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1/4 Key Locking Inserts
Key Locking Inserts, also commonly known by their trade-names Keensert®, Keysert®, Loksert®, etc., are internally and externally threaded inserts with vertical keys attached to the top on the insert. They are installed by being screwed into a pre-drilled and pre-tapped hole, and during installation the keys are driven into the tapped threads of the parent to provide a positive mechanical lock. They are used to repair stripped or damaged threads or to provide reinforcement in a weak parent material.
51 results, (click on any line for more information)
| Buy Key Locking Inserts from one of our FCH Network Members | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Hayes | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/8-16 | 1/4-20 x 3/8-16 lock keylock insert 18-8ss dfl | 10 |
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| Hayes | CA | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 x 3/8 | nas1394c4l 1/4-28 x 3/8-16 key lkd insert ss | 44 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x .37 | 1/4-20 x .37 locking knsert 1/2-13 303sst () () | 3 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x .37 | 1/4-20 x .37 kylk ins 3/8-16 303sst dfl () () | 909 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 1/4-20 x .37 | 1/4-20 x .37 locking kylk ins 3/8-16 a286 () () | 199 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 x .37 | 1/4-28 x .37 kylk ins 1/2-13 303sst () () | 16 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/4-28 x .375 | 1/4-28 x .375 locking kylk ins 3/8-16 4140 () () | 32 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/4-28 x .40 | 1/4-28 x .40 flting knsert 1/2-20 () () | 2 |
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| OneMonroe | NC | Key Locking Insert (Keensert, Keysert etc.) | Plain | 1/4-20 x 7/16-14 | 1/4-20 x 7/16-14 x 1 e-z lock insert | 10 |
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| Endries | WI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 7/16-14 | 1/4-20x7/16-14 keensert 18-8 304 | 3 |
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| Hayes | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 7/16-14 | 1/4-20 x 7/16-14 lock keylock ins 18-8ss dfl | 381 |
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| Mansco | MI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 7/16-14 | 1/4-20 x 7/16-14 heavywall keysert s.s. | 129 |
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| OneMonroe | NC | Key Locking Insert (Keensert, Keysert etc.) | Plain | 1/4-20 x 1/2-13 | 1/4-20 x 1/2-13 extra heavy wall e-z lock insert | 20 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x .37 locking keensert 3/8-16 303sst | 20 |
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| Ababa | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/4 x 6 | 1/4 & m6 keysert installation tool (#72250) | 2 |
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| SWACO | OH | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 x 86 | insert screw thread key-locked ms51830ca202l | 10 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x 7/16 14 | 1/4-20x7/16-14 hd-cs | 64 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/8 16 | 1/4-20x3/8-16 tw-ss | 162 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 7/16 14 | 1/4-20x7/16-14 hd-ss | 100 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1/4-28 x 3/8 16 | 1/4-28x3/8-16 tw-cs | 40 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1/4-28 x 7/16 14 | 1/4-28x7/16-14 hd-cs | inquire |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 x 3/8 16 | 1/4-28x3/8-16 tw-ss | inquire |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 x 7/16 14 | 1/4-28x7/16-14 hd-ss | inquire |
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| RCFast | AZ | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | 1/4-20 | ms51831-102 insert, screw thrd, 1/4-20, 7/16-14 x 3/8l ss | 84 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x 3/8 16 | 1/4-20x3/8-16 tw-cs | 332 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 extra hvy duty threaded insert keensert (1/4-20id 1/2-13od 3/8long) s/s | inquire |
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| METRO IND | OH | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | 1/4-20 keysert hd carbon steel | 16 |
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| METRO IND | OH | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 keysert hd s/s | 12 |
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| METRO IND | OH | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | 1/4-20 keysert thin wall carbon steel | 8 |
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| Ababa | CA | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | 1/4-20 i.d. x 7/16-14 o.d. heavy duty stl keyserts (#73042) | 10 |
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| Global | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | ms51830-106 locking insert military ss/pa 1/4-20 thd internal x 0.370 l x 3/8-16 external thin wall 1/4-20 thd internal x 0.370 l x 3/8-16 external thin wall 1/4-20 thd internal x 0.370 l x 3/8-16 external thin wall | 25 |
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| BHAM | AL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 | keensert MS51830-202L | 4 |
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| BHAM | AL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 | keensert MS51830-202L | 4 |
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| QFC | TX | Key Locking Insert (Keensert, Keysert etc.) | Brass | Plain | 1/4-2013 | 1/4-2013m brass insert type ki | 45 |
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| AIH | AZ | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | insert s/s MS51830-106L | 2 |
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| AIH | AZ | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | insert screw-thread MS51830-106 | 1 |
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| AIH | AZ | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | 1/4-20 | 1/4-20 insert 304ss MS51831-102 | 4 |
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| AIH | AZ | Key Locking Insert (Keensert, Keysert etc.) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 1/4-20 | 1/4-20 locking insert nitronic 60 | 50 |
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| AIH | AZ | Key Locking Insert (Keensert, Keysert etc.) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 1/4-20 | 1/4-20 locking insert nitronic 60 | 50 |
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| Liberty | IL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 | 1/4-28 unjf-3b insert key locked to ms51830-202l | 5 |
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| AIH | AZ | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 | insert MS51830-202 | 30 |
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| SWACO | OH | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 | insert screw thread key-locked ms51830-202 | 65 |
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| Bossard | AZ | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | insert-non locking ms51830-202 | 1 |
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| SWACO | OH | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | insert screw thread key-locked ms51830-106 | 6753 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | ms51830-106 insert scr thread(keylkd) .250-20 x .375l cres | 14 |
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| SWACO | OH | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | 1/4-20 | insert screw thread key lock heavy duty ms51831-102 | 5232 |
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| SWACO | OH | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | insert screw thread key lock heavy duty ms51831-102l | 7 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 keensert 3/8-16 thread 303 ss locking | 4 |
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| Rapid | NY | Key Locking Insert (Keensert, Keysert etc.) | Steel | Passivated | 1/4-28 | insert screw thread locked-in cres 303 .250-28 unjf-3b x .375 lg. passivated MS51830-202L | 10 |
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| Century | NY | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | ms51830-106 insert scr thread(keylkd) .250-20 x .375l cres | 42 |
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| QCS | OR | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 | 1/4-28 int x 3/8-16 ext solid insert ss ms51830-202 | 50 |
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