12.9 강도
2mmx5mm Gold Plated Steel Hex. Socket Head Screws（8pcs.）
2mmx6mm Gold Plated Steel Hex. Socket Head Screws（8pcs.）
2mmx8mm Gold Plated Steel Hex. Socket Head Screws（8pcs.）
2mmx10mm Gold Plated Steel Hex. Socket Head Screws（5pcs.）