S e c t i o n 1 - P a g e 6 May 2013 Installation Accessories Stelpipe Rock Bolts Nuts • for 3 / 4 " thr ead: A.F . = 1 1 / 8 " squar e T = 0.8" • for 1 thr ead: A.F . = 1 5 / 8 " hex T = 6 3 / 6 4 " Expansion Shells • for 3 / 4 " thr ead (model F1 1 / 4 B): L = 3 1 / 4 " O = 1 1 / 4 " (32 mm) hole size • for 1 thr ead (model F9F): L = 3 1 / 4 " O = 1 3 / 4 Har dened Round W ashers • to ASTM F436 specifcations • for 3 / 4 " thr ead: I.D.= 1 3 / 16 ", O.D. = 1 1 5 / 32 ", T = 0.122 to 0.177" • for 1 thr ead: I.D. = 1 1 / 8 ", O.D. = 2", T = 0.136" to 0.177" Spherical Seat (Compensation) W ashers • ductile ir on ASTM A536 G r. 65-45-12 • for 3 / 4 " thr ead: I.D. = 1 3 / 16 ", O.D. = 2", H = 1 3 / 16 " (model TSW-4) I.D. = 1 5 / 16 ", O.D. = 2", H = 1 / 2 " (model TSW) • for 1" thr ead: I.D. = 1 1 / 16 ", O.D. = 2", H = 1 / 2 " (model TSW-1) Installation T ools - for Stopers/Jacklegs • 1 1 / 8 " squar e nutrunner (for 3 / 4 " bolts) • 1 5 / 8 " hex nutrunner (for 1" bolts) • available with 7 / 8 " hex socket or 3 1 / 4 " long 7 / 8 " hex shank www .dsiundergr ound.com