Made of stainless steel material, it is clean, environmentally friendly, recyclable, and earth-friendly. Part number: M4x30 Material: Stainless steel; Type: Machine screw; Nominal thread size: M4 Head shape: Countersunk head; Hole shape: Phillips head; Phillips head size: 2 Diameter: 7mm (head), 4mm (thread); Length: 30mm Actual product photos are from the 6th image onwards. Please be sure to check the photos as they may differ from the description. Please comment if you have any questions. Due to being a slightly damaged item, there may be crushed boxes, torn vinyl, signs of opening, fingerprints, etc. Due to a simple inspection, there is a possibility that signs of use or missing parts may be overlooked. We may not be able to meet the expectations of those seeking a perfect product. Amazon reference price: 749 yen Ships the same day (shipping method may be changed to the cheapest option) 100 yen discount for followers who comment to purchase Please check the profile before purchasing. Management number 20