For roofing applications, the Spike is a one-piece, vibration resistant anchor available for use in fastening insulation, single-ply membrane wood and metal to structural concrete roof decks. Suitable base materials include normal-weight concrete and concrete masonry.
To install: drill a hole into the base material to the depth of at least 1/2" deeper than the embedment required. Blow the hole clean of dust and other materials. Drive the anchor thru the plate until the head is firmly seated.
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+fixture clearance hole.