These Hoteche open-type blind rivets are built with a durable aluminum alloy body, offering reliable fastening strength for metalworking, automotive repairs, construction projects, and general DIY use. Sized at 3/16" x 1/2" (4.8 x 12.7mm), they are ideal for applications where access is limited to only one side of the material. Each pack contains 50 rivets, making it perfect for workshops, home repairs, and professional jobs.