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HRS/ST/PS/HST/HTP/LSTA/LSTI/MST/MSTA/MSTC/MSTI Strap Ties

HRS/ST/PS/HST/HTP/LSTA/LSTI/MST/MSTA/MSTC/MSTI

Straps are designed to transfer tension loads in a wide variety of applications.

HRS—A 12 gauge strap with a nailing pattern designed for installation on the edge of 2x members. The HRS416Z installs with Simpson Strong-Tie® Strong-Drive® SDS Heavy-Duty Connector screws.

LSTA and MSTA—Designed for use on the edge of 2x members, with a nailing pattern that reduces the potential for splitting.

LSTI—Light straps that are suitable where pneumatic-nailing is necessary through diaphragm decking and wood chord open web trusses.

MST—Splitting may be a problem with installations on lumber smaller than 3 1/2"; either fill every nail hole with 10dx1 1/2" nails or fill every-other hole with 16d common nails. Reduce the allowable load based upon the size and quantity of fasteners used.

MSTC—High Capacity strap which utilizes a staggered nail pattern to help minimize wood splitting. Nail slots have been countersunk to provide a lower nail head profile.

Finish

PS–HDG; HST3 and HST6–Simpson Strong-Tie® gray paint; all others–galvanized. Some products are available in stainless steel or ZMAX® coating. See Corrosion Information.

Installation

  • Use all specified fasteners. See General Notes.
  • Some products may be installed with the Strong-Drive® SD Connector screw. See model table.
  • View step-by-step installation instructions in the Installer's Pocket Guide (S-C-INSTALL).

Options

Special sizes can be made to order. Contact Simpson Strong-Tie.

Codes

  • MSTC and RPS meet code requirements for reinforcing cut members (16 gauge) at top plate and RPS at sill plate.
  • International Residential Code®- 2000/2006 R602.6.1
  • International Building Code®- 2000/2006 2308.9.8
  • See RPS strap ties.

Related Links

Related Literature

Product Information Tables

Load Tables

Floor-to-Floor Clear Span Table

   These models are approved for installation with the Strong-Drive® SD Connector screw. See the load values below.

  1. Loads include a 60% load duration increase on the fasteners for wind or earthquake loading
  2. Install bolts or nails as specified by Designer. Bolt and nail values may not be combined.
  3. Allowable bolt loads are based on parallel-to-grain loading and these minimum member thicknesses: MST – 2 1/2"; HST2 and
    HST5 – 4"; HST3 and HST6 – 4 1/2".
  4. Use half of the required nails in each member being connected to achieve the listed loads.
  5. When installing strap over wood structural panel sheathing, use 2 1/2" long nail minimum.
  6. Tension loads apply for uplift as well when installed vertically.
  7. NAILS: 16d = 0.162" dia. x 3 1/2" long, 16d Sinker = 0.148" dia. x 3 1/4" long, 10dx1 1/2 = 0.148" dia. x 1 1/2" long. See other nail sizes and information.

Load Values with Nails

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

   These models are approved for installation with the Strong-Drive® SD Connector screw. See the load values below.

  1. Loads include a 60% load duration increase on the fasteners for wind or earthquake loading
  2. 10dx1 1/2" nails may be substituted where 16d sinkers or 10d are specified at 100% of the table loads except where straps are installed over sheathing.
  3. 10d commons may be substituted where 16d sinkers are specified at 100% of table loads.
  4. 16d sinkers (0.148" dia x 3 1/4" long ) or 10d commons may be substituted where 16d commons are specified at 0.84 of the table loads.
  5. Use half of the nails in each member being connected to achieve the listed loads.
  6. Tension loads apply for uplift when installed vertically.
  7. NAILS: 16d = 0.162" dia. x 3 1/2" long, 16d Sinker = 0.148" dia. x 3 1/4" long, 10d = 0.148" dia. x 3" long,
    10dx1 1/2 = 0.148" dia. x 1 1/2" long. See other nail sizes and information.

