Simpson Strong-Tie Strong-Drive SDWS TIMBER SS Screw

Introducing the Strong-Drive SDWS Timber SS heavy-duty structural fastener in severe corrosion-resistant Type 316 stainless steel. Its heavy-duty 0.275"-diameter shank, SawTooth® point and flat washer head make the SDWS Timber SS the ideal choice for use in applications such as docks, wharves, piers, boardwalks and ledgers where strength and severe-corrosion resistance are critical.

• 0.275" shank diameter for heavy-duty structural applications
• SawTooth point design for fast starts and no predrilling
• Ideal replacement for spikes, lag bolts and lag screws
• No predrilling, no counterboring required for most applications
• Large flat head with nibs can drive flush to surface with reduced splintering
• Deep T50 6-lobe recess for a secure drive (replacement driver bit - BIT50T-2-R1)

Specifications (all models)

• Fastener Type: Hand-Drive Screw
• Shank Diameter (in.): 0.275
• Head Type: Washer Head
• Head Diameter (in.): 0.650
• Drive Type: T50 6-Lobe
• Point Type: SawTooth Point
• Threads per Inch: 5
• Material: Type 316 Stainless Steel
• Application: Structural wood-to-wood and engineered-wood connections in coastal or severe corrosion environments. Typical applications include piers, boardwalks, wharves and ledgers.

Available options (see each model for exact values)

• Length (in.): 3, 4, 5, 6, 8, 10, 12
• Thread Length (in.): 2, 3
• Dimensions: 0.275 x 3, 0.275 x 4, 0.275 x 5, 0.275 x 6, 0.275 x 8, 0.275 x 10, 0.275 x 12
• Packaging Type: Bucket, Box, Clamshell