After-sales service:If you have any questions after receiving the product,please feel free to contact us. Specification: M6 * 100 (bolt diameter 6MM, screw length 100MM) Quantity: 5PCS Made of 304 stainless steel, it is durable and can be used outdoors. It has better rust resistance (Can be used in humid environment or in water and will not rust 5Pcs Expansion Anchor Bolts for M6,Eye Shield Bolts Expansion Screw Bolts,Heavy Duty Sleeve Anchors Ring Lifting Eyebolts with Closed Hooks for Concrete Wall Fixings 60MM Blue Hawk 4-Pack 0.375-in Heavy-Duty Lag Shield Sleeve Anchor with M6 Eye Shield Bolts 60mm Concrete Wall Fixing Heavy Duty M10x115mm Expansion Eye Bolts Shield Anchor Eye Bolts Super Heavy Duty – Fixings Direct M6 Concrete Anchors With Hooks not easy to rust,wear- resistant,can be use for long term in indoor and outdoor. 5pcs M6*60mm Expansion Bolts Hex Head Screw Carbon Steel Concrete Sleeve Anchor Galvanized Bolt Pull Explosion Screw Material:Our hollow wall anchor is made of great carbon steel. WIDELY USED:These expansion eye bolts can be securely fixed on concrete,brick and other walls.