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.

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.

• 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.