HWDC Head-of-Wall Drift-Clip Connector
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Product Details
Made for Versatility, with Proven Strength and Stiffness
The head-of-wall drift-clip connector (HWDC) is used to secure the head of a wall to the bottom of a slab or beam. The unique design allows anchor screws to be installed closer to the bend, providing a stronger and stiffer connection while also allowing horizontal and vertical movement during seismic and high-wind events. HWDC5.25 provides anchorage location options with a third slot providing a solution for clips overhanging beam flanges.
HWDC connectors are an optimal solution for adding strength to window or door jambs at head-of-wall connections. Tested load values are provided for anchorage to steel and concrete.
Key Features
- Accommodates 1" of lateral drift in each direction, and 1" of upward and downward vertical deflection
- Unique design and placement of the anchorage slots allows for closer attachment of anchorage to the clip bend, providing increased load capacity
- The HWDC5.25 clip has three slots located at the anchorage leg allowing for attachment at the outer slots (anchorage pattern — centered) for maximum capacity or anchorage to the adjacent slots (anchorage pattern — off center) for walls that overhang the edge-angle or beam-edge
- Stiffening ribs are placed in between anchorage slots through the bend to provide additional strength and stiffness
- Simpson Strong-Tie® No-Equal® stamps mark the center of the slots to help ensure proper shouldered screw and anchor placement
Product Includes
- (55) XLSH78B1414 shoulder screws are provided with each order
Material
- 97 mil (12 ga.), 50 ksi
Finish
- Galvanized (G90)
Installation
- Use the specified type and number of fasteners and anchors.
- In the vertical slots, use the specified number of #14 shoulder screws (included) for attachment to the stud. Install screws to align with No-Equal stamp.
- For attachment to steel, use Simpson Strong-Tie Strong Drive® XL Large-Head Metal Screws (XLQ114B1224). Use two screws centered in horizontal slot. Install screws to align with the No-Equal stamp and then back out one half-turn.
- For attachment to concrete, use a Titen Turbo™ screw anchor. Use two screws centered in each horizontal slot. Install screws to align with the No-Equal stamp and back out half-turn.
Ordering Information
- HWDC5.25-KT25, HWDC3.37-KT25 — (55) XLSH78B1414 #14 shoulder screws are provided with each order
- Replacement #14 shoulder screws for the HWDC are XLSH78B1414-RP83
Related Literature
Product Information Table
| Model No. | Thickness (mil) | Ga. | W (in.) | Product Includes | Coating/Material | Packaging Qty. |
|---|---|---|---|---|---|---|
| HWDC3.37-KT25 | 97 | 12 | 3 3/8 | (25) clips and (55) XLSH78B1414 #14 shoulder screws | Zinc Galvanized, G90 | 25 |
| HWDC5.25-KT25 | 97 | 12 | 5 1/4 | (25) clips and (55) XLSH78B1414 #14 shoulder screws | Zinc Galvanized, G90 | 25 |
HWDC Allowable Connector Loads
| Model No. | No. of #14 Shoulder Screws to Stud | Anchorage Pattern | Allowable Load, F4 (lb.) | ||
|---|---|---|---|---|---|
| Stud Thickness | |||||
| 33 mil (20 ga.) | 43 mil (18 ga.) | 54 mil (16 ga.) | |||
| HWDC3.37 | 1 | — | 315 | 410 | 580 |
| HWDC5.25 | 2 | Center | 390 | 785 | 1,110 |
| Off Center | 390 | 590 | 770 | ||
- For additional information, see General Notes.
- HWDC allowable connector loads are also limited by the HWDC allowable anchorage loads below. Use the minimum tabulated values from the connector and anchorage load tables as applicable.
- See the illustration for shouldered screw fastener placement to stud framing.
- The published allowable load is the lower of the tested ultimate with a safety factor, load at 1/8" deflection or the fastener calculation limits.
HWDC Allowable Anchorage Loads
| Model No. | Anchorage Pattern | Minimum Base Material | Number of Anchors (Anchorage Pattern) | Allowable Load F4 (lb.) |
|---|---|---|---|---|
| HWDC3.37 | #12-24 self-drilling screws 5/8" Washer Diameter Min. (XLQ114B1224) | A36 Steel 3/16" thick | 2 | 610 |
| Simpson Strong-Tie® 1/4" x 1 3/4" Titen Turbo™ screw anchor (TNT25134H) | Concrete f'c = 2,500 psi | 2 | 340 | |
| HWDC5.25 | #12-24 self-drilling screws 5/8" Washer Diameter Min. (XLQ114B1224) | A36 Steel 3/16" thick | 2 (Center) | 1,440 |
| 2 (Off Center) | 1,150 | |||
| Simpson Strong-Tie 1/4" x 1 3/4" Titen Turbo screw anchor (TNT25134H) | Concrete f'c = 2,500 psi | 2 (Center) | 340 | |
| 2 (Off Center) | 530 |
- For additional information, see General Notes.
- Allowable loads are for clip anchorage only. The capacity of the connection system will be the minimum of the tabulated value and the HWDC allowable connector load table above.
- Tabulated values require a minimum 1 1/4" and 2 5/8" end distance for center and off-center anchorage pattern, respectively, for masonry screws in concrete.
- See the illustration in the image gallery above for anchorage pattern to base material.
Code Reports & Compliance
Drawings
| DWG | DXF | RFA | IFC | SAT | |||
|---|---|---|---|---|---|---|---|
