Midwest Fasteners Grade 2 Zinc Plated Steel Coarse Thread Nylon Insert Lock Nut

Midwest Fasteners Grade 2 Zinc Plated Steel Coarse Thread Nylon Insert Lock Nut

The Midwest Fasteners Nylon Insert Lock Nut is a Grade 2 steel lock nut finished in zinc, built with coarse thread for standard bolt and screw engagement. This nut family spans sizes from #6-32 and #8-32 up through 7/16"-14, 9/16"-12, 7/8"-9 and 1"-8, so shops and maintenance techs can pull the exact coarse-thread size needed for a job without special ordering. Every size shares the same Grade 2 steel construction, zinc finish and nylon insert locking collar, giving a consistent silver appearance and dependable locking function across the full size range.

Key Features

• Size Range: Available in #6-32, #8-32, 7/16"-14, 9/16"-12, 7/8"-9 and 1"-8 to match a wide range of coarse-thread bolts and screws.
• Thread: Coarse thread for quick, standard engagement with compatible bolts and screws.
• Material & Finish: Steel construction with a zinc finish for corrosion resistance and a clean silver appearance.
• Grade: Grade 2 steel for general-purpose fastening strength.
• Type: Nylon insert lock nut design; the nylon collar creates friction against the bolt threads to resist vibration loosening.
• Color: Silver zinc finish matches most coarse-thread Grade 2 and Grade 5 fastener hardware.
• Country of Origin: Manufactured in China.

Technical Specifications

• Wire Size: #6-32 - 1"-8

Typical Applications

• General machinery and equipment assembly where vibration can loosen standard hex nuts.
• Maintenance and repair work on fixtures, brackets and mounts using coarse-thread bolts.
• Fabrication and shop assembly tasks requiring a self-locking nut without a separate lock washer.
• Pairing with Grade 2 or Grade 5 coarse-thread bolts and cap screws in general fastening applications.
• Stocking multiple sizes from small #6-32 and #8-32 fasteners up to larger 7/8"-9 and 1"-8 hardware for varied project needs.

Why Midwest Fasteners?

Midwest Fasteners supplies steel coarse-thread hardware built to consistent sizing, material and finish standards so contractors and maintenance techs can count on a reliable fit every time, across the full #6-32 through 1"-8 size range. This Grade 2 zinc-plated nylon insert lock nut family reflects that same focus on dependable, straightforward fastening hardware for professional and DIY jobs alike.