Metric Bolt Thread Size: Thread sizes for coarse and fine pitch thread were created using the standard sizes from ASME B1.13M.

The charts below show the ideal tightening torque for each bolt grade for a variety of sizes. The size column also includes the thread count. Identify the grade, size, and thread density of your bolts and refer to the tightening torque columns. The "wet" column indicates lubricated bolts, whereas the "dry" column indicated unlubricated bolts.

Hex Bolt Identification, Markings and Strength Chart. Additonal information on bolts is located at the bottom of the webpage. Membership Services. Specification: Description: Material: Proof Load: Yield Strength Min (psi) Tensile Strength Min (psi) SAE J429 Grade 5 ASTM A449: Bolts, Screws,

In this article, I have covered Flange Bolt Chart and Flange Stud Size. Diameter and Lengths of the stud and bolt are covered in flange standard ASME B16.5 

Bolts, Screws, Studs for High‐ Temperature Service CrMoVa Alloy Steel 1⁄4 thru 2 ½ Over 2 ½ thru 4 Over 4 thru 7 −− −− −− 105,000 95,000 85,000 125,000 115,000 100,000 SAE J429 Grade 1 No Grade Mark Bolts, Screws, Studs 60,000 Bolts, Screws, Studs ASTM A307 Grades A&B 60,000 STANDARD BOLT IDENTIFICATION MARKINGS

Historic Bolt Specifications. Specifications for Assembly of Structural Joints Using High Tensile Steel Bolts - 1951. Member: Free. Non-member: $10.00. Format: PDF. Specification for Structural Joints Using ASTM A325 or A490 Bolts - 2000. Member: Free. Non-member: Free. Format: PDF.

In standard bolt size charts, the thread pitch is the number of threads in one inch. In the metric system, it's the distance between two threads in 

Metric Nuts and Bolts are manufactured actually slightly below their specified size, for example an M16 bolt. M6 bolt size

Our cap screws can be customized to your application and industry. Please review all of our standard cap screw charts below and download the size charts.

Increased standard bolt hole diameter and slot widths for bolts 1-in. in diameter and greater (Table 3.1). 14. Table 8.1 Minimum Bolt Pretension moved to Table 5.2 in design. 15. Revised values for pre-installation verification testing and for pretensionfor Group 120 bolts larger than 1 in. diameter (Table 5.2).

The performance grades of bolts for steel structure connection are divided into more than 10 grades, such as 3.6, 8.8, and 12.9. Among them, bolt grade 8.8 and above are made of low-carbon alloy steel or medium carbon steel and are generally called high-strength bolts after heat treatment (quenching and tempering), and the rest are generally called ordinary bolts.