WebTorque Specifi cation Chart The following torque values are to be used on all fasteners unless otherwise specifi ed. Lubricated refers to ... GRADE 8 FINE THREAD BOLT size-pitch LUBRICATED WITH ANTI-SEIZE in-lbs Nm in-lbs Nm 1/4”-28 147 17 98 11 ft-lbs Nm ft-lbs Nm 5/16”-24 25 34 17 23 3/8”-24 45 61 30 41 WebNov 5, 2024 · Chart for easy comparison of US / Metric screws and bolts. It is always a bit unusual to compare them as they use different measurement systems (PSI vs. Mpa). 180,000. SAE Grade 8- 150,000. SAE Grade 5 - 120,000. 116,000. 101,530. 75,420. SAE Grade 2 - 74,000.
SAE Bolt Torque Chart – Grade 2, Grade 5, Grade 8
WebFor example, I can't imagine a 1/4" bolt failing at these loads. To test, I just screwed a plain old hex-head 1/4 x 3 1/2 screw into the bottom of my workbench, with about 2 1/2" left visible, and the head holding up a long piece of angle iron. WebClass 4.6 Class 8.8 Class 10.9 Class 12.9 Nominal Dia. (mm) Pitch Tightening Torque Tightening Torque Tightening Torque Tightening Torque The torque values can only be achieved if nut (or tapped hole) has a proof load greater than or equal to the bolt's minimum ultimate tensile strength. Clamp loads estimated as 75% of proof load for specified ... incompatibility แปลว่า
What Are the Different Grades of Bolts? Hunker
WebMade from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. The flange distributes pressure over the surface, eliminating the need for a washer. WebProperty classes (grades) are defined by ISO 898 (Mechanical properties of fasteners made of carbon steel and alloy steel). This table shows values for threads that have been lightly oiled and the tension is 85% of the proof load. Size (mm) Recommended Maximum Tightening Torque (Nm) Grade 8.8. Grade 9.8. Grade 10.9. WebSep 12, 2024 · Metric Bolt Grades Chart with Strength Chart The most common bolt grades are 8.8, 10.9, and 12.9. What Are These Numbers? Bolts are made at different … inches spice