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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 ...
ASTM F568M is an ASTM International standard for metric bolts, screws and studs that are used in general engineering applications. It is titled: Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners. It defines mechanical properties for fasteners that range from M1.6 to 100 in diameter. The standard was ...
Fasteners – Part 29: Technical specifications; Product grades for parts for bolted connections for use at temperatures ranging from −200 °C to +700 °C: Withdrawn: DIN 267-30: Fasteners – Part 30: Technical specifications; Metric thread rolling screws of property class 10.9: Active: DIN 276-1: Building costs; Part 1: Building ...
Either method leaves only a smooth bolt head exposed. This type of bolt is commonly used with prison door locks, automobile ignition switches, and street signs, to prevent easy removal. An alternative design leaves a low-profile button head visible after installation. [72] In addition to breakaway bolts, breakaway nuts of similar design are ...
Elevator bolt - Bolt with a large flat head used in conveyor system setups. Hanger bolt - Bolt that has no head, machine threaded body followed by a wood threaded screw tip. Allow nuts to be attached to what is really a screw. Hex bolt - Bolt with a hexagonal head and threaded shank. Section immediately under head may be unthreaded for ...
Because electrolytically zinc-plated surfaces provide comparatively little corrosion protection, and in the case of galvanic zinc coatings on high-strength steel (e.g. category 10.9 and 12.9 high-strength bolts) there is a risk of hydrogen embrittlement, the industry needed a better corrosion protection system.
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]
SAE Grade 0 [48] Strength and hardness is not specified SAE grade 1 ASTM A307 [49] Low carbon steel 1 ⁄ 4 – 1 + 1 ⁄ 2: 33 230 60 410 B70–100 ASTM A307 - Grade B [49] Low or medium carbon steel 1 ⁄ 4 –4 60 minimum 100 maximum 410 minimum 690 maximum B69–95 SAE grade 2 Low or medium carbon steel 1 ⁄ 4 – 3 ⁄ 4: 55 380 57 390 74 ...