1. Self-tapping screws to prevent damage to delicate laptop parts during repair 2. Flat head machine screws to ensure a neat and even surface after installation 3. Countersunk screws, general maintenance of computer components such as hard drives, power supplies, graphics cards, motherboards, fans and cd-rom drives 4. 50 pcs of each size, 500 pcs in total in a convenient plastic box 5. Dimensions: 12.7x6.5x2 cm 6. Weight: around 100 g