Load Values with Nails

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

   These models are approved for installation with the Strong-Drive® SD Connector screw. See the load values below.

  1. Loads include a 60% load duration increase on the fasteners for wind or earthquake loading
  2. Install bolts or nails as specified by Designer. Bolt and nail values may not be combined. 
  3. Allowable bolt loads are based on parallel-to-grain loading and these minimum member thicknesses: MST – 2 1/2"; HST2 and
    HST5 – 4"; HST3 and HST6 – 4 1/2".
  4. Use half of the required nails in each member being connected to achieve the listed loads.
  5. When installing strap over wood structural panel sheathing, use 2 1/2" long nail minimum.
  6. Tension loads apply for uplift as well when installed vertically.
  7. NAILS: 16d = 0.162" dia. x 3 1/2" long, 16d Sinker = 0.148" dia. x 3 1/4" long, 10dx1 1/2 = 0.148" dia. x 1 1/2" long. See other nail sizes and information.
Load Values with Strong-Drive® SD Connector Screws
Model No. Fasteners (Total) Allowable Tension Loads (DF/SP) Allowable Tension Loads (SPF/HF)
(160) (160)

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

LSTA9 8-SD9112 1095 715
LSTA12 10-SD9112 1235 895
LSTA15 12-SD9112 1235 1075
LSTA18 14-SD9112 1235 1235
LSTA21 14-SD9112 1235 1215
LSTA24 14-SD9112 1235 1235
ST292 12-SD10112 1215 1215
ST2122 12-SD10112 1480 1325
ST2115 6-SD10112 660 660
ST2215 14-SD10112 1750 1545
LSTA30 14-SD9112 1640 1255
LSTA36 14-SD9112 1415 1255
LSTI49 16-SD9112 4205 2865
LSTI73 16-SD9112 4205 2865
MSTA9 8-SD9112 1095 715
MSTA12 10-SD9112 1370 895
bluearrow MSTA15 12-SD9112 1640 1075
MSTA18 14-SD9112 1640 1255
MSTA21 14-SD9112 1640 1255
MSTA24 14-SD9112 1640 1255
MSTA30 16-SD9112 2050 1435
MSTA36 16-SD9112 1970 1435
MSTA49 16-SD9112 2050 1435
ST6215 16-SD10112 2010 1765
ST6224 20-SD10112 2460 2210
ST9 8-SD10112 1105 885
ST12 10-SD10112 1385 1105
ST18 12-SD10112 1420 1325
ST22 12-SD10112 1420 1325
MSTC28 36-SD9112 4735 3225
MSTC40 46-SD9112 4735 4120
MSTC52 42-SD9112 4735 3765
HTP37Z 20-SD9112 2735 1790
MSTC66 44-SD9112 5850 3940
MSTC78 44-SD9112 5850 3940
ST6236 28-SD10112 3590 3090
HRS6 6-SD9112 820 540
HRS8 10-SD9112 1370 895
HRS12 14-SD9112 1915 1255
MSTI26 26-SD9112 3555 2330
MSTI36 36-SD9112 4925 3225
MSTI48 38-SD9112 5070 3405
MSTI60 38-SD9112 5070 3405
MSTI72 60-SD9112 5070 4760
MST27 30-SD10112 4150 3310
MST37 40-SD10112 5070 4415
MST48 52-SD10112 5310 5035
MST60 68-SD10112 6765 6375
MST72 70-SD10112 6765 6375

