The Simpson Auto-Set Driver Bit 3-Pack BIT20T-PL-RC3 is a purpose-built driving solution from Simpson engineered specifically for installing Strong-Tie DCU Deck Screws to the precise depth required for a perfectly flush DCU deck plug finish. Featuring a T20 6-lobe drive profile and a non-abrasive depth stop, this bit is compatible with both impact drivers and standard drills, giving composite decking professionals and serious DIYers a reliable, consistent fastening tool across a range of job-site setups.

Key Features

• T20 6-Lobe Drive Profile - matches the drive geometry of Strong-Tie DCU Deck Screws exactly, reducing cam-out and delivering confident torque transfer on every drive
• Auto-Set Depth Control - the built-in depth stop automatically limits penetration to the ideal fastener depth, eliminating guesswork and ensuring a consistently flush surface for DCU plug installation
• Non-Abrasive Depth Stop - protects composite deck board surfaces from marring or scuffing at the point of contact, keeping finished decking looking clean and undamaged
• Impact Driver and Drill Compatible - engineered to perform with both high-torque impact drivers and standard drills, so it adapts to whatever power tool is already on the job site
• Optimized for DCU Composite Fastening Applications - purpose-designed for hand-driving Deck-Drive DCU Composite fasteners with DCU screw plugs, making it a dedicated tool rather than a generic bit pressed into service

Why This Product

• Precision depth setting built in from the start - the auto-set depth stop removes the trial-and-error that typically slows composite decking installations, so every screw seat is at the correct depth for a clean plug fit without repeated test drives
• Surface protection where it matters most - because the depth stop is non-abrasive, installers can drive fasteners right to the board face without leaving marks that would compromise the finished appearance of a composite deck
• Engineered for the specific fastener system - rather than a general-purpose bit, this is a Simpson-designed tool matched to Strong-Tie DCU Deck Screws and Deck-Drive DCU Composite fasteners, meaning drive fit and depth calibration are dialed in for that exact application
• Broad tool compatibility keeps the workflow moving - working equally well with impact drivers and standard drills means crews are not limited to one tool type, reducing downtime and increasing flexibility across different phases of a decking project

Specifications

• Model Number: BIT20T-PL-RC3
• Drive Type: T20 6-Lobe
• Length: 2 in.
• Packaging Quantity: 3

Approved Applications

• Driving Strong-Tie DCU Deck Screws to the correct depth for flush DCU deck plug installation
• Hand-driving Deck-Drive DCU Composite fasteners with DCU screw plugs
• Use with impact drivers for high-torque composite decking applications
• Use with standard drills for controlled, precision fastening in composite deck boards

What's Included

• 3 x Simpson Auto-Set T20 6-Lobe Driver Bits (2 in. length)

Product specifications and features are subject to change without notice. Always follow the manufacturer's installation guidelines and safety recommendations when using power tools and fastening accessories.

Frequently Asked Questions

What type of fasteners is this driver bit designed to work with?

This bit is specifically designed for driving Strong-Tie DCU Deck Screws and hand-driving Deck-Drive DCU Composite fasteners when using DCU screw plugs. It is purpose-built to drive these fasteners to the ideal depth for a flush DCU deck plug installation.

Is this bit compatible with impact drivers?

Yes. The BIT20T-PL-RC3 is engineered for use with both impact drivers and standard drills, making it versatile for a variety of job-site tool setups.

How does the depth stop work, and will it damage my decking surface?

The bit features a non-abrasive depth stop that controls drive depth to deliver a consistent, flush finish every time. Because the depth stop is non-abrasive, it minimizes marring or surface damage to the board during installation.

How many bits are included in this pack, and what is the drive profile?

Each package contains three identical bits. All three bits use a T-20 6-lobe drive profile, which helps reduce cam-outs during driving and maintains consistent torque transfer to protect the fastener head. Each bit is 2 in. in length.