MIDWEST FASTENER CORP 05617 Hex Nut 3/8"-16 Steel Hot Dipped Galvanized 100 PK

MIDWEST FASTENER 05617 Hex Nut 3/8"-16

These hex nuts secure the threaded portion of machine screws and bolts in automotive and general hardware applications. The hot-dipped galvanized steel coating provides corrosion resistance for outdoor or damp environments. The 100-count pack suits maintenance shops, fleet garages and DIY builders who need a ready supply of standard fasteners. Buyers who require metric threads or finer pitch fasteners will not find a match here.

Thread specification 3/8"-16

The single specification that decides fit is the 3/8"-16 unified coarse thread. Each nut matches bolts or studs with that exact diameter and pitch. Hot-dipped galvanizing adds a thicker zinc layer than electro-plating, so the nut dimensions run slightly larger; verify clearance on precision assemblies. No other thread size or pitch is included in this package.

Installation and common issues

Spin the nut onto the bolt by hand until snug, then tighten with a standard wrench or socket. Over-tightening can strip the coarse threads, especially on softer bolt grades. Galvanizing buildup on the threads may require a tap or extra force to start; forcing a misaligned nut cross-threads the fastener. The pack contains 100 pieces, so a few defective threads will not halt a job.