... steel 3.color: yellow zinc plated 4.long hole yellow zinc plated sleeve anchor (M6.5-20)Description1.size:standard2.material: carbon ... diameter:6.5mm,8mm,10mm,12mm,16mm,20mm,24mm; working length from 25mm to 300mmb)American system:Outer diameter:1/4,5/16 ... ,3/8,1/2,5/8,3/4,"1"; working length from1-3/8 to 6-1/4Application1. Sleeve ...