The Simpson 1/4-20 x 3.25 Inch Structural Screw is a purpose-built hex head fastener engineered specifically for use with the Simpson ICFVL Ledger Connector System for Wood Ledgers. Designed to deliver reliable, consistent connections during ledger installation, this screw brings together the precise thread geometry and head configuration that structural fastening tasks demand - making it a dependable choice for contractors and builders working with ledger connector assemblies.

Key Features

• Purpose-Designed for the ICFVL Ledger Connector System - Engineered to work specifically with Simpson's ICFVL Ledger Connector System for Wood Ledgers, so installers get assured compatibility and consistent performance without guesswork.
• 1/4-20 Thread Specification - A 1/4" diameter with a coarse 20-threads-per-inch pattern provides strong thread engagement and dependable holding power in structural ledger connections.
• Hex Head Configuration - Accepts standard hex drive tools, allowing for fast, secure driving during installation and reducing the need for specialty equipment on the job site.
• Single Required Drill Bit Size - The 3/8" pilot hole requirement simplifies tool selection, keeping setup straightforward and minimizing delays during structural fastening work.

Why This Product

• Verified System Compatibility - These screws are the approved fastener for the Simpson ICFVL Ledger Connector System, eliminating the risk of using an incorrect or undersized screw in a structural ledger assembly.
• Streamlined Installation - The hex head design paired with a single standardized drill bit size means fewer tool changes and a more efficient workflow on demanding job sites.
• Structural-Grade Reliability from a Trusted Brand - Sourced directly from Simpson, a recognized name in structural connectors and fasteners, these screws are built to perform in the exact application for which they were designed.
• Bulk Pack Convenience - Each pack contains enough fasteners to support extended ledger connector installations, reducing interruptions and keeping work moving on larger structural projects.

Specifications

• Model Number: ICF-D3.25
• Diameter: 1/4"
• Length: 3-1/4"
• Threads Per Inch: 20
• Head Type: Hex Head
• Required Drill Bit Size: 3/8"
• Pack Quantity: 128

Approved Applications

• Installation of the Simpson ICFVL Ledger Connector System for Wood Ledgers
• Structural fastening in ledger connector assemblies requiring 1/4"-20 x 3-1/4" hex head screws

What's Included

• 128 x Simpson ICF-D3.25 1/4-20 x 3-1/4" Hex Head Screws

Frequently Asked Questions

What application are the Simpson ICF-D3.25 screws designed for?

These screws are purpose-built for use with the Simpson ICFVL Ledger Connector System for Wood Ledgers. They are engineered specifically for that system to ensure proper fit and performance during ledger installation.

What size drill bit is required when installing these screws?

A 3/8" drill bit is required for pilot hole preparation when using the ICF-D3.25 screws, simplifying tool selection on the job site.

What are the thread specifications for these screws?

The ICF-D3.25 screws feature a 1/4"-20 thread specification, meaning a 1/4" diameter with a coarse 20 threads-per-inch pattern, which provides strong thread engagement and dependable holding power.

How many screws are included in each pack?

Each pack of the Simpson ICF-D3.25 contains 128 screws, providing an ample bulk supply to minimize job-site interruptions and improve installation efficiency on demanding structural fastening tasks.