According to ISO 898-1 the bolts are characterized depending on their pitch thread: The nominal diameter d is specified in mm as part of the bolt designation, e.g. Applications and Design The difference between a gr8 bolt and gr8 hex cap screw is technically tolerance, in which hex cap screws have a tighter tolerance. 1/4 thru 1-1/2. Electronics Instrumentation Note: Manufacturer's identification mark are also stamped when applicable. They bear no head markings and are made from low or medium carbon steel. Or, contact me via email (fix the punctuation). Loading Capacities of Ordinary Bolts per. Our Big List of over 200 CNC Tips and Techniques. Beam Deflections and Stress Bearing Apps, Specs & Data per square inch. -->, Engineering ANSI Hardware Design Data 400 MPa for classes 4.x, 500 MPa for classes 5.x, 600 MPa for classes 6.x, 800 MPa for classes 8.x, and 1000 MPa for classes 10.x. Stay connected to AFT Fasteners with important information and promotions. 2022.3.28. Bearing (Ply) Thickness Passed Through, mm . BS449: Part 2 Bolt Grade 4.6, Loading Capacities of Ordinary Bolts per. FFR2710: 400+RWHP, Vortech blown all Trick Flow 302, 3.27 IRS, Cobra R\'s, Tremec. Bearing values assume standard clearance holes. The width of the hexagon nuts across flats s is specified in ISO 898-2 Table A.1 for bolt sizes M5 to M39. All rights reserved. -->, Engineering ISO Metric Hardware Design Data (Black): Bearing > Single Shear; Heat Transfer While the typical grade 8 bolt has a tensile strength of 150,000 PSI, a grade 9 bolt has a tensile strength of 180,000PSI. They are made of medium carbon alloy steel and have 6 line marks on the head. Thus, the larger the bolt, the stronger the tensile strength of the bolt. SAE Grade 8 (A5 2465 High Tensile Steel) 150000: 1034: Class 10.9 (A5 1110 High Tensile Steel) Stainless Steel Class 100: 1000: Stainless Steel Class 100 (e.g. A variety of Grade 8 bolts are available from Lighting Bolt & Supply. All grade 8 bolts have the same tensile strength per square inch. Fastener Bolt Thread Stress Tensile Area Table Chart for ANSI Inch Size . They are more affordable but lack the strength needed for structural applications. Definition of bolt classes 4.6, 4.8 etc. These have high torque capacities with high tensile strength ranging above 500MPa. Technically, grade 8 items are most commonly sold as hex cap screws under the SAE J-429 specification, although many people just call them grade 8 bolts.