Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin is a nail drive expansion anchor with a tamper proof mushroom head that can be used in concrete, block, brick or stone. The body of the anchor is made from a rust resistant alloy called zamac and the nail is made from zinc plated carbon steel.  This anchor is not recommended for any type of overhead, life-safety applications or where it will be in a sustained tensile loading situation.

Applications:
The 3/16” x 7/8” Mushroom Head Powers Fasteners Zamac Nailin anchor is designed for anchoring very thin and light material to normal weight concrete, hollow concrete masonry (CMU), brick masonry or natural stone.

Listings:
Federal GSA Specifications are met by the Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin listed as FF-S325C, Group V, Type 2, Class3 and CID A-A 1925A, Type 1.

Material Specifications:
The materials used in the manufacture of the Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin are steel AISI 1018 in the nail, Zamac Alloy in the body and ASTM B 633, SC1, Type III (Fe/Zn 5) in the plating of the nail.

Diameter:
The diameter of the Powers Fasteners 3/16” x 7/8” Mushroom Zamac Nailin is designated by the first number in the description, or 3/16”.

Length:
The length of the Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin is the second number in the description. or 7/8”. The length is measured from underneath the head.

Head Height and Width
The height of the Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin measures 7/64” and the width is 13/32”.

Diameter of Hole:
The diameter of the hole that needs to be drilled into the base material is 3/16”. It must be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill that is set in the hammer and rotation mode.

Fixture Clearance Hole:
The hole in the fixture must be slightly larger and measure a minimum of 1/4” to allow the Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin to be inserted through the hole in the fixture and into the hole in the base material.

Spacing
The critical spacing between anchors for full anchor capacity for the Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin is equal to 10d ”the minimum distance with a reduced capacity is 5d”.  The critical distance from an unsupported edge is 12d and the minimum distance with reduced capacity is 5d.

Minimum Embedment:
Each Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin must be embedded into the concrete a minimum distance of 3/4” to insure minimum holding values.

Material Thickness:
To determine the maximum thickness of material that can be fastened using the Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin is 1/8”, which is calculated by subtracting the minimum embedment depth of 3/4” from the overall length of 7/8”.

Packaging:

 Allowable Load Capacities

This is just a partial listing of holding values as published by Powers Fasteners, Inc. For complete detailed information, including all and parameters and notes, go to Technical Information.

2000-PSI Normal-Weight Concrete

 Hollow Concrete Masonry -  f’m greater than or equal to 1,500psi

 Solid or Hollow Clay Brick Masonry - f’m greater than or equal to 1,500psi

Installation:

• The Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin is not recommended for overhead applications.
• Using a 3/16” diameter carbide drill bit that meets ANSI Standard B212.15, drill a hole in the base material to a minimum of 1/4” deeper than the minimum embedment depth of 3/4”.   Make sure that the anchor embedment into the base material meets the minimum embedment depth of 3/4”.
• Insert the Powers Fasteners 3/16” x 7/8” Mushroom Head Zamac Nailin through the hole in the fixture and into the hole in the base material. 
• Using a hammer, drive the nail into the anchor body. Make sure not to overdrive the nail into the anchor body and that the head of Nailin anchor is seated tight against the surface of the fixture.

Links:

Concrete Fastening Systems, Inc.
Powers Fasteners, Inc.