GAPGUARD FDTB Fire-Rated Thru-Bolts to Fill Open Holes, Box of 20ea. Corbin Russwin Exit Device Trim Operating Voltage: 24VDC Filtered and

Operating Voltage: 24VDC Filtered and Regulated

Effectively reducing the infiltration of light

Auxiliary latch bolt

HEIGHT: 1/2”

Onboard lock sequencing

GAPGUARD FDTB Fire-Rated Thru-Bolts to Fill Open Holes, Box of 20ea. Corbin Russwin Exit Device Trim Operating Voltage: 24VDC Filtered andNGP GAPGUARD THRU BOLTS, FDTB Fits 1 3 4" to 2" Thick Doors Zinc Plated Steel Sleeve with Machine Screws Meets requirements of NFPA 80 for Use on Fire Doors Use to Fill Holes in Wood or Steel Fire Doors to Protect Label Compliance Available in Boxes of Twenty 3 8" or 1 2" diameter Part Numbers FDTB 38 (3 8" Thread Size 1 4 20) FDTB 12 (1 2" Thread Size 5 16 18)