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Sheet Drawing No. HILTI, Inc. Date Scale HWD 1 of 2 7/64" = 1" UL/cUL SYSTEM NO. HW-D-0539 ASSEMBLY RATING = 1-HR. OR 2-HR. CLASS II MOVEMENT CAPABILITIES - 50% COMPRESSION OR EXTENSION L-RATING AT AMBIENT = LESS THAN 1 CFM / SQ FT L-RATING AT 400°F = LESS THAN 1 CFM / SQ FT TOP OF WALL JOINT : GYPSUM WALL ASSEMBLY A A FRONT VIEW Tulsa, Oklahoma USA (800) 879-8000 MAX. 1 1/2" MIN. 2 1/2" MAX. 3" 1B 1A 2 3 5 6 7 8 SECTION A-A 0539e Jan. 31, 2014 HWD0539e.013114