The reusable Simpson Strong-Tie® AnchorMate anchor bolt holder is designed to hold the anchor in place before the concrete pour, as required in some jurisdictions. The gripping section secures the bolt in place without a nut for quicker setup and teardown. It also protects the threads from wet concrete and simplifies trowel finishing. AnchorMate® 1/2-in. Dia. Anchor Bolt Holder — Yellow (100-Qty) (Pack of 6000).