www.changlin.com.cn Capscrew Markings and Torque Values Caution: When replacing capscrews, always use a capscrew of the same measurement and strength as the capscrew being replaced. Using incorrect capscrews can result in engine damage. Metric capscrews and nuts are identified by the grade number stamped on the head of the head of the capscrew or on the surface of the nuts. U.S. Customary capscrews are identified by radial lines stamped on the head of the capscrew. The following examples indicate how capscrews are indentified: Notes: 1. Always use the torque values listed in the following tables when specific torque values are not available. 2.
Do not ues the torque values in place of those specified in other sections of this manual. 3. The torque values in the table are based on the use of lubricated threads. 4. When the ft-lb value is less than 10, give consideration to converting the ft-lb value to in-lb to obtain a better Millimeters. 148 / 149 pages Metric (M8‐1.25x25) M8 1.25 2 5 Major Distance L ength Thread Between in Diameter in Threads in M illimeters Millimeters U. S. Customary (5/16x8x1 1/2) 5/16 18 1 1/2 Major Number Length Thread Threads in Diameter in Per inch inchs In inches