ITP & MTP
- Protects exposed bolt threads and nuts
- Sizes from ¾" to 4" (M16 to M100)
- Strong and secure fixing
The ITP & MTP bolt and nut protection caps are designed to protect bolts and nuts from thread damage and to considerably help prevent corrosion. These screw-on metal caps have a special internal female thread matching the bolt thread, that ensures a strong and secure fixing to the bolt. These protection caps are commonly installed on heat exchangers and reactors operating at temperatures up to 550˚C and over, where common plastic caps would melt. Ideal for use in refineries, petrochemical, LNG plants, offshore platforms and steel structures. The ITP caps are available to suit imperial bolt thread sizes from ¾” to 4” and MTP caps are suitable for metric bolt thread sizes from M16 to M100.
Imperial Sizes
| Model No. |
Bolt Size |
Dimensions in mm |
| A |
B |
C |
D |
| ITP012 |
3/4" |
19.0 |
39 |
22 |
23 |
| ITP014 |
7/8" |
22.3 |
44 |
26 |
33 |
| ITP100 |
1" |
25.5 |
48 |
29 |
37 |
| ITP102 |
1 1/8" |
28.6 |
55 |
33 |
40 |
| ITP104 |
1 1/4" |
31.8 |
60 |
36 |
44 |
| ITP106 |
1 3/8" |
35.0 |
65 |
39 |
48 |
| ITP108 |
1 1/2" |
38.2 |
70 |
42 |
53 |
| ITP110 |
1 5/8" |
41.3 |
77 |
46 |
59 |
| ITP112 |
1 3/4" |
44.5 |
83 |
49 |
64 |
| ITP114 |
1 7/8" |
47.7 |
88 |
53 |
67 |
| ITP200 |
2" |
51.0 |
94 |
56 |
72 |
| ITP204 |
2 1/4" |
57.2 |
105 |
62 |
80 |
| ITP208 |
2 1/2" |
63.5 |
114 |
69 |
91 |
| ITP212 |
2 3/4" |
70.0 |
125 |
75 |
99 |
| ITP300 |
3" |
76.3 |
136 |
81 |
107 |
| ITP304 |
3 1/4" |
82.7 |
152 |
87 |
116 |
| ITP308 |
3 1/2" |
89.0 |
160 |
94 |
126 |
| ITP312 |
3 3/4" |
95.4 |
172 |
100 |
135 |
| ITP400 |
4" |
102.0 |
183 |
107 |
152 |
Metric Sizes
| Model No. |
Bolt Size |
Dimensions in mm |
| A |
B |
C |
D |
| MTP16 |
M16 |
16 |
31 |
18 |
22 |
| MTP18 |
M18 |
18 |
34 |
21 |
23 |
| MTP20 |
M20 |
20 |
39 |
23 |
25 |
| MTP22 |
M22 |
22 |
40 |
25 |
32 |
| MTP24 |
M24 |
24 |
45 |
29 |
34 |
| MTP27 |
M27 |
27 |
51 |
30 |
37 |
| MTP30 |
M30 |
30 |
55 |
33 |
40 |
| MTP33 |
M33 |
33 |
61 |
36 |
46 |
| MTP36 |
M36 |
36 |
65 |
39 |
48 |
| MTP39 |
M39 |
39 |
70 |
42 |
52 |
| MTP42 |
M42 |
42 |
77 |
46 |
59 |
| MTP45 |
M45 |
45 |
83 |
49 |
64 |
| MTP48 |
M48 |
48 |
88 |
53 |
67 |
| MTP52 |
M52 |
52 |
94 |
56 |
72 |
| MTP56 |
M56 |
56 |
102 |
60 |
84 |
| MTP64 |
M64 |
64 |
113 |
69 |
91 |
| MTP68 |
M68 |
68 |
119 |
73 |
98 |
| MTP72 |
M72 |
72 |
125 |
77 |
100 |
| MTP76 |
M76 |
76 |
131 |
81 |
105 |
| MTP80 |
M80 |
80 |
136 |
85 |
107 |
| MTP90 |
M90 |
90 |
159 |
95 |
126 |
| MTP100 |
M100 |
100 |
183 |
105 |
144 |
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