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Weights for ASME B16.5 Class 300 Flange Bolts

Weight Chart for DIN 9021

Bolt & Stud Bolt Diameter and Length for ASME B16.5 Class 300 Flanges

Nominal Pipe Size, NPS Diameter of Bolts, in. Length of Bolts, L
Stud Bolts Machine Bolts
2mm Raised Face Ring Joint 2mm Raised Face
1/2 1/2 65 75 55
3/4 5/8 75 90 65
1 5/8 75 90 65
1 1/4 5/8 85 95 70
1 1/2 3/4 90 100 75
2 5/8 90 100 75
2 1/2 3/4 100 115 85
3 3/4 110 120 90
3 1/2 3/4 110 125 95
4 3/4 115 125 95
5 3/4 120 135 110
6 3/4 120 140 110
8 7/8 140 150 120
10 1 160 170 140
12 1 1/8 170 185 145
14 1 1/8 180 190 160
16 1 1/4 190 205 165
18 1 1/4 195 210 170
20 1 1/4 205 220 185
24 1 1/2 230 255 205

Weights are in kilograms per 1,000 pieces unless otherwise specified. All weights are approximations and strictly informative.

  1. Dimension of Table 7 are in Millimeters, except for diameters of bolts and bolts holes, which are in inch units.

  2. Length of stud bolts does not include the height of the points.

  3. Bolt lengths not shown in table may be determined in accordance with Annex D.