Simple Bolted Splices
Introducing a revolutionary — and dead simple — system for making field-bolted HSS splices. No complicated one-sided fasteners or field welding required. With Shuriken, all that’s required is a fast installation in the shop and standard A325 or A490 bolts in the field.
Shuriken is a disposable wrench that holds a nut in place on the interior of an HSS member, allowing bolts to be installed and tightened from the exterior in the field. Shuriken is rugged enough to resist the torque from pretensioned bolt installation and flexible enough to preserve erection tolerances. Just mount Shuriken in the shop, and bolt in the field. It’s that easy.Watch the video
HSS have always offered high strength-to-weight ratios, exceptional torsional resistance and an aesthetically pleasing appearance, but complicated connections can keep builders and designers away. With Shuriken, connections are as clean and efficient as HSS themselves.
In recent years, increasing yield strength and the introduction of the ASTM A1085 material specification have made HSS more efficient and economical than ever.
But without a way to make efficient HSS connections, those advantages had to be weighed against the added labor and cost that comes with field welds and one-sided fasteners.
Shuriken solves that problem, dramatically reducing the time, effort and expense needed to get clean HSS splices.
With Shuriken, builders can unlock the full structural possibilities of HSS without losing efficiency savings on connection solutions that cost more or require more labor.
Together, HSS and Shuriken have the potential to open up new possibilities in structural steel construction. And all Atlas Tube HSS — from our smallest tubes to our largest Jumbo sizes — are rolled here in North America, so you can count on the high quality and fast turnaround you expect from domestic steel.
Shuriken has several advantages over existing one-sided connectors:
Right in your Steel Construction Manual. Shuriken is not a fastener and carries no load. Rather, it’s a disposable wrench that lets the bolt do all the work. A bolt tightened with Shuriken acts just like a bolt tightened the old-fashioned way.
Shuriken is currently available in 3/4” and 7/8” sizes. Larger sizes are in development with the 1″ version expected to launch in late 2022.
Tack welding of nuts is occasionally seen in practice but has three major drawbacks:
Yes! We are happy to accommodate purchases from just about anywhere. Please contact us prior to ordering to arrange payment and shipping.
If you’d like a sample or want to learn more about how Shuriken can help you find big efficiencies and open up new possibilities on your next steel construction project, get in touch with one of our steel engineers.