Metal frame anchors are widely used for mechanical anchoring of heavy concrete loads，strong corrosive environments and special requirements for fire prevention and earthquake resistance. It secures both door and window frames to most building materials. They are quick and easy to install with the steel sleeve providing strength and durability. The countersunk head allows for a flush fitting. Used for commercial glazing and metal window and door frame installation. Sizes: Metric sizes range from M8-M10. Package Type: carton or bag and pallet. Payment terms: T/T, L/C. Delivery Time: 30 days for one container. Trade Term: EXW, FOB, CIF, CFR.