Set of Hex. Head Bolt Size: M10 x 40mm Phosphate coated & Full threaded as per IS: 1364 part- 2, grade: 8. 8, along with suitable two flat washers as per IS: 2016 and two spring washers as per IS: 3063 for Line contactors. Makes: TVS/ LPS/ Unbrako/ BMI/ DFL. Note: 1 ) One sample set should be got approved before effecting bulk supply. 2 ) Firm must mention the specific make of the offered material while participating in the tender, otherwise such offers are liable for rejection.