Door/Window Frame Screw

• Screw diameter: 7.5 mm.
• Pin material : expansion sleeve made of regular 8.8 grade galvanized steel up to 5µm.
• Substrate material : concrete , natural stone, full ceramic and checker brick, full silicate brick, lightweight concrete.
• The price is for 100 pieces.

Usage:

• fixing fireproof doors,
• fixing door and window frames,
• fixing of fireproof cabling,
• fastening wooden slats.

Benefits:

• small hole diameter,
• thread along the entire length prevents the frame from sliding towards the ground,
• non-flammable fixing.