... of OriginGuangdong, China (Mainland) Brand NameEG Model NumberDrop In Anchor TypeDrop-in Anchor Materialsteel, stainless steel DiameterM6-M20; W1/4-W3/4 ... platedYellow plated ,white2.Application:1-1. Base material of concrete,hard natureal stone.2-2. For fastening mediun loads,for example ... ,brackets etc.3.Features:1-1. A short anchor,thus a shallow hole,high holding power.2-2. Set flush with surface ...