Key Features

Built for Uplift The screw pattern is configured to deliver high uplift design values, which matters when the connection needs to hold steady under demanding structural loads. Welded Steel Strength Made from 7-gauge steel with certified welds, this column cap is built for confidence at the beam-to-post connection instead of relying on lighter hardware. SDS Screw Install The Simpson Strong-Tie L-Shape End Column Cap for 4x Beams, 6x Post w/ SDS Screws, Skewed Left (ECCLLQ464SDS) installs with included Strong-Drive SDS connector screws for a faster, lower-profile connection than standard through-bolts.

Overview

The Simpson Strong-Tie L-Shape End Column Cap for 4x Beams, 6x Post w/ SDS Screws, Skewed Left (ECCLLQ464SDS) is a structural column cap for connecting a 4x main beam and 4x side beam to a 6x post in an end-of-beam layout. This is a column cap designed for wood-to-wood beam-to-post connections where two beams meet in an L formation on top of a post. Model Number: ECCLLQ464SDS.

What sets this connector apart is how it handles load transfer at a complicated intersection. Instead of piecing together a custom connection in the field, this Simpson Strong-Tie column cap gives you a purpose-built bracket with screws configured to provide high uplift design values. For the ECCLQ-SDS series, the published allowable loads shown in the provided data include 2,835 lb uplift, 1,840 lb download side beam, and 3,795 lb total download, with 6,780 lb shown for main-beam total load. If those numbers drive your design, this hardware is built for that kind of structural work.

The connector is made from 7-gauge steel for this size range and uses certified welds, which is a big deal on a structural bracket like this. That means the joint strength is part of the design, not an afterthought. The gray paint finish provides the standard coated finish from Simpson Strong-Tie, and the left-hand orientation matters here: this ECCLLQ version is the skewed-left configuration, while right-side layouts require the ECCLRQ version.

Installation is built around Strong-Drive SDS Heavy-Duty Connector screws, not lag screws. The provided instructions specifically call for 1/4 in. x 2-1/2 in. SDS screws in all round holes, and they also note that lag screws will not achieve the same load. That matters because the connector, fastener type, and hole pattern are engineered as one system. You also get diamond holes for temporary fastening, which helps hold alignment before final fastening is complete.

In real jobsite terms, this beam connector is for builders and framers who need a cleaner, faster way to secure intersecting wood beams on a post without going to standard through-bolts. The lower-profile screw installation can simplify assembly and reduce the bulk of the finished connection while still keeping the structural intent of the hardware intact. No additional welding is allowed during installation, so the field work stays consistent with the tested configuration.

This Simpson Strong-Tie bracket is best suited for structural wood construction where nominal member sizes are a 4x main beam, 6x post, and 4x side beam. If you are matching hardware to a specific side-beam direction, pay close attention to orientation before ordering. For the right application, this is a smart piece of hardware because it solves a very specific framing problem with a connector that is purpose-built for the load path, the beam layout, and the fastener system.

Purpose-Built for L-Shaped Beam Connections

This connector is made for a very specific structural situation: two wood beams meeting in an L formation on top of a post. That saves field guesswork and gives you a cleaner path to a proper beam-to-post connection.

• Nominal member sizes: 4x main beam, 6x post, 4x side beam
• Left-direction layout; use the right-hand model only if the framing layout calls for it

Faster Installation with the Right Fastener System

The connection is designed around Strong-Drive SDS Heavy-Duty Connector screws, which helps speed up installation compared to bolt-based methods and keeps the hardware profile lower at the joint.

• Install 1/4 in. x 2-1/2 in. Strong-Drive SDS screws in all round holes
• Lag screws are specifically noted as not achieving the same load

Built to Handle Structural Loads

If the connection point is doing real structural work, the bracket itself needs to be up to the task. This one uses 7-gauge steel, certified welds, and a hole pattern that supports strong uplift performance.

• Screws are configured to provide high uplift design values
• Diamond holes help with temporary fastening and alignment during setup

What’s in the Box

• (1) Simpson Strong-Tie ECCLLQ464SDS L-shape end column cap
• Strong-Drive SDS Heavy-Duty Connector screws
• Installation requires 1/4 in. x 2-1/2 in. SDS screws in all round holes

At a Glance

7-Gauge Steel 2,835 lb Uplift 3,795 lb Total Download 6,780 lb Main Beam Total

Key Specifications

Compatibility

Fastener System Designed for Strong-Drive SDS Heavy-Duty Connector screws. The installation notes call for 1/4 in. x 2-1/2 in. SDS screws in all round holes. Framing Layout Fits a left-direction L-shaped beam-to-post layout using a 4x main beam, 6x post, and 4x side beam. Orientation Match This is the skewed-left version. Right-side applications require the ECCLRQ model.

Built For

Construction Carpentry General Contracting Wood Framing Beam-to-Post Connections End-of-Beam Applications Structural Wood Work

Pro Tip

Double-check left versus right orientation before you order or unload hardware to the site. On a connector this specific, getting the handedness wrong can stop the install cold even when every other size is correct.

Tool Nut’s Take

Tool Nut’s Take

Why the Simpson Strong-Tie L-Shape End Column Cap for 4x Beams, 6x Post w/ SDS Screws, Skewed Left (ECCLLQ464SDS) earns its keep

This is the kind of specialty connector that saves time and headaches when the framing layout is specific and the connection actually matters.

• Who it’s for: Framers, builders, and contractors handling structural wood connections where a main beam and side beam meet on top of a post in a left-hand L layout.
• Why it stands out: You get 7-gauge steel, certified welds, and an SDS screw pattern built for strong uplift performance instead of a generic bracket that almost fits.
• Worth knowing: This is not a universal cap. Orientation matters, the member sizes matter, and Simpson specifically calls for SDS connector screws rather than lag screws if you want the intended load performance.

Common Questions

• What framing sizes is this connector made for? It is sized for a 4x main beam, 6x post, and 4x side beam.
• Is this the left- or right-hand version? This model is the skewed-left version. The right-hand layout uses the ECCLRQ model.
• Can lag screws be used instead of SDS screws? No. The provided installation information states that lag screws will not achieve the same load.
• What is the main application for this bracket? It is used for wood-to-wood beam-to-post connections in end-of-beam applications where two beams intersect in an L formation on top of a post.