Threaded rod
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. A threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod. They are designed to be used in tension. Threaded rod in bar stock form is often called all-thread (ATR); other names include fully-threaded rod, redi-rod, continuously-threaded rod, and TFL rod. Galvanized steel, mild steel, stainless steel, nylon, brass, copper, aluminum, and titanium are all commonly used to make threaded rods.
.]] A threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod. They are designed to be used in tension. Threaded rod in bar stock form is often called all-thread (ATR); other names include fully-threaded rod, redi-rod, continuously-threaded rod, and TFL rod. Galvanized steel, mild steel, stainless steel, nylon, brass, copper, aluminum, and titanium are all commonly used to make threaded rods. P = \frac{0.33 F_\text{u} \pi d^2}{4}, where d is the nominal diameter, and F u is the ultimate tensile strength of the material. For undercut threaded rods the allowable tensile stress is defined as P = \frac{0.6 F_\text{y} \pi d_\text{s}^2}{4}, where d s is the diameter of the shank, and F y is the yield strength of the material. Both equations give units of force for the result, i.e. pounds-force or newtons. Unmarked — 4.6 class (tensile strength = 400 N/mm 2 , yield strength 240 N/mm 2 ) Yellow — 8.8 class (800 N/mm 2 , 640 N/mm 2 ) Green — A2 stainless steel (304) Red — A4 stainless steel (316) White — 10.9 class (1000 N/mm 2 , 900 N/mm 2 )
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