Diablo Bolted Splice

CAST CONNEX Diablo Bolted Splices™ (DBS) are cast steel fittings that enable unobtrusive field bolted splices in circular hollow structural section (HSS) members.

We provide design-build services

CAST CONNEX specializes in the engineering and provision of cast steel components for building and bridge structures.

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Simplified Fabrication and Erection

The Diablo Bolted Splice (DBS) streamlines fabrication and erection by simplifying shop-welding, eliminating field welding and minimizing on-site labor. Each DBS connector features a built-in weld bevel, allowing adjoining tubular members to be square-cut for straightforward shop welding. Precision-located, pre-drilled bolt holes enable fast and reliable field bolting, reducing installation time and mitigating overall project risk. Whether architecturally exposed or concealed with optional thin-gauge cover plates, DBS connectors offer design versatility without compromising constructability.

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High Strength, Low Stress

DBS Connectors are pre-engineered to simplify specification and accelerate design workflows. Connector and bolt pattern capacities are provided in clear, easy-to-use data sheets. Because DBS Connectors form fixed structural splices, combined axial, flexural, shear, and torsional loading must be considered—often a complex task for bolted end-plate connections. CAST CONNEX has done the engineering work upfront, presenting the results in a series of convenient interaction curves for each connector size and bolt type, aligned with AISC, CSA, and Eurocode design standards.

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The DBS Family

DBS connectors are available for a range of tubular member sizes—from small to large diameters—providing architects, engineers and fabricators with flexibility across a wide spectrum of structural steel applications. DBS connectors are produced in cast steel grades that are readily weldable to conventional rolled steel materials, ensuring reliable performance and seamless integration with regional standards. For larger diameter members, DBS connectors feature a hollow interior, which can be advantageous for hot-dip galvanizing or for accommodating conduit and other utilities.

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Testimonials

Sphere Las Vegas

"Cast Connex team approach was super enthusiastic, professional, and of the highest technical and digital quality. The final cast nodes are impressive. Well done, and thank you."

Rastislav (Rasti) Bartek

Partner

Cundall

Sphere Las Vegas

"I could speak to all the features you can pack in your product, survey-ability, tolerance and geometry setting strength, optimized flow for weight reduction etc. The immersive surface would not have been possible without your product - period end of story."

Chris Edwards

Structural Steel Superintendent

W&W Steel Erectors