10-100pcs Aluminum Core Expansion Rivets Hammer Expansion Nail Head Punching Self-tapping Screw Fastener Parts

Material: Aluminum alloy. Category: Screws. Size: inner diameter 5x7mm/inner diameter 5x9mm/inner diameter 5x11mm. How to use: Knock on the upper part, the lower part will expand after knocking. Applicable: furniture, cabinets, doors and windows, concrete, wood, etc. Hello Welcome to our store!. Follow our store and you will enjoy more discounts. After placing the order, we will ship the goods within 24 hours and the package will be delivered within 7-15 days. Please read the product details carefully before placing an order. If you have any questions during the shopping process, please feel free to communicate with us via chat. Product Description: About this item: High-quality aluminum structure]: Our expansion rivets are made of advanced aluminum alloy, which is strong and durable. Their superior structure ensures that they can withstand the harshest conditions, and compared with traditional screws, they have a longer service life and will not loosen over time. Unique expansion desi