In coastal regions or areas with high salt spray, standard coated fasteners eventually succumb to red rust, compromising the structural integrity of the roof. Our 304 Stainless Steel Pancake Head Screws, distributed by A1A Wholesale Supply, offer permanent peace of mind. Because 304 stainless steel is inherently corrosion-resistant throughout the entire body of the screw, there is no coating to chip, scratch, or wear off during installation.

The ultra-flat pancake head is specifically designed for concealed-fastener systems. It provides a flush finish that allows metal roofing panels to slide over clips without interference, preventing the “oil-canning” or dimpling effect often caused by hex-head or bulkier fasteners. The T-17 point is a critical feature for stainless steel; it clears wood fibers as it drives, reducing friction and preventing the screw from snapping or “galling” during high-speed installation into tough wood decks.

Product Details

• Material: 304 Grade Stainless Steel (Elite Corrosion Resistance).

• Head Style: Ultra-Low Profile Pancake Head.

• Drive Type: Square Drive (Sq Dr) for superior bit engagement.

• Point Type: T-17 Self-Drilling Wood Point.

• Thread: #10-9 Heavy Duty Wood-to-Metal.

• Size: 1-1/2″ (38.1 mm) Length.

Features & Benefits

• Lifetime Corrosion Protection: 304 Stainless Steel is the gold standard for roofing within 3,000 feet of the ocean or in high-moisture environments.

• Concealed Fastener Ready: The low-profile head ensures a smooth, professional finish for standing seam and snap-lock metal panels.

• T-17 Precision: The integrated cutting slot eliminates the need for pre-drilling in most wood substrates, saving time and labor on the roof.

• No Galvanic Reaction: Ideal for use with stainless steel or aluminum roofing clips, preventing the electrolytic corrosion that occurs when dissimilar metals meet.

• Square Drive Stability: The deep square recess provides a stable, “no-wobble” driving experience, which is essential when working with the slightly softer properties of stainless steel.

Applications

• Coastal Metal Roofing: The primary fastener for standing seam clips in beachside or salt-air environments.

• ACQ Treated Lumber: Stainless steel is the only material recommended for use with high-copper pressure-treated wood to prevent chemical corrosion.

• Aluminum Panel Systems: Attaching aluminum clips and trim to prevent galvanic reaction.

• Premium Residential & Commercial: Used in “forever roofs” where the fastener must match the 50+ year lifespan of the metal panels.

Technical Specifications