You can usually figure out the grade, or strength, of a bolt by looking at the markings on its head. English bolts (U.S.S. or S.A.E) are categorized by grade, from grade 2 to grade 8, where the grade represents inch strength. The higher the grade, the stronger the bolt. ...
Bolt with over-stress indicator - has markings on shank near head and near screw threaddoi:DE4016729The bolt (1) has a hexagonal head (2) at one end and a screw thread at the other end, with a plain part (4) of the shank between the screw thread and the head. The surface of ...
Determine the grade of the bolt. The grade describes the grade of metal or the type of material used to manufacture the bolt. The grade of the bolt may be indicated by markings on the head. In the example, Grade 2 signifies a soft steel was used to make the bolt. Step 5 Look at t...
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• Special Markings on products• Special packagingThe company adopts ISO9001:2000 quality management system.Company tenet:quality first,customer first,integrity and innovation.We believe that we can establish long-term and stable friendly...
Hex Bolt Identification, Markings and Strength Chart. Additonal information on bolts is located at the bottom of the webpage.Note: Some bolts share identical head identification and have significantly different strengths.Identification Grade Mark Specification Description Material Proof Load Yield Strength ...
The illustration below, depicts typical and common aircraft ( AN and NAS ) type bolts and their identifying markings.Click on image below to enlarge The three principal parts of a bolt are the head , grip , and threads , as shown below....
• Special Markings on products • Special packaging The company adopts ISO9001:2000 quality management system.Company tenet:quality first,customer first,integrity and innovation. We believe that we can establish long-term and stable friendly business relations with...
3.Can we have our product markings on it? Yes, we can add product markings according to your requirements. 4.How about packing? Woven bag,carton,plywood pallet or by customer requirements. Qingdao Xinquanxi Metal Products Co., Ltd.
Bolt and nut head markings and identification of correct components. The use of washers and lock washers. Nut/bolt combinations, nut strength versus bolt strength. The types of self-locking nuts and their usage. Torque Tightening What is meant by a tightening torque. Units used to measure torqu...