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3. Spacer washers or bushings. When spacer washers or bushings are required, they shall have the same inside <br /> diameter and equal or larger outside diameter as the appropriate hardened washers conforming to the <br /> requirements in ASTM Designation: F436. <br /> 4. Steel plate or girder with a hole to install bolt. The hole size shall be 1.6 mm greater than the nominal diameter <br /> of the bolt to be tested. The grip length, including any plates, washers, and additional spacers as needed, shall <br /> provide the proper number of threads within the grip,as required in Step 2 of the Short Bolt Test Procedure. <br /> B. Short Bolt Test Procedure: <br /> 1. Measure the bolt length. The bolt length is defined as the distance from the end of the threaded portion of the <br /> shank to the underside of the bolt head. <br /> 2. Install the nut on the bolt so that 3 to 5 full threads of the bolt are located between the bearing face of the nut <br /> and the underside of the bolt head. Measure and record the thread stickout of the bolt. Thread stickout is <br /> determined by measuring the distance from the outer face of the nut to the end of the threaded portion of the <br /> shank. <br /> 3. Install the bolt into a hole on the plate or girder and install the required number of washers and additional <br /> spacers as needed between the bearing face of the nut and the underside of the bolt head to produce the thread <br /> stickout measured in Step 2 of this procedure. <br /> 4. Tighten the nut using a hand wrench to a snug-tight condition. The snug condition shall be the full manual <br /> effort applied to the end of a 305 mm long wrench. This applied torque shall not exceed 20 percent of the <br /> maximum allowable torque in Table E. <br /> Table E <br /> Maximum Allowable Torque for High-Strength <br /> Fastener Assemblies <br /> Bolt Diameter Torque <br /> inches ft-lbs <br /> 1/2 145 <br /> 5/8 285 <br /> 3/4 500 <br /> 7/8 820 <br /> 1 1220 <br /> 1 1/8 1500 <br /> 1 1/4 2130 <br /> 1 3/8 2800 <br /> 1 1/2 3700 <br /> 5. Match-mark the assembly by placing a heavy reference start line on the steel plate or girder which aligns with <br /> 1)a mark placed on one corner of the nut and 2)a radial line placed across the flat on the end of the bolt or on <br /> the exposed portions of the threads of tension control bolts. Place an additional mark on the outside of the <br /> socket that overlays the mark on the nut corner such that this mark will be visible while turning the nut. Make <br /> 2 additional small marks on the steel plate or girder, one 1/3 of a turn and one 2/3 of a turn clockwise from the <br /> heavy reference start line on the steel plate or girder. <br /> 6. Using the torque wrench,tighten the nut to the rotation value listed in Table F. The rotation is measured from <br /> the heavy reference line described in Step 5 made after the bolt was snug-tight. A second wrench shall be used <br /> to prevent rotation of the bolt head during tightening. Measure and record the moving torque after this rotation <br /> has been reached. The torque shall be measured with the nut in motion. <br /> Contract No. 10-OM7104 <br /> 171 <br />