supply of set of square head screw as per is:1367 /2002.set of square head screw as per is:1367 /2002.,set of square head screw as per is:1367 /2002. (1) m6x35 with one spring washer to is:3063 , and one flat washer to is: 2016 and 2 nuts to is: 1367, part iii, thread length of screw is 25mm. head is 1 0mm x 10mm, thickness 3.8mm : 1 no/set (2). m6x25 with one spring washer to is:3063, one flat washer t o is: 2016, 02 nuts to is:1367. thread length of screw should be 15mm. head is 10mmx10mm, with thickn ess 3.8mm.- 1 no /set. (grade 8.8) all item should be galvanized. (acceptable makes for spring washer - m/ s. forbes & forbes- bbbb (or) unbrako only). [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]