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SKU: SDS25300SS
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1/4" x 3" Strong-Tie SDS25300SS Heavy-Duty Connector Screw - 316 Stainless Steel, Pkg 950

ICC Certified

Lengths

1-1/2" 2" 2-1/2" 3" 3-1/2"

Quantities

5 25 900 950 1,100 1,500
$1,42500
Ships FREE today when you order in the next 5 hours and 57 minutes

Description

The Simpson Strong-Tie® Strong-Drive® SDS Heavy-Duty Connector Screw is a 1/4"-diameter structural wood screw designed for a wide range of connector, wood-to-wood, and engineered wood applications. Built for strength and speed, the SDS installs without predrilling thanks to its easy-driving Type-17 point, which reduces splitting while ensuring consistent performance.

Tested and approved in multiple structural applications, the SDS screw features a corrosion-resistant double-barrier coating for durability in standard conditions. For harsh or high-exposure environments, this includes a Type 316 stainless steel coating, providing maximum corrosion resistance while delivering the same reliable installation and holding power.

With a large 3/8" hex head and integrated washer, these screws deliver excellent clamping strength and are stamped with the Simpson Strong-Tie® “≠” sign and fastener length for easy inspection after installation.

Key Features

  • Fast, Easy Installation – Type-17 point starts quickly and eliminates predrilling in most applications.
  • Coating Options – Available with double-barrier coating for durability or Type 316 stainless steel for maximum corrosion resistance.
  • Built-In Clamping Power – 3/8" hex head with 0.500" washer delivers strong, secure connections.
  • Easy Identification – Head stamped with the Simpson Strong-Tie® “≠” sign and screw length.
  • Driver Bit Included – Replacement driver bit available (BITHEXR38-R1).

Specifications
Diameter: 1/4"
Length: 3"
Thread Length: 2"
Head Diameter: .438"
Thread Type: Serrated Threads
Drive Type: 3/8" Hex
Head Type: Hex Head
Point Type: Type 17 Point
Material: 316 Stainless Steel
Finish: Plain
Manufacturer Name: Simpson Strong-Tie
Quantity: 950

Reviews
(2)

Customer Reviews

Based on 2 reviews
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A
Andrew May
Good service

Quick delivery and as ordered!

e
edward owsinski
Simpson SS Screws

Fast easy transaction Product is Very expensive and no real bulk buying options. We needed 600 pieces and had to buy 24 Packs of 25 pieces. The packaging cost is ridiculous. at least have 500 pcs boxes or 40 lbs boxes. We are buying for project builds not as a hobby?

Payment & Security

Payment methods

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Continue browsing
  • Person using a drill on a piece of wood with protective gloves.

    Serious Strength and Reliability

    Engineered for demanding projects, Structural Screws deliver outstanding load-bearing power—far more than standard screws—so you can trust your work. Whether it’s a deck, framing or outdoor structure, you can trust it will stay solid and secure for years.

  • Drilling structural screws into wooden planks with a power drill.

    Fast, Effortless Installation

    Self-tapping tips create their own hole, eliminating pre-drilling and speed up installation. Deep, aggressive threads bite firmly into the wood for superior holding power that resists loosening over time. Get a stronger build with less effort.

  • Metal corner brace on wooden beams with a drill bit inserted, indicating construction or woodworking activity.

    Professional-Strength Connector Screws

    Designed to replace nails in approved Simpson Strong‑Tie connectors, Connector Screws deliver superior holding power while being faster and more precise to install. Ideal for contractors and builders who need reliable, code-compliant connections.

Broad selection, fast delivery

Our footprint

Our nationwide network of distribution facilities offers more product selection and faster delivery times. So far we’ve made remarkable progress in our expansion efforts, effectively doubling our capacity by adding a new 47,000 sq. ft. warehouse in Simpsonville, South Carolina, in addition to our existing 60,000 sq. ft. facility in Urbana, Iowa.

Broad selection, fast delivery

Our experience

We pride ourselves on delivering a user-friendly, high quality experience online and over the phone. Our knowledgeable team of experts is readily available via phone to assist with product questions and custom pricing inquiries. We’re available Monday thru Friday from 7:00 AM – 5:00 PM CST. We look forward to supporting you on your next job.

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