Specification: Name: imperial colour zinc flat head post thread rivet nut set Material: carbon steel Surface treatment: zinc plated, yellow Rivet nut set: 30pcs #6-32 30pcs #8-32 30pcs #10-24 20 pcs 1/4-20 10 pcs 5/16-18 8pcs 3/8-16 Total: 128 pcs. (Comes with plastic organiser for storage) Features: Designed for simple use, these flat head threaded rivets are perfect for DIY, mechanical and automotive work. They are widely used in automotive, furniture, decorative, electrical and industrial products. The kit is safely stored in a clear box with compartments for easy carrying.