Hilitchi full choice unstained Steel Hex Socket Flat Head holed Bolts Screw Nuts Kit Specifications : Drive Type : Hex Socket ; Head Style : Hex Socket Head Cap ; Material : 304 unstained Steel ; Main Color : Silver Tone ; Package Included : 30pcs M3 X 20 30pcs M3 X 16 30pcs M3 X 12 30pcs M3 X 8 100pcs M3 Nuts 20pcs M4 X 20 20pcs M4 X 16 25pcs M4 X 12 25pcs M4 X 8 80pcs M4 Nuts 15pcs M5 X 20 15pcs M5 X 16 15pcs M5 X 12 15pcs M5 X 8 60pcs M5 Nuts Package Quantity : 510pcs. Hex Socket and Nuts -LRB- + -2 % -RRB-. This set is by size in a thin storage case for area access and protection. untarnished Steel Material sunk Hex Socket Flat Head Key Bolts. sunk bolts is, undercoated, non-pollution and high-hardness. It is widely in commercial enterprise. Hilitchi is a athlete of fasteners. We steel, untarnished steel and brass screws, self tapping screws, self drilling screws, reformer wall screws, hex nuts, hex bolts, rivets, anchors, nails, pneumatic tire washers, spring washers, couplings and fixings.