[10000 BULK] Thread Rolling Screws Slotted Indented Hex Washer Head Steel Zinc & Waxed Tri-Lobe 4-40 X 3/8 Taptite Screws Alternative While Supplies Last

Thread Rolling Screws Slotted Indented Hex Washer Head in Steel Zinc & Waxed Tri-Lobe #4-40 X 3/8 — a high-performance Taptite screws alternative designed for secure, durable assemblies.

Engineered for forming threads as they drive, these screws deliver strong holding power in thin metals and precision enclosures while minimizing risk of thread damage.

Key advantages

Thread-rolling design: forms threads in the substrate for greater pull-out resistance without pre-tapping.

Slotted Indented Hex Washer Head: low-profile seating with a reliable load-bearing surface.

Tri-Lobe drive: enhanced torque transfer and reduced cam-out for easier installation.

Material & finish: steel with zinc plating and a waxed coating for corrosion resistance and smooth driving.

Size: #4-40 thread, 3/8 inch length.

Alternative to Taptite screws: suitable replacement in compatible assemblies.

Applications

Ideal for lightweight metal assemblies, enclosures, electrical housings, and other projects where forming threads is advantageous. Use these screws when you need strong, repeatable clamping with reduced risk of threading damage in moderately soft metals and compatible plastics.

Specifications

Diameter: #4-40

Length: 3/8 in

Head style: Slotted Indented Hex Washer Head

Drive: Tri-Lobe

Material: Steel

Finish: Zinc plating with waxed coating

Type: Thread rolling self-tapping screw