| 摘要 |
#CMT# #/CMT# A screw secures a roof insulation fixture. The fixture is a tapered plastic sleeve with an integral horizontal rim, which in turn locates within a surrounding countersink tilt collar. Plastic sleeve has an internal countersunk shoulder with a raised collar holding the screw head edge clear of the surrounding sleeve shaft. #CMT#USE : #/CMT# Roof fixture to anchor thermal insulation panel. #CMT#ADVANTAGE : #/CMT# The countersink tilt collar may be tilted with respect to the screw. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a suitable screw. 1 : Screw 2 : self-tapping thread 3 : screw head 4 : tip 5 : cruciform screw head. |
