Strong-Bolt 2 vs. Titen HD: Which Simpson Strong-Tie Anchor Should You Use?

Both are Category 1-rated for cracked concrete. The right choice comes down to how they’re installed and where they’re going. SC Fastening Systems breaks down the difference.

Strong-Bolt 2 and Titen HD are two of the most-specified anchors in the Simpson Strong-Tie lineup, and it’s common to see both rated for the same job — cracked and uncracked concrete, seismic and wind-governed conditions, similar load tables at a given diameter. That overlap is exactly what makes the choice confusing. The real difference isn’t performance on paper; it’s how each anchor works mechanically, and that changes which one fits your job better.

Two Different Ways of Grabbing Concrete

The core difference comes down to expansion versus threading:

• Strong-Bolt 2 is a wedge anchor. A tri-segmented clip near the tip expands outward as the nut is torqued down, mechanically wedging against the sides of the drilled hole. Each segment adjusts independently, so if a crack opens and the hole grows slightly, the clip continues expanding to maintain grip — that’s the “follow-up expansion” behind its cracked-concrete rating.
• Titen HD is a screw anchor. It has no expansion mechanism at all — the anchor’s threads cut directly into the concrete as it’s driven in, similar to how a wood screw bites into lumber. There’s no clip, no expansion clip fatigue to worry about, and lower installation torque overall.

Neither mechanism is “better” in the abstract — they solve the anchoring problem differently, and that difference shows up in how each one behaves during and after installation.

Installation: What Changes on the Job Site

• Drill bit tolerance: Titen HD is designed to install with standard ANSI-tolerance drill bits — no special bit required. Strong-Bolt 2, like most wedge anchors, needs a properly sized hole for the expansion clip to seat and function correctly.
• Installation torque: Titen HD is marketed specifically for low installation torque, which matters on jobs with a high volume of anchors to set or when working in awkward overhead positions. Strong-Bolt 2 requires torquing the nut to properly expand the clip.
• Removability: Titen HD anchors can be removed and reinstalled elsewhere, which makes them a common choice for temporary applications — bracing, formwork, or fixtures that may need to be relocated. A set wedge anchor is generally a one-time, permanent installation.
• Head style options: Titen HD is available in hex head for structural applications and a countersunk head for flush-mount profiles — useful when a protruding nut and washer would interfere with framing. Strong-Bolt 2 uses a standard nut-and-washer wedge anchor profile.

If a job involves setting a high volume of anchors, working overhead, or the possibility of relocating a fixture later, those installation differences tend to matter more than the load table.

Where Each One Tends to Get Specified

• Strong-Bolt 2 shows up frequently in MEP applications — hanging pipe, strut, and equipment overhead — and in lightweight or concrete-over-metal-deck applications where its expansion mechanism performs reliably. It’s also commonly specified in coastal, wastewater, and other corrosive environments in its 316 stainless version.
• Titen HD is common for sill plates, ledgers, post bases, and holdown applications — connections where low installation torque and the option to remove the anchor later (for temporary bracing or formwork) are genuinely useful. It’s also specified where edge distance or spacing is tight, since it doesn’t rely on outward expansion the way a wedge anchor does.

Both are available in carbon steel for dry, interior, or temporary outdoor use, and in stainless steel (Strong-Bolt 2 in 304/316, Titen HD in Type 316) for long-term corrosive or exterior exposure.

A Quick Way to Decide

1. Is the connection temporary, or might the fixture be relocated? → Titen HD’s removability is the advantage.
2. Setting a high volume of anchors, or working overhead? → Titen HD’s lower installation torque helps.
3. Is edge distance or anchor spacing tight? → Titen HD’s non-expansion design tends to be more forgiving.
4. Hanging MEP equipment, pipe, or strut overhead — or working in lightweight/metal-deck concrete? → Strong-Bolt 2 is the more commonly specified choice.
5. Both are code-listed, Category 1-rated options for cracked concrete — when in doubt, the installation conditions above are usually the deciding factor, not raw load capacity.

For anything structural or engineer-specified, always confirm the anchor selection against the project’s code report and the engineer of record’s requirements — this guide is a starting point for narrowing the decision, not a substitute for the spec.