![A Perma Cover #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screw, Self-Drilling - 250 Pack is shown, ensuring secure fastening. Above the screw is the head of a similar screw, displaying the markings "ZK." The background is white, with a small grey rectangle in the bottom left corner.](http://mrcooldiydirect.com/cdn/shop/files/14x7.8ZXLStitchLap-Zinc.jpg?v=1718105443&width=1445)
![A #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screw, Self-Drilling from Perma Cover with a shiny silver body and a white hexagonal head. The screw appears to have a washer near the head for secure fastening. An identical screw head is shown next to it.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-White.jpg?v=1718105443&width=1445)
![A Perma Cover #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screw, Self-Drilling - 250 Pack with a beige hexagonal ZXL Dome Cap Head and washer. The screw is shown at an angle, with a separate close-up of the head visible above it. Additionally, a rectangular beige color swatch is displayed in the bottom left corner, ensuring secure fastening.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-Lightstone.jpg?v=1718105443&width=1445)
![A beige hex washer head self-tapping screw with a sealing washer is shown. The image includes a close-up of the #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack and a rectangular swatch displaying the beige color. Designed for secure fastening, this partially threaded screw with a pointed end ensures efficient installation.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-SaharaTan.jpg?v=1718105443&width=1445)
![A Perma Cover #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screw with a gray cap and matching panel ensures secure fastening. It features a built-in washer, threaded shaft, and drilling tip at the end.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-AshGray.jpg?v=1718105443&width=1445)
![An image of a Perma Cover #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack with a hexagonal head and attached washer, designed for secure fastening, next to a matching gray ZXL Dome Cap Head. A rectangular sample of the gray color is also shown below the screw and cap.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-CharcoalGray.jpg?v=1718105443&width=1445)
![A close-up image of a hex head self-drilling screw with a washer and seal. The screw is metallic with a beige hexagonal head, washer, and seal. The bottom portion is a drill bit tip, and a #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack by Perma Cover along with a color sample are displayed alongside the screw for secure fastening.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-BurnishedSlate.jpg?v=1718105443&width=1445)
![Close-up image of a Perma Cover #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screw, Self-Drilling - 250 Pack. The screw, ideal for secure fastening, features a shiny metallic thread. Also displayed are a brown cap that fits over the head of the screw and a rectangular brown color sample matching the screw head.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-Brown.jpg?v=1718105443&width=1445)
![An image of Perma Cover's #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack with a black hexagonal head and metal threads. The screw, ideal for secure fastening, is positioned diagonally, with an additional close-up view of the head displayed in the top right corner.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-Black.jpg?v=1718105443&width=1445)
![A close-up image of a red Perma Cover #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack with a matching red rubber washer and hex head cover. The screw has a metallic thread and a pointed tip at the end, ensuring secure fastening. A sample of the red color is displayed in a rectangular swatch below the screw.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-BarnRed.jpg?v=1718105443&width=1445)
![A #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screw from Perma Cover is shown, ideal for secure fastening. The screw features a sharp point for drilling. A separate loose washer lid and a rectangular red color sample matching the screw's coating are also displayed, highlighting the quality of these self-drilling metal screws.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-BrightRed.jpg?v=1718105443&width=1445)
![A self-drilling screw with a maroon hexagonal head and a metal threaded shaft is shown. Included are a swatch of maroon color and a close-up of the head, displaying a hexagonal imprint pattern. Ideal for secure fastening, this #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack by Perma Cover ensures reliability in your projects.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-Burgundy.jpg?v=1718105443&width=1445)
![A green #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack by Perma Cover with a hexagonal head and sealing washer, perfect for secure fastening, is shown. The image includes a top view circle of the head, a side view of the screw, and a rectangular color swatch matching the ZXL Dome Cap Head.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-ForestGreen.jpg?v=1718105443&width=1445)
![A close-up image of a green hex head self-drilling screw with washer. The screw's sharp point is visible. An additional perspective of the head and a rectangular color swatch matching the screw's head are shown separately, highlighting its secure fastening properties ideal for #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack by Perma Cover applications.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-Evergreen.jpg?v=1718105443&width=1445)
![An image showing a blue hex head self-drilling screw with its washer. The head and washer are displayed separately next to the screw. There is also a blue rectangle color swatch placed near the screw components, highlighting secure fastening for various applications using Perma Cover #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-RegalBlue.jpg?v=1718105443&width=1445)
![A close-up view of a blue hex washer head self-drilling screw with serrations on the threads, perfect for secure fastening. An identical head is shown separately above it. A solid blue color square is displayed below the screw to highlight its design. The product shown is the Perma Cover #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, Self-Drilling - 250 Pack.](http://mrcooldiydirect.com/cdn/shop/files/14x7-8ZXLStitchLap-HawaiianBlue.jpg?v=1718105443&width=1445)
![A #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screw, Self-Drilling - 250 Pack by Perma Cover with a bronze-colored hexagonal head is shown. A close-up of the top of the screw head and a rectangle of the same bronze color are also displayed next to it, ensuring secure fastening.](http://mrcooldiydirect.com/cdn/shop/files/14x7.8ZXLStitchLap-Copper.jpg?v=1718105443&width=1445)
![](http://mrcooldiydirect.com/cdn/shop/files/female-customer-support-operator-headset-600nw-102124561.webp?v=1710218479)
Have questions or need help selecting the perfect Mini Split system?
Talk with our expert HVAC team members now for assistance!!
PRODUCT DESCRIPTION
PRODUCT DESCRIPTION
-
Optimize your metal building projects with our #14 x 7/8" Stitch Lap ZXL Dome Cap Metal Building Screws, designed for metal-to-metal applications. These self-drilling screws are ideal for attaching metal roof and sidewall panels together, ensuring a secure and reliable hold. Key features include:
- Self-Drilling 7/8" Stitch Lap Metal Building Screws: No need for pre-drilling. The self-drilling tip easily penetrates steel up to .210" thickness with no 'point-walking,' ensuring precise and effortless installation.
- Secure Fastening: Stitch lap screws will securely fasten two layers of up to 18 gauge thickness with no strip-out, thanks to the tapered shaft that holds strong in the panel laps.
- ZXL Dome Cap Head: The 5/16" ZXL Dome Cap head completely encapsulates the washer, preventing UV damage and ensuring the screws last for years longer than industry-standard screws.
Multiple Colors
- Available in 17 different color options to match your specific project. Each bag contains 250 screws.
- Note: Actual screw color may differ due to varying monitor settings. We are happy to send a small sample for color matching. Please contact us to receive a color sample.
Easy to Install
- Designed for easy installation, suitable for anyone regardless of experience. Each order includes a free 5/16" Hex Driver.
- Advanced forging process technology ensures sharp drill edges that consistently cut the metal, eliminating slow or dropped screws and preventing pigtails that can embed themselves in the rubber washer.
All product prices include free Standard Shipping in the Lower 48 States.
As an authorized national dealer for PermaCover, MRCOOL DIY Direct offers high-quality metal air conditioning line set covers, made in America, for all types of residential and commercial HVAC needs.
Have a Question? We know our products and are happy to help!