british standard unc thread bolts and nuts product bolts, nuts and washesthread uncstandard british standardfinish zinc plated steelsize length ( inch ) 3/8 inch 1.0 1.5 2.0 2.5 3.0 3.5 4.01/2 inch 1.0 1.5 2.0 2.5 3.0 3.5 4.03/4 inch 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.01.0 inch 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0quantity container loadprice c&f sydney, australiasample required5 woodlands ave, breakfast point, sydney, nsw, australiacontact person mr. michael ouyangtelephone 61-2-96361100fax 61-2-96363100