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Stainless Steel Titen® Screws

Monday, March 31, 2008
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Simpson Anchor Systems, a division of Simpson Strong-Tie, Inc now has a new stainless steel anchor called the Titen® concrete screw. The stainless steel Titen® concrete and masonry screw work well where corrosion may be a concern. The Titen® stainless steel concrete screw is suitable for use in concrete, brick or hollow block base material.

Titen® Stainless-Steel Finish and Material

Titen® concrete screws are made with a 410 stainless steel and are coated for extra protection, giving the screw excellent rust resistance. The coating is referred to as a C4 topcoat and adds extra protection in corrosive environments. Titen® stainless steel concrete screws have been tested in a salt spray test per ASTM B117 with the results showing 5% observed red rust after 1500 hours. The salt spray tests are based on uninstalled 410 stainless steel Titen® concrete screws and may not reflect actual performance once the screws are installed. The salt spray test information is provided to allow comparison with other brands for concrete and masonry screws that are available in the market.

Diameters

The 410 stainless-steel Titen® concrete screws are only available in the 1/4” diameter. Other manufacturers have a 410 stainless steel screw in the 3/16” diameter but they come with a flat phillips head and can be found at /tapcon.

Titen® Lengths

The 1/4” Titen® stainless-steel concrete and masonry screws are available in seven diameters, ranging from 1-1/4” in length to 4” in length. Concrete Fasteners, Inc. at /tapcon
have two (2) longer lengths of 5” and 6” available in the Tapcon® brand concrete screw.

Titen® Head Style

The Titen® stainless-steel concrete and masonry screw come in two different head styles, with each head style used for a different type of application. The hex slotted washer head uses a 5/16” driver and provides excellent bearing surface against the material being attached. The flat phillips countersunk head uses a #3 bit tip and is commonly used in applications where the head is countersunk into the material being fastened.

Diameter of Hole

The size of the hole that needs to be drilled into the base material is critical to the holding values attained by the Titen® concrete screw. An oversized hole may reduce or eliminate the threads’ mechanical interlocking with the base material which will reduce the holding capacity of the Titen® stainless steel screw. The 1/4” stainless steel Titen® concrete screw requires the hole to be drilled with a 3/16” carbide bit that meets ANSI standards. One proper diameter carbide drill bit is packaged with each box of 100 screws.

Titen® Stainless-Steel Minimum Embedment The Titen® stainless steel screw has a minimum embedment into the base material of 1” and a maximum embedment depth of 1-1/2”. This means that the Titen® stainless steel screw must penetrate the base material at least 1” and no deeper than 1-1/2”.

Depth of Hole

The hole should be drilled into the base material deep enough so that the depth of the hole will be 1/2” deeper than the Titen® stainless steel screw will penetrate the base material. This extra space at the bottom of the hole leaves room for dust that is created during the tapping so that it does not interfere with the installation process.

Titen® Stainless-Steel Screw Length

The minimum length of the Titen® stainless steel screw is determined by adding the thickness of the fixture being fastened plus 1”. The maximum length of stainless steel Titen® screw to be used is the fixture thickness plus 1-1/2”.

Base Material Thickness

The base material that the stainless steel Titen® screw is being installed in must be at least 1.5 times the depth of embedment of the screw. For example, if the stainless steel Titen® screw is embedded into the base material 1” then the base material must be a minimum of 1-1/2” thick.

Titen® Installation

1. Drill a hole into the base material using a 3/16” ANSI standard drill bit and a hammer drill. Drill hole at least 1/2” deeper than the screw being used will penetrate.

2. Clean out the hole using compressed air. In overhead applications, the hole does not need to be cleaned.

3. Line up holes by placing hole of the fixture over the hole drilled into the base material.

4. Insert stainless steel Titen® screw through the hole in the fixture and into a hole in the base material. Using a drill, turn the screw clockwise until the head of stainless steel Titen® screw is tight against the fixture.

Titen® Stainless-Steel Product Information

Size (in)

Bit Diameter

Head Style

Part Number

1/4 x 1-1/4

3/16”

Hex

TTN25114HSS

1/4 x 1-3/4

3/16”

Hex

TTN25134 HSS

1/4 x 2-1/4

3/16”

Hex

TTN25214 HSS

1/4 x 2-3/4

3/16”

Hex

TTN25234 HSS

1/4 x 3-1/4

3/16”

Hex

TTN25314 HSS

1/4 x 3-3/4

3/16”

Hex

TTN25334 HSS

1/4 x 4

3/16”

Hex

TTN25400 HSS

1/4 x 1-1/4

3/16”

Flat

TTN25114PFSS

1/4 x 1-3/4

3/16”

Flat

TTN25134 PFSS

1/4 x 2-1/4

3/16”

Flat

TTN25214 PFSS

1/4 x 2-3/4

3/16”

Flat

TTN25234 PFSS

1/4 x 3-1/4

3/16”

Flat

TTN25314 PFSS

1/4 x 3-3/4

3/16”

Flat

TTN25334 PFSS

1/4 x 4

3/16”

Flat

TTN25400 PFSS

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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 Fasteners, 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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