One of the recommended 304L stainless steel fasteners manufacturers in India. ASTM A193 304L bolts are commonly used with flanges in industries. Stainless steel UNS S30403 nuts offer excellent forming and welding properties. SS WERKSTOFF NR. 1.4307 fasteners are available in ratings 150LB and 300LB, in slip-on, blind, threaded, and welding neck forms.