BS 3974 NON- GRIPPED U-BOLTS
A = LEG CENTRES
B = STRAIGHT LEG LENGTH
C = THREAD LENGTH
D = THREAD DIA
E = INSIDE LENGTH
F = INSIDE RADIUS
G = INSIDE DIA/GAP

Description |
Pick Wall Location |
Nominal Bore |
Pipe O.D. (mm) |
Cost |
A (mm) |
B (mm) |
C (mm) |
D (mm) |
E (mm) |
F (mm) |
G (mm) |
Stud Length (mm) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
M8 x 15NB |
— |
1/2" |
21.3 |
— |
40.0 |
25.0 |
20.0 |
8.0 |
41.0 |
16.0 |
32.0 |
113 |
M8 x 20NB |
— |
3/4" |
26.9 |
— |
45.0 |
32.5 |
30.0 |
8.0 |
51.0 |
18.5 |
37.0 |
136 |
M8 x 25NB |
— |
1" |
33.7 |
— |
50.0 |
35.0 |
30.0 |
8.0 |
56.0 |
21.0 |
42.0 |
149 |
M8 x 32NB |
— |
1 1/4" |
42.4 |
— |
60.0 |
40.0 |
30.0 |
8.0 |
66.0 |
26.0 |
52.0 |
174 |
M10 x 40NB |
— |
1 1/2" |
48.3 |
— |
65.0 |
52.5 |
40.0 |
10.0 |
80.0 |
27.5 |
55.0 |
207 |
M10 x 50NB |
— |
2" |
60.3 |
— |
80.0 |
60.0 |
40.0 |
10.0 |
95.0 |
35.0 |
70.0 |
246 |
M12 x 65NB |
— |
2 1/2" |
76.1 |
— |
95.0 |
72.5 |
50.0 |
12.0 |
114.0 |
41.5 |
83.0 |
294 |
M16 x 80NB |
— |
3" |
88.9 |
— |
110.0 |
85.0 |
55.0 |
16.0 |
132.0 |
47.0 |
94.0 |
343 |
M16 x 100NB |
— |
4" |
114.3 |
— |
140.0 |
95.0 |
55.0 |
16.0 |
157.0 |
62.0 |
124.0 |
410 |
M16 x 125NB |
— |
5" |
139.7 |
— |
165.0 |
107.5 |
55.0 |
16.0 |
182.0 |
74.5 |
149.0 |
474 |
M20 x 150NB |
— |
6" |
168.3 |
— |
195.0 |
127.5 |
65.0 |
20.0 |
215.0 |
87.5 |
175.0 |
561 |
M20 x 175NB |
— |
7" |
193.7 |
— |
220.0 |
140.0 |
65.0 |
20.0 |
240.0 |
100.0 |
200.0 |
626 |
M20 x 200NB |
— |
8" |
219.1 |
— |
250.0 |
150.0 |
65.0 |
20.0 |
265.0 |
115.0 |
230.0 |
693 |
M20 x 225MN |
— |
9" |
244.5 |
— |
275.0 |
162.5 |
65.0 |
20.0 |
290.0 |
127.5 |
255.0 |
757 |
M20 x 250NB |
— |
10" |
273.0 |
— |
305.0 |
182.5 |
75.0 |
20.0 |
325.0 |
142.5 |
285.0 |
844 |
M20 x 300NB |
— |
12" |
323.9 |
— |
355.0 |
247.5 |
75.0 |
20.0 |
375.0 |
127.5 |
255.0 |
927 |
M24 x 350NB |
— |
14" |
355.6 |
— |
390.0 |
272.5 |
80.0 |
24.0 |
413.0 |
140.5 |
281.0 |
1024 |
M24 x 400NB |
— |
16" |
406.4 |
— |
440.0 |
297.5 |
80.0 |
24.0 |
463.0 |
165.5 |
331.0 |
1153 |
M24 x 450NB |
— |
18" |
457.0 |
— |
495.0 |
330.0 |
80.0 |
24.0 |
513.0 |
183.0 |
366.0 |
1273 |
M24 x 500NB |
— |
20" |
508.0 |
— |
545.0 |
355.0 |
80.0 |
24.0 |
563.0 |
208.0 |
416.0 |
1401 |
M24 x 550NB |
— |
22" |
559.0 |
— |
595.0 |
377.5 |
80.0 |
24.0 |
613.0 |
235.5 |
471.0 |
1533 |
M24 x 600NB |
— |
24" |
610.0 |
— |
645.0 |
402.5 |
80.0 |
24.0 |
663.0 |
260.5 |
521.0 |
1661 |