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Red Head Dynabolt Hex Nut 3/8 X 3 Inch Sleeve Anchor feature a split expansion sleeve over a threaded stud bolt body and integral expander, nut and washer. The anchor diameter equals hole diameter, with 1/4 - 3/4 inch diameter anchors available, up to 6-1/4 inch length. The sleeve design improves holding power. These sleeve anchors provides full 360 degree hole contact over large area and reduces concrete stress, with a heavy-loading capacity. They are preassembled for faster, easier installations and can be installed through object to be fastened. No pre-spotting of holes necessary. The anchors are zinc plated and should be installed with carbide tipped hammer drill bits. Available in hex head and six other head styles. Specs: Anchor Diameter and Drill Bit Size - 3/8 inch; Effective Anchor Length - 3 inch; Bolt Diameter - 5/16 inch; Threads per Inch - 18; Min. Embedment - 1-1/2-Inch inch; Max. Thickness of Material to be Fastened - 1-1/2-Inch inch.
Gilberto Rangel
2025-04-13 18:59:50
Works like a charm, use the 3/8 mason bit with a hammer drill into the mortar, nice tight fit, hammer drill is key
Steve
2024-11-29 11:17:00
Great way for fastening to CC and have been using these for meany years
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