Features:* * Made of material, and practical to use* Riveting should be carried out with rivets with a special tool. This rivet is particularly suitable for riveting where ordinary rivets (which must be riveted on both sides) should not be used. Suitable for construction, automobiles, ships, aircraft, machinery, electrical appliances, furniture and other products.* partition, the cabinet consists of 8 partitions: standard flange 3.2x8mm, standard flange 4.0x10mm, standard flange 4.8x14mm, large flange 3.2x10mm, large flange 4.0x10mm, 4.0x14mmLarge fLange, large flange 4.8x14mm, large flange 4.8x18mm.* POP-rivets (blind holes) are made of aluminum, which ensures that two pieces of material are joined quickly and efficiently. The rivet nut and mandrel are made of aluminum. The special treatment of the rivets ensures that the mandrel is wrapped in the rivet application process. Specification:* Material: Aluminum* Working Temperature: -20 - +500 Celsius Degree * Fastener Type: Blind Multi-grip POP-Rivet-Color * Material/Grade: All Aluminum Alloy * Color: Black (As Pictures Show)* Quantity: 200Package Contents:Standard Flanges 25*3.2x8mmStandard Flanges 25*4.0x10mmStandard Flanges 25*4.8x14mm25*3.2x10mm Large Flanges25*4.0x10mm Large Flanges25*4.0x14mm Large Flanges25*4.8x14mm Large FlangesNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.