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
HRSSee specific model numbers for code listings.
HRS12 ER-102 ER-124 ESR-3096 RR25489 RR25910 FL11470 FL13872
HRS416ZNo code listing: Please contact us for test data.
HRS6 ER-102 ER-124 ESR-3096 RR25489 RR25910 FL11470 FL13872
HRS8 ER-102 ER-124 ESR-3096 RR25489 RR25910 FL11470 FL13872
HSTSee specific model numbers for code listings.
HST2 ESR-2105 ESR-2523 RR25713 FL10852
HST3 ESR-2105 ESR-2523 RR25713 FL10852
HST5 ESR-2105 ESR-2523 RR25713 FL10852
HST5-4 No code listing. Please contact us for test data.
HST6 ESR-2105 ESR-2523 RR25713 FL10852
HST6-41/2 No code listing. Please contact us for test data.
HTP37Z ESR-3096 RR25910
LSTASee specific model numbers for code listings.
LSTA12 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
LSTA15 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
LSTA18 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
LSTA21 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
LSTA24 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
LSTA30 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
LSTA36 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
LSTA9 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
LSTISee specific model numbers for code listings.
LSTI49 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
LSTI73 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTSee specific model numbers for code listings.
MST21/2 No code listing. Please contact us for test data.
MST27 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25910 FL10852
MST37 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25910 FL10852
MST48 ESR-2105 ESR-2523 RR25713 FL10852
MST60 ESR-2105 ESR-2523 RR25713 FL10852
MST72 ESR-2105 ESR-2523 RR25713 FL10852
MSTASee specific model numbers for code listings.
MSTA12 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTA12SSNo code listing: Please contact us for test data.
MSTA12Z ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25910 FL10852
MSTA15 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTA15Z ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25910 FL10852
MSTA18 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTA18SSNo code listing: Please contact us for test data.
MSTA18Z ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25910 FL10852
MSTA21 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTA21Z ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25910 FL10852
MSTA24 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTA24SSNo code listing: Please contact us for test data.
MSTA24Z ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25910 FL10852
MSTA30 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTA30Z ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25910 FL10852
MSTA36 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTA36SSNo code listing: Please contact us for test data.
MSTA36Z ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25910 FL10852
MSTA49 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25489 RR25910 FL10852
MSTA9 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTAM24Z
MSTAM36Z
MSTCSee specific model numbers for code listings.
MSTC28 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTC40 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTC52 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTC66 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTC78 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTISee specific model numbers for code listings.
MSTI26 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTI36 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTI48 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTI60 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
MSTI72 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
PSSee specific model numbers for code listings.
PS218No load capacity: Products not tested or submitted because they are not load rated and code approval not required.
PS418No load capacity: Products not tested or submitted because they are not load rated and code approval not required.
PS720No load capacity: Products not tested or submitted because they are not load rated and code approval not required.
STSee specific model numbers for code listings.
ST12 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST18 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST2115 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST2122 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST22 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST2215 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST292 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST6215 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST6224 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST6236 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872
ST9 ER-102 ER-124 ESR-2105 ESR-2523 ESR-3096 RR25713 RR25489 RR25910 FL10852 FL13872

ESR-2523 is an Index of many of Simpson Strong-Tie Stamped and Welded Cold-formed Steel Products for Wood or Cold-formed Steel Construction

