![]() Reference should be made to applicable codes for the specific working. A safety factor of 4:1 or 25% is generally accepted as a safe working load. Values shown are average ultimate values and are offered only as a guide and are not guaranteed. Ultimate Load Values in Medium Weight Block Size Ultimate Load Values in Light Weight Block Size Ultimate Load Values in 2000 PSI Concrete Size Reduced Capacity (Minimal Distance) (inches) ![]() To determine the maximum length required, add the thickness of the material to be fastened and the maximum embedment (1-3/4”).Īllowable Edge and Spacing Distances - in NORMAL WEIGHT CONCRETE ParameterĪllowable Edge and Spacing Distances - in BLOCK Parameterįull Capacity (Critical Distance) (inches) To determine the minimum length required, add the thickness of the material to be fastened and the minimum embedment (1”). Once all of these factors have been determined, you can find the expected holding values in the technical information below. Determinations must be made on the diameter of the screw - standard or large diameter, length of the screw - ranging from 1-1/4" to 6", head style - hex slotted or flat Phillips, material or coating - Blue Climaseal®, Zinc Plated Large Diameter, Envirex Coated Large Diameter or Stainless Steel, embedment depth - 1” minimum to 1-3/4” maximum, and type of base material - concrete, brick or block. There are numerous technical specifications that must be considered when using Tapcon® screws. Tapcon Drill Bits provide increased consistency, unmatched strength and pinpoint precision to achieve maximum holding power. ![]() Technical Specifications for Tapcon® Concrete Screws
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