MIDWEST FASTENER CORP 3674 Hex Nut 1/2"-13 Grade 2 Zinc 50pk

Steel Hex Nuts for Machine Screws

These Grade 2 zinc-plated steel hex nuts secure the threaded portion of machine screws and bolts in general-purpose fastening tasks. The 50-piece pack supplies enough hardware for multiple assemblies or maintenance jobs. They suit workshops, job sites and home repairs where a reliable mechanical joint is required. The zinc finish provides basic corrosion resistance for indoor and dry outdoor use.

Grade 2 Zinc-Plated Construction

Grade 2 steel delivers standard proof load and tensile strength for non-critical structural connections. The zinc plating adds a sacrificial layer that slows surface rust on the threads and bearing faces. Each nut carries a unified coarse 13 threads-per-inch pitch that matches common 1/2" bolts and threaded rod. The hex profile allows tightening with standard open-end or box wrenches and socket tools.

Coarse-Thread Compatibility Limits

The unified coarse 13 threads-per-inch series will not engage fine-thread or metric counterparts, so mating parts must share the same thread standard. Grade 2 rated strength is not intended for high-stress, vibration-heavy or safety-critical joints where a higher property class is specified. Buyers who need greater clamp load, finer pitch or stainless corrosion resistance should select a different grade or material.