Air Louvers VLFS10P ThruBolt™ Security Vision Lites combine heavy-duty security construction with an integrated speaker port to allow controlled communication through secured openings. Built from thick 11 gauge steel, this model provides increased resistance to abuse and tampering while incorporating a perforated steel speaker panel welded into the frame. Based on the proven VLF ThruBolt™ design, this configuration maintains secure installation while adding functionality for detention, security, and controlled access environments where communication and visibility are required but fire ratings are not necessary.

Specifications
Application: Standard 1-3/4″” door thickness
Glazing thickness: 3/16″” – 1/4″”
Frame material: 11 gauge cold rolled steel
Configuration: Security vision lite with speaker port
Speaker panel: Perforated steel panel welded into frame
Fire rating: Non-fire-rated
Standard finish: Mineral bronze powder coat
Fasteners: #8-32 flathead Phillips thru-bolts with blank head on one side
Minimum size: 4″” x 4″”
Maximum size: Based on door and glazing configuration
Door cutout: Order size (W × H)
Glazing size: Order size minus 1/4″”
Exposed glazing: Order size minus 1″”
Compatible glazing: Standard commercial glazing options
Optional materials: Galvanneal steel, zinc-plated steel
Optional fasteners: Torx screws
Installation: Thru-bolt mounting design

Downloads

Download Vision-Lite-VLFS10-Submittal.pdf