<h2>Essential <span style="text-decoration:underline">CAD Models</span> for Engineers & Designers.</h2>

    Essential CAD Models for Engineers & Designers.

    High-accuracy 3D models built to real-world standards. Ready for design, manufacturing, and 3D printing.

    Explore Our Categories

    3D Printed Socket Head Cap Screw and Nut

      Most Sold Product This Week

      1/4-20 UNC Socket Head Cap Screw CAD Model – 3D STEP, IGES, STL,DWG,DXF Download | ASME B18.3

      • Instant download

        Browse our ready-made CAD model library and download files instantly after purchase.

        ✔ Manufacturing-ready
        ✔ Immediate access after payment
        ✔STEP l IGES l SAT l STL l 3MF l DXF l DWG l PDF

      • Customize Listed Model

        Need a size change or minor modification? Add customization to your cart and share your requirements.

        ✔ Select the CAD model
        ✔ Add Customization Service to cart
        ✔ Enter details in the order notes / form

      • Fully New Custom Design

        Have a unique idea or technical drawing? We design CAD models based on your exact requirements.

        Please use the contact form to request a quote or live chat with us.

        Need a different size? We offer custom modifications.

        We provide professional custom CAD modeling based on your technical requirements.

        Email us: info@prepcad.com
        Call us: +1 409-302-2539
        Or fill in our contact form

        © 2026 prepcad LLC, .

          • American Express
          • Apple Pay
          • Diners Club
          • Discover
          • Google Pay
          • Mastercard
          • PayPal
          • Shop Pay
          • Visa

          Login

          Forgot your password?

          Don't have an account yet?
          Create account