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ROOF SUPPORT MATERIAL - All components of rile roof bolt assembly shall comply <br />with the American National Standards Institute "Specifications for Roof Rotting <br />Materials in Coal Mines." (ASTA1 F432-78) <br />ROOF AND RIB MATERIALS - ROOF BOLTS, STEEL ARCAES, AND TRUSS BOLTS <br />MANUFACTURER: Kaiser Steel, CFI, <br />Dupont, Virginia Birmingham, DOSCO, <br />S[ratabolt, Commercial Shearing, <br />Texas Birmingham Bolt Co., Pattin West, <br />H b H (Delta, CO), Dywidag, Western <br />Support System <br />TYPE OF STEEL Open Hearth or Electric <br />Furnace Bethel <br />MANUFACTURER'S DESIGNATION Resin and <br />Steel Arches and Truss Rolts <br />MINIMUM LENGTH 48 inches <br />DIAMETER 3/4 inch <br />TYPE OF THREAD N/A <br />TYPE OF HEAD All (Standard) <br />LENGTH OF THREAD N/A <br />N/A. Also resin <br />DIMENSIONS OF BOLT HEAD: NUT 1-]/8 inch <br />bolts (f7-718" (minimum), resin cartridge diameter 1-1 /4" (minimum), drill hole <br />size 1-3/8" (maximum). <br />BEARING PLATES <br />MANUFACTURER: Kaiser Steel, CFI, <br />Virginia Birmingham, Texas Birmingham <br />Bolt Co., Dupont, U.S. Steel, D(ikco <br />Inc., Clearfield Manufacturing, Gates <br />City Steel, H b H (Delta, CO), <br />Innovative Industries Inc., Commercial <br />Shearin¢. Pattin West <br />MANUFACTURER'S DESIGNATION N/A <br />DIMENSIONS 6"X 6"X Plates, 4"X4" used only vith vood block or steel mat, 6"X16" <br />SHAPE Donut embossed, Bell embossed, CENTER HOLE SIZE 1" nominal for resin <br />Flat, Rib embossed __ bolts <br />ANCHORAGE UNIT <br />MANUFACTURER Celtite, Carbo]ov Dupont, MANUFACTURER'S DESIGNATION Resin <br />Atlas cartridges <br />TYPE Full Resin, Point Resin SIZF. OF FINISHED HOLE 1" <br />METHOD OF DRILLING Rotary DUST CONTROL Water, Vacuum and <br />INSTALLED TORQUE None (See Ventilation <br />installation procedures) <br />Page Four <br />Initial 12/09/86 <br />Revised 07/27/87 <br />