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 Model 674 


security grille 

Overhead Door´s upward-coiling perforated grille (Model 674) provides an attractive yet functional means to secure areas where public access must be restricted. Perfect for interior applications such as retail, pharmacies and healthcare facilities, the perforated aluminum panels provide security without sacrificing visual access, air circulation or light infiltration.

Available in clear anodized or premium PowderGuard™ powder coat finish and with an optional electric operator -- our rolling grilles are well-suited to most any interior environment and application.


Manual unless size requires chain hoist

Curtain material


Curtain pattern

Perforated: .062” (1.57 mm) thick perforated aluminum panels. Perforations are 3/16” (4.76 mm) diameter and are spaced 7/32” (5.56 mm) apart.

Guide type

Extruded aluminum with continuous PVC wear strips


Interior face of wall


Clear anodized


Center locking bottom bar with ½” diameter steel throw rods. Comes standard with cylinder locks on both sides or thumb turn on secured side


12 month limited warranty
  • Operation: electric operator, chain hoist, removable awning crank or crank box
  • Controls: time clock, card reader, keypad access
  • Hood – primed galvanized steel, mill finished aluminum, clear anodized aluminum, stainless steel
  • Fascia and back hoods: aluminum, stainless steel
  • PowderGuard™ premium powder coat paint finish in 197 standard colors, or color-matched to specification available on hood, curtain, guides, headplates
  • PowderGuard™ Zinc and PowderGuard™ Weathered finishes