How long should concrete anchor bolts be?

Published by Charlie Davidson on

How long should concrete anchor bolts be?

As a rule of thumb, the space for the nut and washer is equal to the diameter of the wedge anchor being used. For example, if a 2×4 is being fastened to concrete with a 1/2” wedge anchor then the minimum length of wedge anchor would be 1-1/2”(2×4) + 2-1/4”(minimum embedment) + 1/2”(space for nut and washer) = 4-1/4”.

What size are concrete bolts?

M8, M10, M12, M16, Concrete Anchor Screw, Hex Head, Zinc. BULK DISCOUNTS

Bolt/ Hole Size (shank diameter) Total Diameter (including Thread) Socket Size (to fit hex head)
M8 10mm 15mm
M10 12mm 17mm
M12 14mm 19mm
M16 18mm 27mm

What size do concrete anchors come in?

Concrete metal hit anchors come in two diameters – 3/16” and 1/4”, and a variety of lengths from 7/8” to 3”. The anchor diameter equals the hole diameter.

What is the longest Tapcon screw?

1-3/4”
Different lengths of Tapcon® screw are used for different thickness of materials being fastened. The Tapcon® screw requires a minimum embedment of 1” and a maximum embedment of 1-3/4”.

How deep should anchor bolts be in concrete slab?

1/2″
Rule: When drilling a hole into concrete, brick or block base material- the hole must be drilled 1/2″ deeper than the concrete anchor will penetrate. Explanation: The extra depth of the hole will ensure that the anchor does not bottom out and will allow space for any dust that may be created in the drilling process.

What size Tapcon do I need for 2×4?

For example, a 2×4 is 1-1/2” thick, so the minimum length of tap con to use would be 1-1/2” + 1” = 2-1/2”. The maximum embedment for all tap con screws is 1-3/4”.

How deep should concrete anchors go?

Steps to Installing Concrete Fasteners The hole should be drilled 1/4″ to 1/2″ deeper into the base material than the anchor will penetrate. This allows for any material to fall when the anchor is inserted into the hole. After the hole is drilled, it must be cleaned of all debris, material or dust.

How deep should wedge anchor bolts be in concrete?

Hole Diameter & Depth A 5/8” concrete wedge anchor requires a 5/8” hole to be drilled into the concrete. The hole in the concrete needs to be drilled a minimum of 1/2” deeper than the concrete wedge anchor will penetrate into the concrete.

Categories: Contributing