Steel City 1-1/4" EMT One Hole Snap Strap, Steel

That is exactly what it is sized for. The TS 104 is a 1-1/4 inch EMT one hole strap, so it matches the outside diameter of 1-1/4 trade size EMT. It will not hold rigid or IMC of the same trade size correctly, since those have a larger OD than EMT, and it is not sized for PVC conduit.

The Steel City TS 104 is a one hole snap strap sized for 1-1/4 inch EMT in zinc plated steel, so it is matched to thin wall metallic tubing rather than rigid nonmetallic conduit. For PVC runs, the Cantex 5133 series is a one hole PVC conduit strap, and the Kraloy PS20 is a two hole PVC pipe strap for 2 inch. Those PVC straps match the outside diameter and material movement of plastic conduit, which is why PVC runs are usually strapped with PVC rather than an EMT steel strap.

The snap style strap clips over the EMT and holds it in place, so you can run the conduit, snap the straps on, and then come back and fasten each one with a single screw through the hole. It saves the third hand on overhead and wall runs. The screw or anchor is not part of the strap, so pick the fastener for your substrate.

Not interchangeably. The Steel City TS 104 is a one hole strap, secured with a single fastener, while the Kraloy PS20 is a two hole pipe strap that takes a fastener on each side of the conduit. A two hole strap resists rotation and twist on the raceway, so if the drawing calls out two hole support you need a two hole part rather than a single fastener snap strap.

No. The Briscon SC series is an aluminum one hole fold over strap made for SE cable, where the fold over design closes around a flat or oval cable jacket. The Steel City TS 104 is a steel conduit strap sized to the round outside diameter of 1-1/4 inch EMT. Using a cable strap on tubing, or a conduit strap on SE cable, leaves the run loose because the two profiles are different.

The Steel City TS 104 is sized for 1-1/4 inch EMT and will not close on a larger raceway. For 2 inch work, the Kraloy PS20 is a 2 inch two hole pipe strap for PVC, and the Cantex 5133 series covers PVC up to 4 inch. For 2 inch EMT you would step up within the same Steel City strap family rather than force the 1-1/4 inch body.

The selling unit is each. Two ordering options exist: TS 104 in standard packaging and TS104-1 packed 1/each. Buy to your takeoff count, since large conduit runs chew through straps quickly.

No fasteners are included. The strap has a single mounting hole and you supply the screw, toggle, or concrete anchor suited to the surface you are fastening to. Plan on one fastener per strap when you count material.