The 3/8 - 16 Inch Nylon Insert Lock Nut Set by POWERTEC. 

This premium (50) pack collection of hex lock nuts was designed for an assortment of indoor and outdoor applications. They are best utilized when paired with externally threaded components that measure 3/8 inch and that have 16 threads per inch, such as common bolts and studs. They are threaded, and meant to work seamlessly with your items, offering a smooth application without jamming or binding on the bolt, causing damage (like some lesser quality brands). 
These cost effective lock nuts are made with 18-8 304 stainless steel, delivering an optimal level of chemical, rust and corrosion resistance - making them ideal for fresh and salt water applications. Their strong construction also provides you with a reliable fastener that outperforms zinc plated versions, and last much longer under the toughest conditions. 
Order these nylon insert lock nuts today and see what the professionals are ranting and raving about. 

INCLUDES: (50pc) Pack of 3/8" x 16 Lock Nuts
  • APPLICATIONS: These stainless lock nuts are for use with an externally threaded components (like bolts and studs) that measure 3/8 inch and has 16 threads per inch.
  • HEAVY DUTY DESIGN: Commonly used hex lock nuts constructed out of stainless steel grade 18-8 for long term durability, and is designed to outperform similar sized zinc plated fasteners, while flaunting superior rust and corrosion resistance.
  • SECURE CONNECTION: Internal nylon insert protects against turning, and experience a reduction in loosening when under high vibration and torque.
  • OPTIMAL PERFORMANCE: Stays in great shape under tough conditions and rough environments, without the need to perform time consuming maintenance.
Specs 
  • Diameter: 3/8" 
  • Inside Diameter Thread Size: 16 Threads per Inch 
  • Material: 18-8 (304) Stainless Steel 
  • Quantity: 50 Pack 

POWERTEC is a leading manufacturer of high quality woodworking tools and accessories, machines, and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest Innovations, technology, and product development to the industry.