Nov 03, 2014 · don’t let the melting aluminum interfere with the weld pool; this will cause porosity. you can weld aluminized tubing with gas metal arc welding (gmaw) using er70-s6 mild steel filler metal and 75 percent argon/25 percent oxygen shielding gas, but this will leave the finished weld zone unprotected because the aluminum will be burned away.
Astm f436 hot dip galvainzed carbon steel high tensile large flat washer. flat washer,which is called plain washer, mainly punched out from iron plates. the common shape of a flat washer is a hole in the central. the pore size specifications according to customer requirements. we can produce as customs request.
Din 965cross recessed countersunk flat head screws current norm: din en iso 7046-1, 7046-2 equivalent norms: iso 7046; csn 021152; pn 82208; uni 7688;
Choose from our selection of metric shoulder bolts, including over 1,400 products in a wide range of styles and sizes. ... the metric-sized threads on these screws are the same diameter as the shoulder. comparable in strength to class 12. 9 steel. metric 18-8 stainless ... these metric screws have a head height that's about two-thirds the head ...
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