Concrete Screws, Stainless Steel

Key Features

Suitable for concrete, brick, grout-filled CMU and hollow-block applications
Suitable for some preservative-treated wood applications
Acceptable for exterior use
Titen drill bits included in each box
Available in lengths from 1 1/4"–4"

Material

Type 410 stainless steel

Installation

Drill a hole in the base material using the appropriate diameter carbide drill bit as specified in the table. Drill the hole to the specified embedment depth plus 1/2" to allow the thread tapping dust to settle and blow it clean using compressed air. Overhead installations need not be blown clean. Alternatively, drill the hole deep enough to accommodate embedment depth and dust from drilling and tapping.
Position fixture, insert screw and tighten using drill and Titen screw installation tool fitted with a hex socket or Phillips bit.

Frequently Asked Questions

Is this the same as a Tapcon?

Not identical — this is a Simpson Strong-Tie Titen® screw, not an ITW Tapcon®. It's a functional stainless-steel equivalent: the same 1/4" diameter, 1 1/4" length, and flat-head countersinking profile, installed the same way in concrete, brick, grout-filled CMU, and hollow block. The main difference is material — this is 410 stainless steel for corrosion resistance, where standard Tapcons are typically carbon steel with a blue coating.

What is the Tapcon equivalent part number?

This screw is functionally equivalent to the ITW Buildex® Tapcon® SPF4-114, as well as the DeWalt Crete-Flex® DFM4EMF690, DeWalt UltraCon SS4 DFM4EUF310, and Elco Crete-Flex SS4 DFM4EMF690.

Why choose 410 stainless over a standard Tapcon?

410 stainless steel offers meaningfully better corrosion resistance than coated carbon steel, which matters for exterior, coastal, and marine applications where a blue-coated carbon screw would eventually rust. It's the reason builders in humid or salt-air environments specify a stainless concrete screw.