Expansion Screw Anchor, Caulking Anchor, Lead/Zamac Alloy, Anchor Dia. 5/16 In., Anchor Internal Thread Dia. #8, Anchor Length 1/2 In., Screw Size 8-32, Internal Thread Size 8-32, Anchor Drill Size 5/16 In., Min. Embedment 1/2 In., Use With 30TC54,...