Reference Guides

 

DIN 6921 Hex Flange Bolts (d6921.pdf):

Detailed specifications of DIN 6921 hex flange bolts, including size, thread pitch, dimensions, material composition, tempering temperature, tensile strength, hardness, and plating options. The bolts are primarily used in truck chassis frames and are designed to eliminate the need for a washer by distributing clamp load over a wide area .

 

Nuts Threads (nutsthreads.pdf):

Specifications of internal threads for Class 2B nuts as per ASME B1.1 standards, covering thread dimensions, pitch, diameter tolerances, and size designations. It provides a comprehensive breakdown of minor, pitch, and major diameters for UNC, UNF, and UNS threads ranging from 0-80 to 4-4 threads per inch .

 

Socket Set Screws (socketssetscr.pdf):

Comprehensive data on various types of socket set screws, including cup point, half-dog point, oval point, flat point, and cone point. The document specifies the material composition, hardness, torque specifications, and applications for each type of screw. It also includes dimensional data for socket sizes, lengths, and recommended tightening torque values