Burns 7949 Automatic Flush Bolt with Bottom Fire Bolt is a locking mechanism designed for wood doors. It features a bottom fire bolt that activates at 230 degrees F, locking the leaves together. Top Bolt overall length: 8-1/2", Top Bolt width: 1", Bottom Fire Bolt overall length: 1-25/32", Bottom Fire Bolt width: 1". Mounting options can be specified when ordering.
Automatic Flush Bolt with Bottom Fire Bolt - Wood Door
Features: Bottom Fire Bolt eliminates the bottom automatic flush bolt and dust proof strike BFB projects a bolt when subjected to 230 degrees F - locking the leaves together UL listed Single Non-Handed Automatic Top Flush Bolt for Metal Door with Bottom Fire Bolt
Finishes: US3/605 – Bright Brass US4/606 – Satin Brass US10B/613 – Dark Bronze US32/629 – Bright Stainless Steel US32D/630 – Satin Stainless Steel
Material: Brass or Stainless Steel
Size: Top Bolt: 1" × 8-1/2" Bottom Fire Bolt: 1" x 1-25/32" face plate - Drill 7/8" diameter hole in inactive door, 1" diameter hole in active door