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DIN7504 SUS Hex Washer Head Self Drilling Screw Material: stainless steel (410, 304, 316) Finished: plain Apply: iron plate + steel frame; steel frame + steel frame Hex washer head SIZE(mm)LENGTH(inch)DIALENGTHPOINT.NOMATERIALTHICKNESS(mm)#8-18×131/2″4.213#23—4#8-18×165/8″16#8-18×193/4″19#8-18×251″25#8-18×321-1/4″32#8-18×381-1/2″35#8-18×502″50#10-16×131/2″4.813#34—6#10-16×165/8″16#10-16×193/4″19#10-16×251″25#10-16×321-1/4″32#10-16×381-1/2″38#10-16×502″50#12-14×381-1/2″5.5/6.338#34—8#12-14×45″45#12-14×502″50#12-14×652-1/2″65#12-14×753″75#12-14×1255″125#14-14×193/4″6.319#34—12#14-14×251″25#14-14×321-1/4″32#14-14×381-1/2″38#14-14×502″50#14-14×652-1/2″65#14-14×753″75#14-14×903-1/4″90#14-14×1004″100#14-14×1255″125Packing: standard export packing or as request Advantages: 1) High quality in competitive price 2) Prompt delivery 3) Various types of long- term supply professinal stainless steel fasteners 4) Super Strong; Super Sharp; Super Anticorrosion