3M B258 Firestop Block, 8 in Overall Lg, 5.12 in Overall Wd, Block, 2 hr, 12 PK 40GL40 the wheel features telescoping bushings

the wheel features telescoping bushings to fit most arbor hole sizes and works well for offhand grinding applications

For Use With Lockers

2% + 2) +/-(0

Metric: 4mm

3M B258 Firestop Block, 8 in Overall Lg, 5.12 in Overall Wd, Block, 2 hr, 12 PK 40GL40 the wheel features telescoping bushingsFirestop Block, Fire Rating 2 hr, Fire Resistance Type Fitted Barrier, Firestop Type Block, Interlocking Not Applicable, Overall Height 2. 36 in, Overall Length 8 in, Overall Width 5. 12 in, Color Maroon, Features Installation Requires No Special Tools, No Cure Time, Primer Paint Ready: Block is Paintable with Primer, Fits Medium to Large Openings in Wall and Floor Through Penetrations, Tight Firestop Seal, Market Commercial, Standards ASTM E814 (UL