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By Simpson Strong-Tie

Strong-Drive® SDWS Structural Stainless Steel Screw | 316 Grade

$50.20
$50.20
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Screw Length: 3"
Thread Length: 2"
Box Qty: 10
Brand: Simpson Strong-Tie
SKU: SDWS27300SS-RC10
Stainless Steel Structural Screws for Construction | 3"
$50.20
$50.20

Product Details

The Strong-Drive SDWS Timber Screw in 316 Grade Stainless Steel is the ultimate heavy duty structural fastening solution. Engineered like none other, its feature rich design and ease of use make the SDWS Timber SS the ideal choice for in applications such as docks, wharves, piers, boardwalks and ledgers where strength and ultimate corrosion resistance are critical.

Key Features

  • High Quality 316 Grade Stainless Steel provides ultimate corrosion resistance.
  • Heavy duty 0.275" shank ensures high shear strength and holding power.
  • The large flat washer head with deep T-60 Drive has nibs beneath for easy setting, voiding the need for counterboring in most applications. 
  • A SawTooth® point design enable fast starts without the need for predrilling. 
  • Available in lengths from 3" to a mighty 12" with 2" and 3" thread length options.
  • T-60 Driver Bit is included. (replacement driver bit — BIT50T-2-R1)                    


Grades of Stainless Steel

304/305 Grades
Thesw two grades share 98% of the elements making up their alloy composition, with 305 having slightly more carbon. A very popular choice with excellent corrosion resistance and good qualities of strength. Slightly cheaper than 316 Grade, it is a durable and aesthetically pleasing choice for all construction applications.

316 Grade
The addition of molybdenum to the mix is what sets this Marine Grade Stainless Steel apart. Used in highly corrosive environments, this grade is the ultimate choice for structures built close to or even within the ocean or bodies of water. There is no better material for fasteners designed for coastal applications, including docks, jetties, decks, fences and roofs.

Benefits of Stainless Steel Screws

  • Excellent corrosion resistance.
  • High strength and durability.
  • Aesthetically pleasing.
  • Available in different grades to suit specific needs.
  • Can be used in a variety of applications, including construction, marine, and industrial.

Common Uses

  • Decks
  • Fencing
  • Furniture making
  • Boat building
  • Construction and renovation
  • DIY projects, such as treehouses, play yards, or birdhouses

Why Use Stainless Steel Wood Screws?

Corrosion Resistance
No more ugly rust stains on your beautiful project.

Application Versatility
Ideal for all outdoor applications.

Mechanical Strength
Strong and durable.

Aesthetic Appeal
Retain their appearance for decades, adding to the aesthetic appeal of a project.

Material Compatibility
Compatible with a wide range of materials, including pressure-treated lumber, composite decking and cedar.

When to Use Which Grade?

304/305 Grade

  • For general outdoor applications, such as decking and fencing.
  • In areas with moderate exposure to moisture and pollution.
  • For projects that require a medium to high level of corrosion resistance.
  • When cost is a consideration, as 304 grade is more economical than 316 grade.

316 Grade

  • For extreme outdoor applications in coastal areas and regions prone to heavy rainfall and high humidity.
  • In areas with high levels of chlorine, such as pool decks and hot tub structures.
  • In areas with direct exposure to salt water, such as marinas, floating docks, or boardwalks.
  • Able to withstand exposure to the high heat and humidity of saunas.