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SKU: SDS25112MB
(15)

1/4" x 1-1/2" Strong-Tie SDS25112MB Heavy-Duty Connector Screw - Double-Barrier Coating, Pkg 300

Lengths

1-1/2" 2" 2-1/2" 3" 3-1/2" 4-1/2" 5" 6" 8"

Quantities

10 25 50 100 125 150 200 250 300 400 500 600 800 900 950 1,100 1,300 1,500
$8200
Ships Nov 16 when you order now

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.

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).

SD vs SDS Screws | Which Simpson Strong-Tie Connector Screw Should You Use?

Specifications
Diameter: 1/4"
Length: 1-1/2"
Thread Length: 1"
Head Diameter: .438"
Thread Type: Serrated Threads
Drive Type: 3/8" Hex
Head Type: Hex Head
Point Type: Type 17 Point
Material: Carbon Steel
Finish: Double-Barrier Coating
Manufacturer Name: Simpson Strong-Tie
Quantity: 300

Reviews
(15)

Customer Reviews

Based on 15 reviews
93%
(14)
7%
(1)
0%
(0)
0%
(0)
0%
(0)
T
Terry
Shop

I was attempting to pay when my purchase was hijacked and completed by shop. No Verify, just something telling me my order was complete. Great, the wrong shipping address was on there and I had to insure that I contacted the company before they were shipped to the wrong address. FastenersPlus did a great job of correcting, but both my wife and myself absolutely hate the shop purchasing app.

C
Christian Maloof
Just what we needed!

Fair price, arrived quickly and was exactly what we needed.

C
Carolina Stairs Inc
Great Customer Service

Always get great customer service with Sean Waters. Product comes very quickly usually in a day or so.

B
Bridget Brunner
Shipped fast

Items were shipped and arrived promptly

K
Kevin Sing
Great prices

Was able to get close to the quantities I needed for this project with the variety of
screws per box offered. Great prices!

Payment & Security

Payment methods

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

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 80,000 sq. ft. warehouse in Simpsonville, South Carolina, in addition to our existing 136,400 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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