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.


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 CodeGaugeMilsNelson Stud
Spacing
Nelson Stud
Dimensions
Rail
Length
Packaging
DHR-9712978"3/8" Dia. x 3" length with 3/4" head diameter12'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 CodeGaugeMilsAssembly
Standoff
No. of slots
per Clip
No. of holes
per Clip
Packaging
DRC3-6814684.5"2425 clips / 55 deflection screws per box
DRC6-6814687"4825 clips / 80 deflection screws per box
DRC8-6814688.5"4825 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 CodeGaugeMilsAssembly
Standoff
Slots
per Clip
Holes
per Clip
Packaging
DRC3-9712974.5"2425 clips / 55 deflection screws per box
DRC6-9712977"4825 clips / 80 deflection screws per box
DRC8-9712978.5"4825 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