steel offers a high level of corrosion-resistant, making these screws suitable for both internal and external projects including decking, fencing, and gates. 

For areas near salt water and marine environments, A4 stainless steel is recommended as this offers a very high resistance to corrosion and are specifically used for marine environments.

Can I use a power driver with slotted screws?

Yes, with caution - The slotted head screws can be used with power tools, but manual screwdrivers are recommended to avoid slipping or damaging the head. If you do need to use a power tool, a steady slow approach is advised.

What size pilot hole should I drill?

For hardwoods, a pilot hole slightly smaller than the screw diameter is recommended. For softwoods, the pilot hole can be narrower or sometimes skipped. For example, a 2.5 - 3mm pilot hole would be ideal in hardwood for a screw that’s 4mm wide.

Are A2 stainless slotted screws magnetic?

No - A2 stainless is typically non-magnetic or only slightly magnetic after cold working.

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