Thread Lockers

Applying Hernon thread locker to a threaded assembly can improve quality outcomes and reduce MRO requirements

Applying even a small amount of thread locker to a threaded assembly can improve quality outcomes and reduce MRO requirements.

Reliable Thread Lockers

Nuts N’ Bolts® thread lockers secure threaded assemblies and resist loosening due to vibration and thermal expansion. These products cure anaerobically, in the absence of oxygen, for fast and reliable bonding. low, medium, and high strength versions are available as well as wicking grades which can be applied without disassembly. These tried and trusted products are used around the world and are specified in critical industries including defense and aerospace applications.

Custom Thread Locker Formulas

Hernon Manufacturing ™ maintains a library of over 5000 unique formulas of adhesives and sealants but occasionally a specialty application calls for a change to one of our established formulas or even the creation of an entirely new product. Hernon’s in house laboratory offers custom formula creation, complete with extensive product testing and sampling. If you have an application bonding unique materials or in a unique environment, contact Hernon today to learn more about designing a custom formula.


HERNON THREAD LOCKERS

Name Color VISC (cP) Prevailing 3/8x24 (6 HRS) Prevailing 3/8x24 (24 HRS) Break * Steel (24 HRS) Break * Plated Steel (24 HRS) Prevail * Steel (24 HRS) Prevail * Plated Steel (24 HRS) Equivalent To
Nuts N’ Bolts® 128 Blue 75 - 85 ≥ 2.82 (≥25) Loctite® 425
Nuts N' Bolts® 240 Purple 10 - 25 ≥ 10 2.26 - 5.65 (20 - 50) Loctite® 080
Nuts N' Bolts® 439 Red 2.5K - 3.5K ≥ 11.3 (≥ 100) 15.82 - 22.6 (140 - 200) ≥ 14.12 (≥ 125) 20.34 - 27.12 (180 - 240) Loctite® 2760
Nuts N' Bolts® 434 Blue 1.5K - 3K 9.04 - 16.95 (80 - 150) 5.65 - 14.12 (50 - 125) 3.95 - 9.94 (35 - 88) 0.56 - 7.34 (5 - 65) Loctite® 243
Nuts N' Bolts® 431 Green 10 - 30 2.26 - 16.95 (20 - 150) 1.13 - 11.3 (10 - 100) 16.95 - 56.49 (150 - 500) 8.47 - 56.49 (75 - 500) Loctite® 290
Nuts N' Bolts® 429 Red 6K - 8K 16.95 - 39.54 (150 - 350) 5.65 - 39.54 (50 - 350) 16.95 - 56.49 (150 - 500) 4.52 - 56.49 (40 - 500) Loctite® 277
Nuts N' Bolts® 428 Red 4K - 8K 16.95 - 39.54 (150 - 350) 16.95 - 22.6 (150 - 200) 16.95 - 56.49 (150 - 500) 16.95 - 28.25 (150 - 250) Loctite® 272
Nuts N' Bolts® 427 Red 400 - 600 16.95 - 39.54 (150 - 350) 4.52 - 39.54 (40 - 350) 16.95 - 56.49 (150 - 500) 4.52 - 56.49 (40 - 500) Loctite® 271
Nuts N' Bolts® 426 Green 400 - 600 16.95 - 39.54 (150 - 350) 4.52 - 39.54 (40 - 350) 16.95 - 56.49 (150 - 500) 4.52 - 56.49 (40 - 500) Loctite® 270
Nuts N' Bolts® 425 Red 1.2 - 2.4K 11.3 - 28.25 (100 - 250) 5.65 - 28.25 (50 - 250) 11.3 - 33.9 (100 - 300) 5.65 - 28.25 (50 - 250) Loctite® 554
Nuts N' Bolts® 423 Blue 800 - 1.6K 7.91 - 22.6 (70 - 200) 1.13 - 11.3 (10 - 100) 2.26 - 22.6 (20 - 200) 0.56 - 22.6 (5 - 200) Loctite® 242
Nuts N' Bolts® 422 Blue 115 - 135 11.3 - 22.6 (100 - 200) 5.65 - 16.95 (50 - 150) 3.39 - 22.6 (30 - 200) 2.26 - 22.6 (20 - 200) Loctite® 241
Nuts N' Bolts® 420 Purple 900 - 1.5K 3.39 - 7.91 (30 - 70) 1.13 - 11.3 (10 - 100) 1.13 - 5.65 (20 - 50) 0.56 - 11.3 (5 - 100) Loctite® 222MS
Nuts N' Bolts® 419 Purple 100 - 175 5.56 - 11.3 (50 - 100) 1.13 - 11.3 (10 - 100) 1.13 - 5.65 (20 - 50) 1.13 - 4.52 (10 - 40) Loctite® 221
Nuts N' Bolts® 418 Blue 10 - 20 2.26 - 11.3 (20 - 100) 1.69 - 22.6 (15 - 200) 11.3 - 22.6 (100 - 200) 1.69 - 22.6 (15 - 200) Loctite® 220
Nuts N' Bolts® 410 Blue 10 - 30 2.26 - 11.3 (20 - 100) 1.13 - 11.3 (10 - 100) 2.26 - 11.3 (20 - 100) 1.13 - 11.3 (10 - 100) Loctite® 210
Nuts N' Bolts® 248 Brown 10 - 25 ≥ 5 1.13 - 2.82 (10 - 25) Loctite® 078
Nuts N' Bolts® 246 Brown 100 - 250 ≥ 5 1.13 - 2.82 (10 - 25) Loctite® 077
Nuts N' Bolts® 238 Purple 100 - 250 ≥ 10 2.26 - 5.65 (20 - 50) Loctite® 079
Nuts N' Bolts® 237 Orange 40 - 80 ≥ 50 11.3 - 28.25 (100 - 250) Loctite® 081
Nuts N' Bolts® 236 Red 100 - 250 ≥ 20 4.52 - 11.3 (40 - 100) Loctite® 083
Nuts N' Bolts® 234 Blue 1K - 2K ≥ 20 4.52 - 11.3 (40 - 100)
Nuts N' Bolts® 232 Blue 10 - 25 ≥ 20 4.52 - 11.3 (40 - 100) Loctite® 084
Nuts N' Bolts® 230 Yellow 100 - 200 ≥ 35 7.91 - 19.77 (70 - 175) Loctite® 085
Nuts N' Bolts® 227 Red 10 - 25 ≥ 50 11.3 - 28.25 (100 - 250) Loctite® 088
Nuts N' Bolts® 225 Red 100 - 250 ≥ 50 11.3 - 28.25 (100 - 250) Loctite® 087
Nuts N' Bolts® 223 Red 1K - 2.5K ≥ 50 11.3 - 28.25 (100 - 250) Loctite® 086
Nuts N' Bolts® 220 Green 10 - 25 ≥ 75 16.95 - 42.37 (150 - 375) Loctite® 089

Loctite® is a registered trademark of Loctite Corp.

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