Technical Requirements For Parallel Groove Clamps

single bolt parallel groove connector General technical conditions shall comply with the provisions of GB2314-85 "General Technical Conditions for Power Fittings".
pg clamps Material and fasteners:
pg clamp connector Iron body and pressure plate shall be made of forgeable cast iron in accordance with GB978-67 "Classification and Technical Conditions for Forgeable Iron Castings";
b. Aluminum body and pressure plate shall be made of ZL-102 aluminum silicon alloy in accordance with GB1173-74 "Casting Aluminum Alloy";
c. Bolts shall be made in accordance with GB 5-76 "Hexagonal Bolts (Rough)";
d. Nuts shall be made in accordance with GB 41-76 "Hexagonal Nuts (Rough)";
e. Washers shall be made in accordance with GB 95-76 "Washers (Rough)";
f. Spring washers shall be made in accordance with GB 93-76 "Spring Washers".