The Simpson SM1 StrapMate Reusable Strap Holder by Simpson Strong-Tie is an engineered composite plastic holder built to keep STHD and LSTHD embedded straps vertically aligned throughout a concrete pour, directly reducing the risk of spalling. The friction fit design snaps into place quickly, and because the holder is fully reusable, it can be pulled after the pour and put back to work on the next job.

Key Features

• Reusable construction - remove the holder after each pour and reinstall it on future projects, reducing waste and lowering per-pour cost
• Compatible with Simpson Strong-Tie STHD and LSTHD embedded straps - purpose-built fitment means the strap stays properly seated without improvised solutions
• Accommodates forms from 3/4 in. thick to 1-3/4 in. PVL and larger - broad form-thickness range keeps one holder usable across a variety of framing setups
• Positions the strap off the front edge of the form board - correct offset placement maintains vertical alignment so the embedded strap lands exactly where it needs to be in the finished concrete
• Made from engineered composite plastic - material resists the wet concrete environment while remaining lightweight and easy to handle on the form
• Friction fit installation - the holder locks into position without special tools, speeding up form prep and keeping the strap stable until the concrete sets

Why This Product

• Protects your concrete work at the source - by holding STHD and LSTHD straps vertically aligned during the pour, the SM1 directly minimizes the possibility of spalling, which means cleaner results and fewer callbacks
• Saves money over time through reusability - unlike single-use positioning aids, this holder is designed to be removed after each pour and redeployed, stretching your investment across multiple projects
• Speeds up form preparation - the friction fit snaps on quickly with no special tools, so crews spend less time fussing with strap positioning and more time moving the job forward
• Flexible enough for common form configurations - compatibility with form boards from 3/4 in. plywood through 1-3/4 in. PVL and larger means the SM1 travels from one pour setup to the next without requiring a different holder for each situation

Specifications

• Model Number: SM1
• Brand: Simpson Strong-Tie
• Material: Composite Plastic
• Finish: Composite Plastic
• Install With: (2) 0.131 in. x 2-1/2 in. Duplex nails
• Compatible Straps: Simpson Strong-Tie STHD and LSTHD embedded straps
• Compatible Form Thickness: 3/4 in. to 1-3/4 in. PVL and larger
• Country of Origin: United States

Approved Applications

• Maintaining vertical alignment of STHD embedded straps during concrete pours
• Maintaining vertical alignment of LSTHD embedded straps during concrete pours
• Use with form boards ranging from 3/4 in. thick plywood to 1-3/4 in. PVL forms and larger