The Simpson Strong-Tie ECCLLQ666SDS L-Shape End Column Cap is engineered to create strong, reliable column-to-beam connections in end-of-beam applications where two beams intersect in an "L" formation on top of a column. Sized for 6x main beam, 6x post, and 6x side beam nominal members, this left-skewed column cap helps distribute load from intersecting beams and provides critical structural support at the connection point. Instead of standard through bolts, it uses Strong-Drive SDS Heavy-Duty Connector screws - included in the box - for a faster, lower-profile installation. Built from 7-gauge steel with certified welds and a Simpson Strong-Tie gray paint finish, this connector is proudly made in the United States.

Key Features

• SDS screw configuration engineered for high uplift design values - delivers the load resistance structural connections demand without requiring oversized hardware or additional brackets
• Certified welds throughout - gives buyers confidence that every joint meets verified strength and loading standards, reducing risk at critical connection points
• Diamond holes for temporary fastening - lets installers position and hold the cap in place during layout before final fastening, saving time and reducing errors on the job
• Strong-Drive SDS Heavy-Duty Connector screws included - eliminates a separate trip to the hardware store and ensures the correct fastener is always paired with the connector
• Left-side beam orientation - purpose-built for L-formation end-of-beam layouts where the side beam runs to the left; the ECCLRQ model is available for right-side applications
• 7-gauge steel construction - heavy-gauge material provides the structural integrity required for demanding column-cap applications in timber framing and post-and-beam construction
• Simpson Strong-Tie gray paint finish - provides a consistent, professional appearance and baseline surface protection for the connector

Why This Product

• An all-in-one fastening solution - the included Strong-Drive SDS screws are pre-selected and configured specifically for this connector, so builders get the right fastener and the right load values without guesswork or separate sourcing
• Faster installation with a cleaner profile - SDS screws drive quicker than standard through bolts and sit lower on the finished connection, reducing installation time and keeping the assembly tight and unobtrusive
• Engineered specifically for L-formation beam intersections - where a generic connector or field-fabricated bracket would require additional hardware or compromise load transfer, this cap is purpose-designed for the exact geometry of an end-of-beam L-junction on a single column
• Verified strength at every joint - certified welds combined with a screw pattern optimized for uplift resistance mean the connection performs as engineered, giving structural confidence to contractors, designers, and inspectors alike

Specifications

• Model Number: ECCLLQ666SDS
• Member Size: 6x main beam, 6x post, 6x side beam
• Gauge: 7-gauge steel
• Finish / Coating: Simpson Strong-Tie Gray Paint
• Beam Orientation: Skewed Left (Side beam oriented left)
• Fastener Type: 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector Screws
• Country of Origin: United States

Approved Applications

• End-of-beam applications where two beams meet in an "L" formation on top of a column
• Structural column-to-beam connections requiring high uplift design values
• Projects requiring a lower-profile fastening solution compared to standard through bolts
• Applications using 6x nominal main beam, side beam, and post members

What's Included

• 1 x Simpson Strong-Tie ECCLLQ666SDS L-Shape End Column Cap (Left)
• 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws (Model: SDS25212, included)

Installation

• Install 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws, which are provided, in all round holes. Lag screws will not achieve the same load.
• No additional welding is allowed.
• Diamond holes are provided for temporary fastening during positioning.

Options

• Contact us for Configurable Options and Special orders
• Many combinations of beam and post sizes can be manufactured (refer to worksheet Options for Multiple-Beam Column Caps).
• Available in widths up to 8" wide.
• ECCLQ is available in left or right side beam orientations. Specify ECCLLQ or ECCLRQ.
• Straps may

Frequently Asked Questions

What beam and post sizes is this column cap designed for?

The ECCLLQ666SDS is designed for nominal 6x main beam, 6x post, and 6x side beam member sizes, making it suited for end-of-beam applications where two 6x beams intersect in an "L" formation on top of a 6x post.

What fasteners are required, and are they included?

This column cap installs using 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws (Model: SDS25212), which are included with the connector. These screws provide faster installation and a lower profile compared to standard through bolts.

Is this the correct model if I need the side beam oriented to the right?

No. The ECCLLQ666SDS features a side beam oriented to the left. If you need the side beam oriented to the right, you should order the ECCLRQ model instead.

What material and finish is used on this column cap?

The ECCLLQ666SDS is constructed from 7-gauge steel with certified welds and is finished with a Simpson Strong-Tie gray paint coating for durability in structural applications.