Drop in anchors are used in solid concretes to suspend electrical cable trays, HVAC ductwork and fire sprinkler pipes and heads. We have inhouse production of all sizes upto 5/8 inches or M16. We can accomodate any special design requirements as well in case of bulk quantity. Manufacturing capability: Available in both metric and BSW/UNC thread sizes. Available in standard lengths Available in Carbon steel as well as A4 (SS 316) Finish available - Zinc electroplated - min. 5 microns