The NESCO Model 521 is a 1/2" two-hole galvanised steel EMT strap built for professional electricians and contractors who need a reliable, long-lasting conduit support solution. Engineered from hot-dip galvanised steel, this strap delivers superior corrosion resistance for both indoor and outdoor installations — from commercial panel runs to residential rough-in work. The two-hole mounting pattern distributes load evenly, keeping conduit firmly secured to framing, concrete, or structural steel even in high-vibration environments. Available in bulk pack quantities, the Model 521 is a job-site staple that keeps your conduit runs clean, code-compliant, and inspection-ready.

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