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316 Stainless Steel Wedge Anchor

Thursday, August 2, 2012
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Purchase 316 Stainless Steel Wedge Anchors

Base Material

All wedge anchors should be used only in solid concrete. They should not be used in hollow materials such as brick or block.

Holding Values

The holding values of wedge anchors are the same regardless of the material they are manufactured from.  Zinc plated carbon steel, hot-dipped galvanized, 303/304 and 316 stainless steel wedge anchors have the same pull-out strength and shear capacity.

  • Pull Out – each diameter of wedge anchor has a minimum depth of embedment into the concrete that will ensure minimum pullout strength.  In most cases, using an embedment that is deeper than the minimum embedment will produce higher pullout values.  
  • Shear – The sheer value does not change with embedment depth and is directly related to the diameter of wedge anchor being used.

Hole Diameter

The hole drilled in the concrete is equal to the diameter of the 316 stainless steel wedge anchor being installed.  A 3/8” wedge anchor requires a 3/8” hole to be drilled in the concrete.  Hole to wedge anchor tolerance is critical to obtain proper holding values.

Hole Depth

Wedge anchors do not require the bottom of the hole to be set and must be a minimum of 1/2” deeper than the wedge anchor will be embedded.  This allows space for any dust that is created during the installation to fall into and stay safely out of the way.

Type of Bit

The bit used to drill the hole in the concrete must have a carbide tip, meet ANSI standards and be used in a hammer drill that both rotates and hammers.  

  • Carbide Tip – The carbide tip on the bit is for drilling concrete; carbide is very hard and is used to pulverize the concrete and remove the dust from the hole.
  • ANSI Standards – ensures proper tolerance between the bit and hole size required for installing wedge anchors.  Although most carbide tipped bits used in hammer drills meet these standards, it is important to make sure that the bit is marked to show it meets ANSI standards.
  • Hammer Drill – the only way to ensure a proper hole in the concrete is to use a hammer drill.  The hammer motion pulverizes the concrete, and the rotation and flutes on the bit remove the dust at the proper rate.  It is important to check that the switch on the drill is set in the hammer and rotation mode before drilling the hole in the concrete.

Sizes

316 stainless steel wedge anchors come in different diameters and different lengths. The first number in the description refers to the diameter of the anchor and the second number refers to the length.

  • Diameter- the diameter of 316 stainless steel wedge anchor used for any application depends on what is specified by an engineer, on the diameter of the hole in the item being fastened or on the amount of holding values required.
  • Length – the length of the chosen anchor is determined by adding the thickness of the item being fastened to the minimum embedment for the diameter being installed, plus space for the nut and washer.

Packaging

Each diameter and length of 316 stainless steel wedge anchor is packaged with the correct number and size of 316 stainless nuts and washers.

Installing

  1. Drill the hole in the concrete using a hammer drill in the hammer mode, using carbide tipped drill bit that meets ANSI standard B212.15 and is the same diameter as the diameter of the 316 stainless steel wedge anchor being installed.
  2. Drill the hole to a minimum of 1/2” deeper than the wedge anchor will penetrate the base material, making sure that the anchor meets minimum embedment requirements.
  3. Clean out the hole of all dust and debris by using a wire brush, compressed air or vacuum.
  4. Thread the 316 stainless steel nut onto the threaded end of the 316 stainless steel wedge anchor. The top of the nut must be flush with the top of the wedge anchor to protect the threads from damage during installation.
  5. Insert 316 stainless steel wedge anchor, clipped end first, into the pre-drilled hole in the concrete.  If the wedge anchor is being installed through a hole in a fixture, make sure that the hole diameter is larger than the diameter of the wedge anchor being used.
  6. With a hammer, strike the nutted end of the wedge anchor until a minimum of 6 threads is below the surface of the concrete or the surface of the item being attached.
  7. Finger-tighten the nut.
  8. Take a wrench and turn the nut clockwise 2 to 3 turns or until the proper torque values for the diameter of wedge anchor being used is obtained.

Purchase 316 Stainless Steel Wedge Anchors



 

Always use personal protective equipmentAs with any anchoring project, it is important to keep safety in mind and follow instructions carefully. Always remember to wear safety goggles, handle all tools with extra care and follow all technical specifications. This article is meant to serve only as a basic explanation of concrete fasteners. Always refer to manufacturer's instructions or consult a contracting expert during any anchoring project.

Article Written By:
Mike Pistorino, Vice-President Operations

 

 

 

 


Concrete Fastening Systems, Inc. has over 40 years of experience selling concrete fasteners. We can ship out one box or a whole pallet of concrete anchors. Our products are of the highest quality... "your satisfaction is guaranteed". We ship all orders the same day the order is received.

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