Classic Fasteners

Threaded Inserts and Bushings for Plastics

Classic Fasteners will help you engineer, source, stock and ship the correct threaded insert for your manufacturing needs. Classic Fasteners has established relationships with qualified manufacturers both domestically and overseas which enables us to be quality driven, cost competitive and timely in turning quotes into production parts. It also allows us to work with our vendors to meet the zero PPM levels in our business.

Classic Fasteners specializes in offering threaded inserts in Brass, Aluminum, 12L14 Steel, 1215 Steel and 300 Series Austenitic Stainless Steel.

Classic Fasteners offers threaded inserts in Nickel Plating, Zinc Plating and Black Zinc Plating.

Classic Fasteners offers threaded inserts with Diamond Knurling, Straight Knurling, Helical Knurling and Special Knurlings.

Classic Fasteners offers Press-In Inserts, Self-Tapping Inserts, Heat – Ultrasonic Inserts and Molded-In Inserts.


These inserts are designed to be pressed into a pre-drilled hole in the plastic material. Press-In inserts have a reusable thread that meet your tightening torque requirements and are best used in softer plastics.

Self-Tapping Inserts form their own threads into the molded plastic and are often used where a strong and secure fit is needed, such as in cars or electronics.

These inserts are installed by heating and softening the plastic machined part, allowing for the insert to be pressed in and permanently bonded. This creates a strong, permanent connection point that can withstand even the harshest conditions. Heat and ultrasonic inserts are used in automotive, aerospace and medical applications. These are available in long and short variations.

These inserts are placed within the cavity and designed to have plastic flow around the insert to fill into the knurling. This creates a strong and permanent connection point built into the part itself. Molded-in inserts are used in automotive, aerospace and consumer products.

Classic Fasteners LLC is happy to offer our customers threaded plastic inserts that meet their needs for their specific application.

We are your one-stop source for all your screw and Fastener needs. Contact our Classic Fasteners team today to learn how we can help you and your team source the high-quality products you need with the customer service you deserve.

Barrel Nuts

Ideal for use in furniture or cabinetry, these nuts feature a barrel-shaped design that allows them to be inserted into pre-drilled holes.

Acorn Nuts

These nuts feature a rounded top that covers the end of a bolt or screw, providing protection and a decorative finish.