ITP & MTP

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.

  • Protects exposed bolt threads and nuts
  • Sizes from ¾" to 4" (M16 to M100)
  • Strong and secure fixing

Bolt tensioner pumps, hoses, hose reels, couplers and bolt & nut protection caps. Bolt & Nut Protection Caps
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

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