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Simpson Strong-Tie

3/8" x 3" Simpson Strong-Tie Titen HD® Countersunk Head Screw Anchor Zinc Plated TH37300CS, 50/Box



  • Qualified for static and seismic loading conditions
  • Standard fractional sizes, hole size same as anchor size
  • No special drill bit required — designed to install using standard-sized ANSI tolerance drill bits
  • Removable — ideal for temporary anchoring or applications where fixtures may need to be moved
  • T50 6-lobe drive reduces driver-bit cam-outs, resulting in easier installation
  • Countersunk head allows for flush-mount applications that are not possible with a hex head
  • Serrated teeth on the tip of the Titen HD screw anchor facilitate cutting and reduce installation torque
  • Zinc plated; not recommended for permanent exterior use or highly corrosive environments
  • Anchor size: 3/8 in. x 3 in.
  • Quantity: 50
Products specifications
Bit Size3/8"
Minimum EmbedmentSee PDF
Box Qty50
MaterialCarbon Steel
Minimum SpacingSee PDF
Minimum Edge DistanceSee PDF
Maximum Fixture ThicknessSee PDF
Minimum Fixture Hole Diameter (In Place)See PDF
Minimum Fixture Hole Diameter (Hole Spotted)See PDF
Maximum TorqueSee PDF
Wrench Size For NutT50 6-Lobe
Length MeasurementOverall length including head
Brand NameSimpson Strong-Tie
* Values shown are average ultimate values and are offered only as a guide and are not guaranteed. A safety factor of 4:1 or 25% is generally accepted as a safe working load

The information on this page is intended for preliminary guidance only. For complete safety and to verify accurate information, please consult the (PDF linked below) to obtain the manufacturer’s values when selecting the anchors for your project.

The Titen HD heavy-duty screw anchor family of products set the standard for high-performance anchoring and ease of installation. The Titen HD (carbon steel) is designed for use in dry, interior, noncorrosive environments or temporary outdoor applications, while the Titen HD Type 316 stainless-steel option offers you long-lasting corrosion resistance for unsurpassed peace of mind. Titen HD offers industry-leading performance even in seismic and wind-governed conditions. The countersunk head style is for applications that require a flush-mount profile. Countersinking also leaves a cleaner surface appearance for exposed through-set applications. The anchor head’s 6-lobe drive eases driving and is less prone to stripping than traditional recessed anchor heads.


  1. Drill a hole in the base material using a carbide drill bit the same diameter as the nominal diameter of the anchor to be installed. Drill the hole to the specified embedment depth plus minimum hole depth overall (see table below) 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 the dust from drilling and tapping.
  2. Insert the anchor through the fixture and into the hole.
  3. Tighten the anchor into the base material until the bottom of the countersunk head contacts the fixture.
Titen HD Diameter (in.) Drive Type Recommended Fixture Hole Size (in.) Min. Hole Depth Overdrill (in.)
Suggested fixture hole sizes are for structural steel thicker than 12 gauge only. Larger holes are not required for wood or thinner cold-formed steel members.
1/4 T30 3/8 to 7/16 1/8
3/8 T50 1/2 to 9/16 1/4


  • Holes in metal fixtures to be mounted should match the diameter specified in the table above
  • Use a Titen HD screw anchor one time only — installing the anchor multiple times may result in excessive thread wear and reduce load capacity
  • Do not use impact wrenches to install into hollow CMU
  • Oversized holes in base material will reduce or eliminate the mechanical interlock of the threads with the base material and reduce the anchor's load capacity
  • Installation of concrete screw generally is influenced by many factors such as but not limited to, concrete compressive strength, type of aggregate, installation location, installation direction and tools used for installation

Link Image Catalog PDF

Link Image Product Information (on Simpson Website)

Package information
7.875 in. x 3.5 in. x 3.5 in.,  6.5 lbs.

California Prop 65 WARNING! Cancer

Carton Reference 10707392003202

Pallet Reference 50707392003200

Extra Information

Simpson Strong-Tie
Bit Size:
Minimum Embedment:
Carbon Steel
Thread Type:
Undercut Design
Box Qty:
Minimum Spacing:
Minimum Edge Distance:
Minimum Fixture Hole Diameter (In Place):
Minimum Fixture Hole Diameter (Hole Spotted):
Length Measurement:
Overall length including head
Brand Name:
Simpson Strong-Tie
Concrete Application:
Cracked & Uncracked Approved
Head Type:
Countersunk Phillips
__Product Type:
Concrete Screw

Warranty Information

Link ImageLimited warranty, available at