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MB – Multi-Use Secure Clip

The multi-use secure clip (MB) is used in a variety of different applications including head-of-wall, joist connections, securing hips, rafters and trusses, reinforcing header connections, bridging, etc. It is constructed with mill certified 57 ksi steel designed to resist vertical and lateral loads. Pre-punched guide holes are provided in each leg for superior installation efficiency.

MB Clip

Features

  • Variety of lengths available
  • Loads based on #10 screws
  • Pre-punched guide holes
  • No labor used cutting scrap or angle
thumbnail of MB

MB Technical Flyer

Material Composition

  • Mill certified steel
  • ASTM A653/A653M
  • 54 mil
    • 57 ksi yield strength
    • 65 ksi tensile strength
    • G60 galvanized coating
  • 68 mil
    • 57 ksi yield strength
    • 65 ksi tensile strength
    • G90 galvanized coating
MB Clip

Allowable Loads

Part No. Stud Properties F1 Allowable Loads (lbs) F2 Allowable Loads (lbs) F3 Allowable Loads (lbs)
Mil Gauge Fy (ksi) 2 #10 Screws 3 #10 Screws 2 #10 Screws 3 #10 Screws 2 #10 Screws 3 #10 Screws
MB350 33EQS 20 57 402 603 206 310 206 310
33 20 33 353 530 168 251 168 251
43EQS 18 57 635 952 280 420 280 420
43 18 33 526 789 219 328 219 328
54 16 50 1068 1602 396 594 396 594
68 14 50 1510 2266 499 749 499 749
97 12 50 2261 2420 712 965 712 965
Maximum Allowable Clip Capacity Max F1 = 2420 lbs Max F2 = 965 lbs Max F3 = 965 lbs
Part No. Stud Properties F1 Allowable Loads (lbs) F2 Allowable Loads (lbs) F3 Allowable Loads (lbs)
Mil Gauge Fy (ksi) 2 #10 Screws 4 #10 Screws 5 #10 Screws 2 #10 Screws 4 #10 Screws 5 #10 Screws 2 #10 Screws 4 #10 Screws 5 #10 Screws
MB550 33EQS 20 57 402 804 1005 206 413 516 206 413 516
33 20 33 353 707 884 168 335 419 168 335 419
43EQS 18 57 635 1269 1587 280 560 700 280 560 700
43 18 33 526 1052 1315 219 437 547 219 437 547
54 16 50 1068 2136 2671 396 792 855 396 792 855
68 14 50 1510 2980 2980 499 855 855 499 855 855
97 12 50 2261 2980 2980 712 855 855 712 855 855
Maximum Allowable Clip Capacity Max F1 = 2980 lbs Max F2 = 855 lbs Max F3 = 855 lbs
Part No. Stud Properties F1 Allowable Loads (lbs) F2 Allowable Loads (lbs) F3 Allowable Loads (lbs)
Mil Gauge Fy (ksi) 2 #10 Screws 4 #10 Screws 7 #10 Screws 2 #10 Screws 4 #10 Screws 7 #10 Screws 2 #10 Screws 4 #10 Screws 7 #10 Screws
MB750 33EQS 20 57 402 804 1407 206 413 722 206 413 722
33 20 33 353 707 1237 168 335 597 168 335 597
43EQS 18 57 635 1269 2221 280 560 980 280 560 980
43 18 33 526 1052 1841 219 437 765 219 437 765
54 16 50 1068 2136 3739 396 792 1387 396 792 1387
68 14 50 1510 3021 5286 499 998 1740 499 998 1740
97 12 50 2261 4521 6100 712 1424 1740 712 1424 1740
Maximum Allowable Clip Capacity Max F1 = 6100 lbs Max F2 = 1740 lbs Max F3 = 1740 lbs
Part No. Stud Properties F1 Allowable Loads (lbs) F2 Allowable Loads (lbs) F3 Allowable Loads (lbs)
Mil Gauge Fy (ksi) 2 #10 Screws 5 #10 Screws 9 #10 Screws 2 #10 Screws 5#10 Screws 9 #10 Screws 2 #10 Screws 5 #10 Screws 9 #10 Screws
MB950 33EQS 20 57 402 1005 1809 206 516 929 206 516 929
33 20 33 353 884 1590 168 419 754 168 419 754
43EQS 18 57 635 1587 2856 280 700 1260 280 700 1260
43 18 33 526 1315 2367 219 547 984 219 547 984
54 16 50 1068 2671 4807 396 991 1740 396 991 1740
68 14 50 1510 3776 6100 499 1248 1740 499 1248 1740
97 12 50 2261 5652 6100 712 1740 1740 712 1740 1740
Maximum Allowable Clip Capacity Max F1 = 6100 lbs Max F2 = 1740 lbs Max F3 = 1740 lbs

Screw shear values are based on the SSMA Screw Table with the following notes:

  1. Allowable loads have not been increased for wind, seismic activity, or other factors.
  2. The allowable loads are based on the steel properties of the members being connected, per AISI S100.
  3. The nominal strength of the screw must be at least 3.75 times the allowable loads.
  4. Values include a 3.0 factor of safety.
  5. Penetration of screws through joined materials should not be less than three exposed threads. Install and tighten screws in accordance with the screw manufacturer’s recommendations.
  6. Allowable loads indicated on the table(s) are for force in single direction only. The designer shall use the combined forces check as required by AISI S100 if more than one force is applied to the connection.

Quantity / Order Information

Part No. Length Qty / Bucket Lbs / Bucket
MB350-54 3 ½” 100 25
MB350-68 3 ½” 100 31
MB550-54 5 ½” 100 38
MB550-68 5 ½” 100 48
MB750-54 7 ½” 75 39
MB750-68 7 ½” 75 49
MB950-54 9 ½” 50 33
MB950-68 9 ½” 50 42