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Titen® Stainless-Steel Concrete and Masonry Screw


Stainless Steel Titen® screws are ideal for attaching various types of components to concrete and masonry, such as fastening electrical boxes or light fixtures. They offer the versatility of our standard Titen screws with enhanced corrosion protection. Available in hex and Phillips flat head.

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"


Type 410 stainless steel


Zinc-plated with a protective overcoat


  1. 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.
  2. Position fixture, insert screw and tighten using drill and Titen screw installation tool fitted with a hex socket or phillips bit.

Preservative-treated wood applications: suitable for use in non-ammonia formulations of CCA, ACQ-C, ACQ-D, CA-B, SBX/DOT and zinc borate. Acceptable for use in exterior environments. Use caution not to damage coating during installation. The 410 stainless-steel Titen with top coat provides “medium” corrosion protection. Recommendations are based on testing and experience at time of publication and may change. Simpson Strong-Tie cannot provide estimates on service life of screws.


  • Industry studies show that hardened fasteners can experience performance problems in wet or corrosive environments. Steps must be taken to prevent inadvertent sustained loads above the listed allowable loads. Overtightening and bending moments can initiate cracks detrimental to the hardened screw’s performance. Use the Simpson Strong-Tie Titen installation tool kit as it has a bit that is designed to reduce the potential for overtightening the screw.
  • Oversized holes in the base material will reduce or eliminate the mechanical interlock of the threads with the base material and will reduce the anchor’s load capacity.

Technical Information

Related Literature

Product Information Tables

Stainless-Steel Titen® Product Data
Size (in.) Head Style Model No. Drill Bit Dia. (in.) Quantity
Box Carton
1/4 x 1 1/4 Hex-Head TTN25114HSS 3/16 100 1600
1/4 x 1 3/4 TTN25134HSS 100 500
1/4 x 2 1/4 TTN25214HSS 100 500
1/4 x 2 3/4 TTN25234HSS 100 500
1/4 x 3 1/4 TTN25314HSS 100 400
1/4 x 3 3/4 TTN25334HSS 100 400
1/4 x 4 TTN25400HSS 100 400
1/4 x 1 1/4 Phillips Flat-Head TTN25114PFSS 3/16 100 1600
1/4 x 1 3/4 TTN25134PFSS 100 500
1/4 x 2 1/4 TTN25214PFSS 100 500
1/4 x 2 3/4 TTN25234PFSS 100 500
1/4 x 3 1/4 TTN25314PFSS 100 400
1/4 x 3 3/4 TTN25334PFSS 100 400
1/4 x 4 TTN25400PFSS 100 400
One drill bit is included in each box.