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By Simpson Strong-Tie

Strong-Drive® SDWH Timber-Hex Stainless Steel Screw | 316 Grade

$47.15
$47.15
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Length: 3"
Thread Length: 3"
Box Qty: 10
Brand: Simpson Strong-Tie
SKU: SDWH27300SS-R10
Stainless steel hex bolt
$47.15
$47.15

The Strong-Drive® SDWH TIMBER-HEX SS screw is a 316 Grade stainless-steel structural fastener specifically designed to take the place of lag screws. How are they better?  These 0.185" and 0.275" diameter hex-head fasteners require no predrilling, making them easier and much faster to install than typical lag screws. The range meets 2018 and 2021 IRC® and IBC® code requirements for most common applications.

  • Type 316 stainless steel for maximum corrosion protection
  • No predrilling necessary in most applications
  • Driver bit included (replacement driver bit — BITHEXR516-R1 or BITHEXR12-R1)
  • Can be used in ledger applications
  • Unique squared-off “box” thread design with raised-ridge crest technology significantly reduces driving torque 
  • Hex-washer head provides large bearing area for powerful driving
  • Hex-Driver included.
  • Thread length is 3" for maximum grip. 

  • Structural wood-to-wood and engineered-wood connections, including ledger

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.