Key Clamps
Alvin Key Clamps are distributed worldwide from our extensive stocks. All Fisher Alvin products are manufactured to the highest quality using the finest materials and the most modern plant and machinery. Fisher Alvin has been manufacturing Alvin key clamps for over fifty years.
Please note that our ‘stock tube’ is of a galvanised finish, the black tube is shown for illustrative purposes only, we do offer a powder coating option if this is required.
A part component of the A52. Used on its own it is ideal for a wall fixing for a chain attachment with a ‘D’ shackle. Can be used to take steel straining wires etc. Can be fixed to floor to provide fixing point for mesh panels/kick plates.
| Tube |
Ø |
A |
B |
C |
D |
E |
F |
| 5 |
26.9 |
40 |
84 |
116 |
54 |
12 |
48 |
| 6 |
33.7 |
40 |
84 |
116 |
54 |
12 |
48 |
| 7 |
42.4 |
40 |
84 |
116 |
54 |
12 |
48 |
| 8 |
48.3 |
40 |
84 |
116 |
54 |
12 |
48 |
| 9 |
60.3 |
40 |
84 |
116 |
54 |
12 |
48 |
Used for an angled wall fixing plate or a strut for added strengthening of a post. Not to be used as an angled base plate. Consider the G12. Alternatively use A12 and bend the vertical tube to the upright position.
| Tube |
Ø |
A |
B |
C |
D |
E |
F |
| 5 |
26.9 |
40 |
34 |
25 |
10 |
|
|
| 6 |
33.7 |
40 |
36 |
25 |
10 |
|
|
| 7 |
42.4 |
40 |
45 |
25 |
10 |
|
|
| 8 |
48.3 |
40 |
53 |
25 |
10 |
|
|
| 9 |
60.3 |
40 |
58 |
36 |
10 |
|
|
Used for the added support of a clamp that may be subject to severe loading, in excess of the maximum permitted slip load of it's socket set screws, on racking etc. Can support another clamp, which doesn't have it's socket screw tightened.
| Tube |
Ø |
A |
B |
C |
D |
E |
F |
| 5 |
26.9 |
22 |
|
|
|
|
|
| 6 |
33.7 |
25 |
|
|
|
|
|
| 7 |
42.4 |
25 |
|
|
|
|
|
| 8 |
48.3 |
25 |
|
|
|
|
|
Used in conjunction with the A62 for a gate hinge assembly.
| Tube |
Ø |
A |
B |
C |
D |
E |
F |
| 5 |
26.9 |
30 |
12 |
25 |
|
|
|
| 6 |
33.7 |
33 |
12 |
27 |
|
|
|
| 7 |
42.4 |
37 |
13 |
27 |
|
|
|
| 8 |
48.3 |
40 |
13 |
27 |
|
|
|
Used in conjunction with the A60 for a gate hinge assembly.
| Tube |
Ø |
A |
B |
C |
D |
E |
F |
| 5 |
26.9 |
25 |
34 |
11 |
30 |
|
|
| 6 |
33.7 |
27 |
34 |
11 |
33 |
|
|
| 7 |
42.4 |
27 |
38 |
12 |
37 |
|
|
| 8 |
48.3 |
27 |
38 |
12 |
40 |
|
|
This clamp is generally used on a vertical post where chain is connected for an access opening in a guardrail. The chain is easily removed from the A64, use an A36 and a ‘D’ shackle for the opposite end connection.
| Tube |
Ø |
A |
B |
C |
D |
E |
F |
| 5 |
26.9 |
25 |
32 |
20 |
|
|
|
| 6 |
33.7 |
25 |
34 |
24 |
|
|
|
| 7 |
42.4 |
25 |
39 |
24 |
|
|
|
| 8 |
48.3 |
25 |
41 |
24 |
|
|
|
This clamp can be added to an existing structure. It provides a 90º crossover connection and is an alternative to the A28 but is available in more reducing size variations. It is of mild steel manufacture.
| Tube |
Ø |
A |
B |
C |
D |
E |
F |
| 5 |
26.9 |
35 |
27 |
27 |
27 |
|
|
| 6 |
33.7 |
42 |
34 |
34 |
34 |
|
|
| 7 |
42.4 |
50 |
42 |
42 |
42 |
|
|
| 8 |
48.3 |
56 |
48 |
48 |
48 |
|
|
These plastic caps are used to plug the ends of the tubing. Once in position they are extremely difficult to remove.
| Tube |
Ø |
A |
B |
C |
D |
E |
F |
| 5 |
26.9 |
1 |
|
|
|
|
|
| 6 |
33.7 |
1 |
|
|
|
|
|
| 7 |
42.4 |
1 |
|
|
|
|
|
| 8 |
48.3 |
1 |
|
|
|
|
|
| 9 |
60.3 |
1 |
|
|
|
|
|
