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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. Bolts, screws and studs with specified property classes – Coarse thread and fine pitch thread [2] 2. Nuts with specified proof load values – Coarse ...
ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1 ⁄ 2 to 1 + 1 ⁄ 2 inches (13 to 38 mm) in diameter. [1]
Metric thread stud bolts: Active: DIN 976-2: Metric interference-fit thread stud bolts: Active: DIN 977: Hexagon weld nuts with flange: Withdrawn: DIN EN ISO 21670: ISO 21670: DIN 979: Hexagon thin slotted nuts and castle nuts with metric coarse and fine pitch thread – Product grades A and B: Active: DIN 980: All-metal prevailing torque type ...
Spline drives were specified for 5, 6.3, 8, 10, 12, 14, 16, and 20 mm size screws. [84] Its primary advantage is its ability to resist cam-out, so it is used in high-torque applications, such as tamper-proof lug nuts, cylinder head bolts, and other engine bolts.
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 ...
Threaded barrels are often mounted to the receiver with a lot of torque, ... 3.8 mm depth countersink for the bolt head with a 17.9 mm diameter ... 1-1/8"-12 M30: 3.5 ...