supply of set of items for alco loco vertical shock absorber bottom chair to couple with equaliser beam 1 ) hex head bolt- m24 ( 3.0 ) x 160 mm length with min threaded length of 70mm, with 3.0mm hole at threaded end ( 5.0mm away from end ) , grade 8.8 or above --qty: 100 nos; 2 ) nylock nut: m24 ( 3.0 ) , gr 8 or above -- qty: 100 nos; 3 ) flat washer: m24 --qty: 100 nos; 4 ) spring washer ( flat section ) : m24 --qty: 100 nos. make: tvs / unbraco / bimco only note-test certificate ( tc ) & warranty certificate ( wc ) is also required from supplier [ warranty period: 30 months after the date of delivery ]