[500 BULK] Thread Rolling Screws Unslotted Indented Serrated Hex Washer Head Steel Zinc & Waxed Tri-Lobe 3/8-16 X 1-1/2 Taptite Screws Alternative

Engineered for high-strength, vibration-resistant fastening in metal-to-metal assemblies, these Thread Rolling Screws provide a robust alternative to standard Taptite screws. The unslotted indented serrated hex washer head ensures flush seating and secure torque transfer, while the Tri-Lobe drive offers tamper-resistant engagement and minimizes cam-out during installation.

Made from steel with a zinc finish and waxed for lubrication, they deliver smooth driving and long-lasting performance in demanding environments. Size: 3/8-16 UNC, Length: 1-1/2 in.

Key Features

• Thread rolling (thread-forming) design forms strong, durable threads in metal substrates without pre-tapping.
• Unslotted Indented Serrated Hex Washer Head ensures flush seating and excellent torque transfer with a secure seal.
• Tri-Lobe drive provides secure, tamper-resistant engagement and reduced cam-out.
• Steel with zinc finish offers corrosion resistance and long-lasting performance; waxed for smoother driving and lubrication.
• Size: 3/8-16 UNC; Length: 1-1/2 in for mid-length fastening jobs.

Applications

• Metal-to-metal assemblies, enclosures, and control panels
• Sheet metal, chassis, and electrical enclosures
• Automotive and appliance mounting where secure, flush fastening is required
• Any project needing a Taptite-screws alternative with strong threads and easy installation

Why choose these thread rolling screws?

They combine strong holding power with efficient installation, reducing the need for pre-tapping and delivering reliable performance in challenging environments. Whether you’re assembling machinery, electronics housings, or metal enclosures, these screws provide a durable, secure solution that resists loosening and maintains a clean, professional appearance.