Type 302 Slotted Self-Tapping Threaded Inserts
Type 302 slotted self-tapping threaded inserts are helical fasteners that install like a screw yet leave behind a durable female thread. Each insert has a slotted, cutting leading edge that acts as a tap; as it is driven into a drilled or molded hole in plastic, aluminum, magnesium, hardwood or composite, it removes just enough material to cut a precise mating thread. This removes the pre-tapping step entirely, shortening assembly and avoiding the weakness of a thread formed in a very soft substrate.
The Grade 302 stainless-steel body then provides a wear-resistant, corrosion-capable internal thread that can be reused through many assembly cycles without stripping. The outcome is a strong, repeatable threaded point in materials that would otherwise strip or degrade under load, making these inserts a practical upgrade over a plain tapped hole in any soft substrate.
By forming the thread in stainless steel rather than in the soft substrate, the insert turns a weak molded or cast boss into a durable, reusable female thread.
Versatile for reinforcing and repairing threads in low-shear materials, these inserts secure interior trim and lightweight engine parts in automotive, integrate reliable threads in plastic enclosures and terminal blocks for electronics and electrical, and provide heavy-duty, reusable connections in wood and fiberboard furniture. They are the dependable answer for thread hardening in soft substrates.
From automotive trim and engine parts to plastic enclosures, terminal blocks and furniture, it hardens threads wherever the substrate is too soft to tap.
