M6 x 90mm Coach Screw A2 Stainless Steel DIN 571

Corrosion Resistant Coach Screw

Heavy duty, A2 stainless steel M6 coach screw, manufactured in stainless steel for a good level of corrosion resistance making them ideal for both internal and external applications. Specifically designed for timber applications where a reliable and strong hold is needed every time.

Manufactured with a thick cylindrical thread which allows for a strong hold and high pull out resistance when used within wood, while the hex head allows for installation with a range of conventional tools.

A great combination that sees the coach screw used across many sectors by professionals and DIY enthusiasts alike.

Coach screw specification:

• Thread Diameter (TD): M6 - 6mm
• Length (L): 90mm
• Thread Length (TL): 54mm
  
• Head Width (H): 10mm
• Conformity: DIN 571 Standards
• Material: A2 Stainless Steel

Used by professionals and DIY fans alike, the A2 stainless-steel M6 coach screws offer exceptional hold and corrosion resistance.

Part of a larger and growing range of A2 stainless steel coach screws from Fusion Fixing.

FAQs about stainless steel coach screws

What are hex head coach screws used for?

Hex head coach screws are heavy-duty screws designed for securing timber to timber, or timber to metal. The heavy-duty nature of the coach screw sees them commonly used in decking, fencing, roofing, and heavy joinery applications. The hexagonal head allows for higher torque using a spanner or socket for a firm, reliable hold.

How are coach screws different from coach bolts?

A coach screw had a pointed tip more like traditional screws and threads directly into wood without a nut. A coach bolt (also called a carriage bolt) has a flat tip, is used with a pre-drilled hole, and passes through the material being secured on the other side with a nut.

Can I use coach screws outside?

Yes, these stainless-steel coach screws can be used outside as they have a high resistance to corrosion. For harsher areas like saltwater environments, A4 stainless steel coach screws are advised as they offer the highest corrosion resistance.

Do I need to drill a pilot hole first?

Yes, with the heavy-duty nature of the coach screw, always pre-drill a pilot hole before installation.

Should I use a washer under the head?

It’s good practice to use a flat washer beneath the hex head as this spreads the load across a wider area and protects the timber surface.

Which material should I choose - BZP, A2, or A4 stainless steel?

The coach screws at Fusion Fixings are available in 3 material types which cover a larger range of applications.
•    BZP (Bright Zinc Plated): Ideal for indoor use or dry conditions.
•    A2 Stainless Steel: Great for outdoor projects such as fences or decking.
•    A4 Stainless Steel: Marine-grade corrosion resistance and the best choice for coastal or highly corrosive environments.

Can I use coach screws in brick, block, or concrete?

Coach screws are primarily for timber; however, they can be used in masonry for certain applications if combined with a suitable wall plug or anchor.

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