It is not designed for that application.
Hello Murph, This item is sold as a 1 1/4 in nail with the washer included. You can partner with your local store to special order a 1/2 in nail. We appreciate your business and look forward to serving you in the future. Thank you for shopping with The Home Depot.
Hi Josh, thanks for reaching out! The nail you have selected is only to apply the paper. To secure the shingles to the roof you would need https://www.homedepot.com/p/Grip-Rite-12-x-1-in-Plastic-Round-Cap-Roofing-Nail-3-000-Pack-GCB1/100111688?MERCH=REC-_-pipsem-_-202308499-_-100111688-_-N&