ITEM NAME:440pcs M3 M4 M5 Alloy Steel Hex Socket Button Head Cap Bolts Screws Nuts Se A1C1 440pcs M3 M4 M5 Alloy Steel Hex Socket Button Head Cap Bolts Screws Nuts Se A1C1 Product Name: Button Head Screw Drive Type: Hex Socket Head Style: Button Head Thread Dia.: M3 M4 M5 Pitch: 0.5mm 0.7mm 0.8mm High Quality Alloy Steel Hex Socket Button Head Bolts Screws Nuts Kit. Provide with great acid and alkali resistance performance. Fixing component, industrial and construction fasteners. Great for home or workplace. Comes with a Sturdy Transparent Storage Case organized by size for quick access and protection. MATERIAL: alloy steel Package Quantity: 440Pcs (Include M3 M4 M5 Nuts) FEATURES: Hex Socket Button Head Bolts Screws and Nuts Kit with Storage Case APPLICATION: Great for home or workplace in many applications The Product details: (Quantity,Thread Diameter x Thread Length) 20pcs M3 X 8mm 20pcs M4 X 8mm 15pcs M5 X 8mm 20pcs M3 X 12mm 20pcs M4 X 12mm 15pcs M5 X 12mm 20pcs M3 X 16mm 20pcs M4 X 16mm 15pcs M5 X 16mm 20pcs M3 X 20mm 20pcs M4 X 20mm 15pcs M5 X 20mm 80pcs M3 Nuts 80pcs M4 Nuts 60pcs M5 Nuts Package Contents: 1 Set x 440pcs Screw and Nuts Combination Kits Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.