Powers Fasteners Tapper® Hex Slotted Head 3/16” x 1-1/4” Concrete Screw Anchor

Purchase Anchors

Material and Coating:

Each 3/16" x 1-1/4” Tapper® slotted hex head concrete screw is coated with a blue Perma-Seal coating for rust resistance and is manufactured from carbon steel.

Diameter:

The first number in the description refers to the diameter of the concrete screw anchor. The 3/16" x 1-1/4” Tapper® slotted hex head concrete screw anchor has a designated diameter of 3/16”.

Length:

The second number 1-1/4” refers to the length of the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw anchor.  The length of the slotted hex headed concrete screw anchor is measured from underneath the head.

Hole Diameter:

A 5/32” hole must be drilled into the base material and is slightly smaller than the designated diameter of the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw anchor.

Masonry Bit for Powers Fasteners Tapper® Hex Slotted Concrete Screws:

The 3/16" x 1-1/4” Tapper® slotted hex head concrete screw anchor requires a 5/32” diameter carbide tipped bit that meets ANSI standards be used in a hammer drill (set in the hammer and rotation mode) to drill the hole in the base material.

Depth of Hole:

The hole in the base material needs to be drilled a minimum of 1/4” deeper than the embedment of the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw anchor.  This extra space allows for any dust to fall out of the way during installation.

Minimum Embedment:

The minimum embedment of for the 3/16" x 1-1/4” Tapper®  hex head concrete screw anchor is 1.”

Maximum Embedment:

The 3/16" x 1-1/4” Tapper®  hex head concrete screw anchor should never be embedded in the base material greater than 1-3/4” to 2”, especially in the dense base material.

Fixture Clearance Hole:

When drilling and inserting the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw through a hole in a fixture, the hole in the fixture must be a minimum of 1/4” in diameter.

Fixture Thickness:

The maximum thickness of material to be fastened for the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw is 1/4” is determined by subtracting the minimum embedment of 1” from the overall length of 1-1/4”.

Threads:

The threads on the 3/16" x 1-1/4” Tapper® slotted head concrete screw measure 3/16” in diameter with 11 threads per inch and are referred to as 11 – 16.

Head Height and Width:

The height of the head on the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw is 7/64”and the width is 1/4"

Washer O.D. and Thickness:

The attached washer has an outside diameter of 11/32” and a thickness of 1/32”.

Hex Driver:

A 1/4” hex nut driver is used to install the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw, a #2 slotted drive can be also used.

Material Specifications:

The anchor body of the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw is case hardened AISI 1022 with a Perma-Seal Fluoropolymer coating or finish.

Packaging:

The 3/16" x 1-1/4” Tapper® slotted hex head concrete screw from Powers Fasteners is packaged 100 pieces per box with one (1) 5/32” x 3-1/2” carbide tipped drill bit. Each carton contains 5 boxes or 500 pieces.

ALLOWABLE LOAD CAPACITIES:

The allowable load capacity is calculated using a safety factor of 4. Linear interpolation may be used and the critical minimum spacing and edge distance, as well as reduction factor, are listed in the design criteria section at the Powers Website below: http://www.powers.com/pdfs/mechanical/02724.pdf

Normal Weight Concrete

Ordering Information:

Installation Procedure:

• Using a 5/32” diameter ANSI standard carbide tipped drill bit in a hammer drill set in the hammer and rotation mode, drill a hole in the base material a minimum of 1/4” deeper than the required embedment.
• Blow the hole clean of all dust and other material
• Insert the head of the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw into the 1/4” nut driver and set the drill to the rotation mode only.
• Insert the point of the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw through the hole in the fixture and into the predrilled hole in the base material.
• Drive the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw in one steady continuous motion until the head is tight against the surface of the fixture.
• Make sure that the 3/16" x 1-1/4” Tapper® slotted hex head concrete screw does not spin in the hole.

Purchase Anchors