Drawings

Part Orthographic Perspective
HRSNone None
HRS12
HRS12
DWGDXF
None
HRS416Z
HRS416Z
DWGDXF
HRS416Z
DWG DXF
HRS6
HRS6
DWGDXF
None
HRS8
HRS8
DWGDXF
HRS8
DWG DXF
HSTNone None
HST2
HST2
DWGDXF
None
HST3
HST3
DWGDXF
None
HST5None None
HST5-4None None
HST6None None
HST6-41/2None None
HTP37Z
HTP37Z
DWGDXF
HTP37Z
DWG DXF
LSTANone
Floor to Floor Connections
DWG DXF
LSTA Method 1
DWG DXF
LSTA Method 2
DWG DXF
LSTA12
LSTA12
DWGDXF
High Wind-Resistant Construction D133: Load Path Installation Considerations: Cross-Grain Tension
DWG DXF
LSTA15
LSTA15
DWGDXF
None
LSTA18
LSTA18
DWGDXF
High Wind-Resistant Construction D45: Stud to Band Joist
DWG DXF
High Wind-Resistant Construction D72: Wall to Pile/Girder
DWG DXF
Floor to Floor Connections
DWG DXF
Pile to Girder Connectors 2
DWG DXF
Stud to Band Joist Connections Version 2
DWG DXF
LSTA21
LSTA21
DWGDXF
High Wind-Resistant Construction D58: Header to Wall Framing
DWG DXF
High Wind-Resistant Construction D70: Wall to Pile/Girder
DWG DXF
LSTA24
LSTA24
DWGDXF
High Wind-Resistant Construction D111: Gable End to Wall Framing
DWG DXF
LSTA30
LSTA30
DWGDXF
None
LSTA36
LSTA36
DWGDXF
High Wind-Resistant Construction D51: Floor to Masonry/Concrete
DWG DXF
LSTA9
LSTA9
DWGDXF
None
LSTINone
LSTI
DWG DXF
LSTI49
LSTI49
DWGDXF
None
LSTI73None None
MSTNone None
MST21/2None None
MST27
MST27
DWGDXF
None
MST37
MST37
DWGDXF
None
MST48
MST48
DWGDXF
None
MST60
MST60
DWGDXF
None
MST72
MST72
DWGDXF
None
MSTANone
High Wind-Resistant Construction D77: Post/Column to Beam
DWG DXF
MSTA12None None
MSTA12SSNone None
MSTA12ZNone None
MSTA15None None
MSTA15ZNone None
MSTA18
MSTA18
DWGDXF
None
MSTA18SSNone None
MSTA18ZNone None
MSTA21None None
MSTA21ZNone None
MSTA24
MSTA24
DWGDXF
None
MSTA24SSNone None
MSTA24ZNone None
MSTA30
MSTA30
DWGDXF
High Wind-Resistant Construction D118: Load Path Installation Considerations: Bulging Floor-to-Floor Straps
DWG DXF
MSTA30ZNone None
MSTA36
MSTA36
DWGDXF
High Wind-Resistant Construction D46: Stud to Band Joist
DWG DXF
Floor to Floor Connections
DWG DXF
MSTA36SSNone None
MSTA36ZNone None
MSTA49None None
MSTA9None None
MSTAM24ZNone None
MSTAM36ZNone None
MSTCNone None
MSTC28
MSTC28
DWGDXF
None
MSTC40
MSTC40
DWGDXF
None
MSTC52
MSTC52
DWGDXF
None
MSTC66
MSTC66
DWGDXF
None
MSTC78
MSTC78
DWGDXF
None
MSTINone
MSTI
DWG DXF
MSTI26None None
MSTI36None None
MSTI48None None
MSTI60None None
MSTI72None None
PSNone None
PS218
PS218
DWGDXF
None
PS418
PS418
DWGDXF
Pile to Girder Connectors 1
DWG DXF
Pile to Girder Connectors 2
DWG DXF
Stud to Band Joist Connections
DWG DXF
PS720
PS720
DWGDXF
High Wind-Resistant Construction D70: Wall to Pile/Girder
DWG DXF
High Wind-Resistant Construction D71: Wall to Pile/Girder
DWG DXF
High Wind-Resistant Construction D72: Wall to Pile/Girder
DWG DXF
PS720
DWG DXF
STNone None
ST12
ST12
DWGDXF
ST12 front view
DWG DXF
ST12 right view
DWG DXF
None
ST18
ST18
DWGDXF
ST18 front view
DWG DXF
ST18 right view
DWG DXF
None
ST2115
ST2115
DWGDXF
None
ST2122
ST2122
DWGDXF
None
ST22
ST22
DWGDXF
ST22 front view
DWG DXF
ST22 right view
DWG DXF
None
ST2215
ST2215
DWGDXF
None
ST292
ST292
DWGDXF
None
ST6215
ST6215
DWGDXF
None
ST6224
ST6224
DWGDXF
None
ST6236
ST6236
DWGDXF
None
ST9
ST9
DWGDXF
ST9 front view
DWG DXF
ST9 right view
DWG DXF
None