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A common question is whether stainless steel is stronger that a grade 5 or grade 8 bolt. stainless commonly comes in grades 18.8 (304) or t316. stainless steel bolts are rated for corrosion resistance. bolt strength is rated in psi (pounds per square inch). a stainless steel bolt has the same psi rating as a grade 5 bolt (125,000 psi). a grade ...

1/4 in.-20 zinc plated tee nut (4-pack) tee nuts are threaded fasteners with prongs tee nuts are threaded fasteners with prongs that dig into the material when tightened. they are a good alternative to wood screws where movement and vibrations are a concern. often used for casters, chairs, beds, and cabinetry.

The preload or thread tension in a fastener is higher with grade 8 quality steel. therefore, grade 8 is typically used for threaded bolts in demanding applications such as automotive suspensions for large trucks and tractors. this table shows the mechanical properties of b7 and grade 8: grade. astm a193 b7.

- hexagon nuts din 555 and din 934 and castle nuts din 935 made from free-cutting steel shall additionally be marked with a groove in one face (fig. 12) fig. 3 t-047left-hand thread shall be marked with a left turning arrow on one bearing surface or a groove halfway up the nut height (fig. 3)

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