Multi-material No. 9 Label X 1-1/2 In. L Star Flat Head Serrated Construction Screws

The SPAX #9 x 1-1/2 In. Flat Head Stainless Steel Construction Screws are premium fasteners engineered for outdoor and interior wood projects where corrosion resistance and reliable performance are essential. These screws feature 304 stainless steel construction that prevents rust and staining, making them ideal for decking, railing, fencing, and other applications in coastal or damp environments, including cedar and redwood applications.

Designed for both professional contractors and DIY enthusiasts, these screws combine advanced engineering with ease of installation. The patented serrated thread design and self-drilling 4CUT POINT technology eliminate the need for pre-drilling in wood, saving time and effort on the job. The flat head design with patented MULTIhead technology countersinks flush into wood, delivering a clean, finished appearance while maintaining structural integrity.

Features and Benefits

• Serrated Thread Technology: Patented thread serration allows faster driving, easier installation, and reduces wood splitting for a stronger, cleaner finish.
• Self-Drilling Design: The unique 4CUT POINT technology eliminates pre-drilling requirements in wood, increasing efficiency and reducing preparation time.
• T-Star Plus Drive: Superior bit engagement provides quicker installation with less effort, enabling one-hand overhead driving and reducing the risk of bit slipping or stripping.
• Countersunk Flat Head: The MULTIhead design countersinks the screw flush in wood, creating a smooth surface for superior design and functional qualities.
• Stainless Steel Corrosion Resistance: 304 stainless steel construction provides exceptional protection against rust and staining in outdoor, coastal, and high-moisture environments.

Specifications

• Brand: SPAX
• Model: 4197000450404
• Size: #9
• Length: 1-1/2 inches
• Head Type: Flat head (countersunk)
• Drive Type: T-Star Plus (T-20+)
• Material: 304 Stainless Steel
• Thread: Serrated