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This standard defines property classes, the metric equivalent of a screw grade, that are almost identical to those defined by ISO 898-1, [2] except for the addition of the 8.8.3 and 10.9.3 classes. These two additional standards are fasteners that have the same mechanical properties as their base property class (i.e. 8.8 and 10.9), but are made ...
ASTM A490 and ASTM A490M are ASTM International standards for heavy hex structural bolts made from alloy steel.The imperial standard is officially titled Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength, while the metric standard (M) is titled Standard Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural ...
ISO 898 is an international standard that defines mechanical and physical properties for metric fasteners. This standard is the origin for other standards that define properties for similar metric fasteners, such as SAE J1199 and ASTM F568M. [1] It is divided into five (nonconsecutive) parts: 1.
The spline drive was part of the obsolete, U.S-designed Optimum Metric Fastener System and was defined by ASTM B18.2.7.1M, which was withdrawn in 2011, [83] making the spline drive obsolescent. Spline drives were specified for 5, 6.3, 8, 10, 12, 14, 16, and 20 mm size screws. [ 84 ]
Class 4.8 Low or medium carbon steel; fully or partially annealed 1.6–16 310 45 340 49 420 61 B71–95 Class 5.8 Low or medium carbon steel; cold worked 5–24 380 55 420 61 520 75 B82–95 Class 8.8 [43] Medium carbon steel; quench and tempered Under 16 (inc.) 580 84 640 93 800 120 17–72 600 87 660 96 830 120 C23–34 Class 8.8 low carbon
ISO Metric Trapezoidal Screw Thread; Allowances and Tolerances for Trapezoidal Screw Threads of General Purpose: Active: DIN 103-4: ISO Metric Trapezoidal Screw Thread; Nominal Dimensions: Active: DIN 103-5: ISO Metric Trapezoidal Screw Threads; Limiting Sizes for Nut Threads from 8 to 100 mm Nominal Diameter: Active: DIN 103-6
Thrust-specific fuel consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output. TSFC may also be thought of as fuel consumption (grams/second) per unit of thrust (newtons, or N), hence thrust-specific.
For 1999 a limited run of V8 powered "G 500 Classic" special editions marked the model's 20th anniversary. A multifunction steering wheel was added to all models. Later in the year, the new G 55 AMG debuted as the most powerful G-Class yet, with 354 hp. The U.S. market launch of the G-Class took place in 2001.