expansion bolt anchor fixed bolt expansion 3pcs 4pcs fixed anchor bolt three pieces four pieces expansion screw

expansion bolts are classified into: 45, 50, 60, 70, 80,

expansion screw material: mainly divided into austenite a1, a2, a4,

martensite and ferrite c1, c2, c4,

no. 45 steel, for important or special purpose thread coupling, 15cr ,20cr,40cr,15mnvb,30crmrsi and other alloy steel with higher mechanical properties can be selected.

select different expansion screws according to the actual situation of the wall. generally, there are the following 6 × 60, 6 × 80, 6 × 120, and 6 × 150.

6 × 60: total length 60 mm, casing length 45 mm, diameter 8mm, wall thickness 0.7mm, surface plated color zinc; screw length 60 mm, diameter 6 mm, thread part 35 mm, the bottom rod hammer is 8mm conical, with a surface of plated color zinc; the nut outer diameter is 10 mm octagonal, thickness is 5 mm, and the surface is white zinc plated; the gasket outer diameter is 13 mm, thickness is 1mm, inner diameter is 6 mm, the surface is plated with white zinc; the shrapnel is a ring with an outer diameter of 9mm, an inner diameter of 6mm and a thickness of 1.6mm.

6 × 80: the total length is 80mm, the casing length is 65mm, the diameter is 8mm, the wall thickness is 0.7mm, and the surface is plated color zinc; the screw length, nut, gasket and shrapnel are the same as above.

6 × 120: total length 120mm, casing length 105mm, diameter 8mm, wall thickness 0.7mm, surface is plated color zinc; screw length, nut, gasket, shrapnel are the same as above.

6 × 150: total length 150mm, casing length 135mm, diameter 8mm, wall thickness 0.7mm, surface is plated color zinc; screw length, nut, gasket, shrapnel are the same as above.

expansion bolt grades :45, 50, 60, 70, 80

expansion screw material: main austenite a1, a2, a4

martensite and ferrite c1, c2, c4

45 steel, for important or special purpose threaded connection, can choose 15cr, 20cr, 40cr, 15mnvb, 30crmrsi and other alloy steel with higher mechanical properties.

select different expansion screws according to the actual situation of the wall. generally there are the following kinds of 6×60, 6×80, 6×120, 6×150.

6×60 the total length is 60mm the casing length is 45mm the diameter is 8mm the wall thickness is 07mm the surface is coated with colored zinc screw length 60mm diameter 6mm thread part 35mm the bottom rod hammer 8mm conical the surface is painted zinc plating the nut is octagonal with an outer diameter of 10mm and a thickness of 5 mmthe surface is white zinc plated gasket outer diameter 13mm thickness 1mm inner diameter 6mm surface coated with white zinc the shrapnel is a ring with an outer diameter of 9mm an inner diameter of 6mm and a thickness of 16mm

6×80: the total length is 80 mm, the casing length is 65 mm, the diameter is 8mm, the wall thickness is 0.7 mm, the surface is coated with colored zinc; screw length, nut, gasket, shrapnel as above.

6×120: the total length is 120mm, the casing length is 105mm, the diameter is 8mm, the wall thickness is 0.7mm, and the surface is coated with colored zinc; screw length, nut, gasket, shrapnel as above.

6×150: the total length is 150mm, the casing length is 135mm, the diameter is 8mm, the wall thickness is 0.7mm, the surface is coated with colored zinc; screw length, nut, gasket, shrapnel as above.