CRL 1/2"-13 x 1" Thread Protecting Nylon Allen Screws for the HRS System Hinges | Patches -FHC End Cap for Smoke Baffle

End Cap for Smoke Baffle

Steel Weld Blocks Eliminate the Need to Drill and Tap in the Field

Delivers Optimum Performance in Concrete

Matte Black

52 mm – 21

CRL 1/2"-13 x 1" Thread Protecting Nylon Allen Screws for the HRS System Hinges | Patches -FHC End Cap for Smoke BaffleProtect Threaded Holes from Concrete Contamination CRL Thread Protecting Nylon Allen Screws are used to protect the threaded holes in steel attachments from concrete contamination, and provide a clearance area behind the attachment. Simply insert the Nylon Allen Screws until the top is flush with the steel attachment. Cover with duct tape to protect the wrench opening. After the steel attachment is set in concrete, remove the tape and Nylon Allen