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1/4-20 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.
45 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 | |
| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | ms51831-102l () () () () () () () () () () () () | 332 |
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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 thd(keylkd) .250-20 x .375l cres (INSERTSCR THD(KEYLKD) .250-20 X .375LCRES) (INSERT SCR THD(KEYLKD) .250-20 X .375L CRES) () () () () () () () () () () | 42 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | ms51830-106l () () () () () () () () () () () () | 10 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | 1/4-20 | ms51831-102 () () () () () () () () () () () () | 13 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 | ms51832-102l 1/4-20 hvy duty () () () () () () () () () () () () | 5 |
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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 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.) | 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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| SWACO | OH | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | ms51831-102l locking insert 1/4-20 | 27 |
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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 | ms51831-102 1/4-20 insert 304ss | 500 |
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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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| 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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| 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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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x 7/16 14 | 1/4-20x7/16-14 hd-cs | 10 |
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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 | 80 |
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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.) | 1/4-20 x 3/8 16 | 1/4-20x3/8-16 tw-cs | inquire |
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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 3/8-16 303sst () | 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 | 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.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x .62 | 1/4-20 x .62 blind knsert 3/8-16 303sst () () | 549 |
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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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| 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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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x .37 | 1/4-20 x .37 kylk ins 3/8-16 nit60 () | 141 |
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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 1/2-13 303sst () | 69 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x .37 | 1/4-20 x .37 locking kylk ins 3/8-16 () | 610 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x .37 3 | 1/4-20 x .37 knsert 3/8-16 nit-60 () | 948 |
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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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| SWACO | OH | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | ms51830-106 insert keylock | 13 |
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| EBN Indus | IN | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x 7/16-14 x .37 | 1/4-20 x 7/16-14 x .37 hvy duty keysert | 6 |
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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) | 15 |
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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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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 1/4-20 x .37 7/16-14 | 1/4-20 x .37 keensert 7/16-14 nitronic-60 | 1827 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | 1/4-20 keensert 3/8-16 thd 303 ss locking | 4 |
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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 7/16-14 303sst | 4016 |
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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 7/16-14 303sst | 971 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x .37 | 1/4-20 x .37 kylk ins 7/16-14 nit60 | 1990 |
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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 | 620 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x .37 7 | 1/4-20 x .37 hvy knsert 7/16-14 carbon | 1 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/4-20 x .37 | 1/4-20 x .37 locking kylk ins 7/16-14 | 2 |
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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 7 | 1/4-20 x .37 knsert 7/16-14 303sst | 310 |
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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 | 1/4-20 keensert 3/8-16 thd 303 ss | 545 |
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| Hewes | NY | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/8 | 1/4-20x 3/8 insert 303 s/sless nylon patch | 10 |
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