Standard 16mm drop-in anchors are one-piece, internally threaded expansion anchor designed for use in solid base materials such as concrete. Material: Zinc plated carbon steel The anchor is set by displacing the pre-assembled expander cone, which allows the anchor body to fully expand and grip the surrounding material.Important: Ensure that the correct size setting tool is used in conjunction with the corresponding drop-in anchor size. The internal thread is designed to suit M12 bolts or threaded rod. Features• Allows for concealed fixing of partially countersunk anchors, ideal for temporary applications• Suitable for use in both cracked and non-cracked concrete, as well as other solid base materials with high compressive strength• Metric internal thread compatible with M12 bolts and threaded rods• Suitable for securing the Core Drill Block to concrete surfaces, also effective in Angle Block applications