Tender Notice for Set of material traction alternator foundation bolt with washer, consist of: 1. Bolt Hex Head,Size: 1-1/2" - 6 TPI x 4- 1/4" Long to EMD Part No. 272572, Qty/set-1 No, 2. Washer Special,Size: 1-35/64" ID x 2-5/8" OD, 45 degree chamfer on both sides to EMD part No. 9334651, Qty/set -01 No. Material spec: 1. GM 280 - M - STEEL. 2. SAE 4140H STEEL , Temper to Rockwell ?C? 32-36. in West Bengal