️【HIGH QUALITY MATERIAL】Grub Screws Kit Made of High Quality 304 Stainless Steel, grub screws which Features is Strength and Offers Good Corrosion Resistance in Bad Environment and High Humidity Areas. ️ 【VARIOUS SIZES】381PCS Set Screws included M2.5 M3 M4 M5 M6 M8 Hex Allen Head Socket Set Screw and 6 PCS Free Allen Wrench Drives. Hex head set screws Conform to the Standardized Metric System, with an Error Less than 0.01mm. Compact and Force Uniform Screw Thread is Not Easy to Out of Shape and Slid in the Process of Rolling and Installation. ️ 【SAFETY & ECO-FRIENDLY】M2.5 M3 M4 M5 M6 M8 grub screw Adopt High Quality 304 Stainless Steel Material, which is Environmental Protection and Mercury-free & Toxic-free. No Toxic Substances Releasing, which will Ensure your Safety. They have Superior Rust Resistance and the Excellent of Oxidation Resistance, which Can Ensure Long Time Using. ️ 【HANDY BOX】This Set Screw Kit Organized by a Durable and Sturdy Case, which is Easy to Get the Bolts you Need and Convenient to Put Off your Tiny Parts. Vlookee Internal Hex Drive Grub Screw Assortment Kit Quantity: 381pcs Allen Head Socket Set Screw M2.5: 25 × 4mm 、25 × 5mm M3: 25 × 3mm 、25 × 4mm、 25 × 10mm M4: 25 × 4mm 、25 × 6mm、 25 × 8mm M5: 25 × 5mm 、25 × 8mm 、25 × 10mm M6: 25 × 6mm、 25 × 8mm M8: 25 × 8mm 、25 × 12mm M2.5/M3/M4/M5/M6/M8 ×Hex key wrench 1 × tweezers 1 × Storage Box