Features and Benefits:

• 🔩 Self-Drilling Point + Self-Tapping Thread — drills into steel or aluminium reinforcement and cuts its own threads in one step

• ⏺ Countersunk Head with Ribs — ensures flush finish under hardware and better countersinking grip

• 🛡 Martensitic Stainless Steel Material — ideal for use in corrosive or outdoor environments

• ✨ Silver Organic Coating — attractive metallic finish with extra corrosion resistance

• 🏗 Perfect for Reinforced Frames — engineered for use with frames containing steel/aluminium reinforcement

Description:
These window fabrication screws deliver exceptional performance when mounting hardware onto reinforced frames. The self-drilling point allows piercing of steel or aluminium without needing a pilot hole, while the self-tapping thread secures the material firmly. The countersunk head, enhanced with ribs, ensures a clean, flush installation under hinges, handles, or locking mechanisms. Constructed from martensitic stainless steel and finished in silver organic coating, these screws resist corrosion in damp or harsh environments. Designed especially for window fabricators, glaziers, and installers working with PVC, aluminium or composite frames reinforced internally, these fasteners combine reliability with a professional aesthetic.

Our Delivery Options

Express 2/4 Day Delivery

• Delivery Fee:
• Order By: 
• Delivery Time: Before 6pm Monday-Friday

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Next Business Day Delivery

• Delivery Fee:
• Order By: 
• Delivery Time: Before 6pm Monday-Friday

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Pre-12 Next Business Day Delivery

• Delivery Fee: £12.99 delivery for all pre-12 orders
• Order By: 
• Delivery Time: Before 12pm Monday-Friday

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Remote Areas Delivery

• Delivery Fee:
• Order By: 
• Delivery Time: Standard delivery (2-4 days)

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Weekend Delivery

• Delivery Fee:
• Order By:
• Delivery Time: Before 6pm Saturday

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Good To Know

For orders to some addresses, especially in the Highlands of Scotland and Offshore, next day delivery options are not available and delivery can take several days. Saturday delivery is not available for remote areas.

Items over 30kg: Items over 30kg can only be delivered from Monday to Friday. If ordered before 3pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.