Tender For corrigendum : supply of d. s. cat no. 5305-003152, screw machined csk head m5 x 12 mm long to specn. is: 1365 , nut plain hex: precision steel 8 phosphated, m6 to is: 1364 , pin cotter split steel phos. 6. 3x71mm to is: 549-1974. , rivet flat head dia 5mmx65mm long to specn is: 2155-1982 , socket spanner double-ended to ds cat no. 5120-004555.