Drift Headed Rail (DHR97) and Drift Clips (DRC)New
2-PIECE SYSTEM FOR DRIFT, DEFLECTION AND RIGID APPLICATIONS for cast-in-place
ClarkDietrich Drift Headed Rail (DHR-97) and Drift Clip 97 mils or 68mils (12ga or 14ga) is a uniquely designed two-piece system that is used to attach curtain-wall studs to the building structure and allows for vertical and lateral movement or to be rigidly attached.
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The system utilizes a C-Shaped Drift Headed Rail and distinctively designed Drift Rail Clips that rotate into position for easy installation. The Drift Headed Rail is a C-Shaped Drift Rail with nelson studs welded at 8" o.c. for a cast-in-place applications. For mechanically fastened applications refer to the DR-97 Drift Rail. The Drift Rail Clips use Proprietary Deflection Screws for attachment to the wall studs and allows for 3" vertical deflection (1-1/2" up and down) and is also designed with 1/8" holes to rigidly attach wall studs.
- Clip Express Sales at 866-638-1908 or clipexpress@clarkdietrich.com
- Technical Support at 888-437-3244 or support@clarkdietrich.com
12ga Drift headed rail w/ nelson headed studs (DHR-97)
Product Specifications
Headed Anchor Material: Grades 1010 through 1020, 51ksi (351MPa) minimum yield strength, 65ksi (448MPa) minimum tensile strength
Physical properties of Headed Anchors are in accordance with AWS D1.1.
Coating: G90 (Z275) hot-dipped galvanized coating
See submittals for product weights
Product Data & Ordering Information
| Product Code | Gauge | Mils | Nelson Stud Spacing | Nelson Stud Dimensions | Rail Length | Packaging |
|---|---|---|---|---|---|---|
| DHR-97 | 12 | 97 | 8" | 3/8" Dia. x 3" length with 3/4" head diameter | 12' | individually |
14ga Drift clips (DRC-68)
Product Specifications
Material: Structural Grade 50 Type H (ST50H), 50ksi
Coating: G90 (Z275) hot-dipped galvanized coating
See submittals for product weights
Proprietary Deflection Screws
ClarkDietrich deflection clips include our proprietary deflection screw that has been specifically designed to provide friction-free deflection. These fasteners eliminate drag, binding or resistance that can often occur with common fasteners.
Product Data & Ordering Information
| Product Code | Gauge | Mils | Assembly Standoff | No. of slots per Clip | No. of holes per Clip | Packaging |
|---|---|---|---|---|---|---|
| DRC3-68 | 14 | 68 | 4.5" | 2 | 4 | 25 clips / 55 deflection screws per box |
| DRC6-68 | 14 | 68 | 7" | 4 | 8 | 25 clips / 80 deflection screws per box |
| DRC8-68 | 14 | 68 | 8.5" | 4 | 8 | 25 clips / 80 deflection screws per box |
12ga Drift clips (DRC-97)
Product Specifications
Material: Structural Grade 50 Type H (ST50H), 50ksi
Coating: G90 (Z275) hot-dipped galvanized coating
See submittals for product weights
Proprietary Deflection Screws
ClarkDietrich deflection clips include our proprietary deflection screws that has been specifically designed to provide friction-free deflection. These fasteners eliminate drag, binding or resistance that can often occur with common fasteners.
Product Data & Ordering Information
| Product Code | Gauge | Mils | Assembly Standoff | Slots per Clip | Holes per Clip | Packaging |
|---|---|---|---|---|---|---|
| DRC3-97 | 12 | 97 | 4.5" | 2 | 4 | 25 clips / 55 deflection screws per box |
| DRC6-97 | 12 | 97 | 7" | 4 | 8 | 25 clips / 80 deflection screws per box |
| DRC8-97 | 12 | 97 | 8.5" | 4 | 8 | 25 clips / 80 deflection screws per box |
drift stops (optional)
To restrict clip lateral movement (Drift) along the Drift Rail, install one of two types of stops:
- Drift Locking Angle (DRLA) is an L-shaped clip
- Drift Locking Clip (DRLC) is a C-shaped clip












