NATEE 165pcs Self-Locking Nut Riveting Feature - Rivet Nut Kit/Installation Tool: Manual/Pneumatic Type Available. Perfect for professional and private use. - Built-in function. The screw riveting machines often have a built-in function, such as B. a slot that facilitates tightening of the fastener. - High quality for durable and long-lasting use. Lightweight for portable installation. Specifications Material: Stainless Steel 304 Color: Silver Size: M3, M4, M5, M6, M8, M10 Type: Lug Nuts Flat Head for Rivets Quantity; Item: 165 pieces Condition: brand new Package includes 50M3 Rivet Nut 50M4 Rivet Nut 30M5 Rivet Nut 20M6 Rivet Nut 10M8 Rivet Nut 5M10 Rivet Nut