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1 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.
116 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 | |
| Endries | WI | Key Locking Insert (Keensert, Keysert etc.) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 14602t 10-32 x .190 | 14602t 10-32x.190 nitronic locking insert | 49 |
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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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| 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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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 x 3/8 | nas1394c4l | 54 |
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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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| 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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| JHP Fasteners | TX | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/2-13 x 5/8-11 | insert non-locking 1/2-13x5/8-11 steel | 3 |
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| Ababa | CA | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/2-13 x 5/8 | 1/2-13 i.d. x 5/8-11 o.d. thinwall stl keyserts | 10 |
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| JHP Fasteners | TX | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/2-13 x 5/8 | insert solid light wt. 1/2-13 s/s ms51830-110 | 1 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/2-20 x .62 | 1/2-20 x .62 kylk ins 3/4-16 carbon () () | 50 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x .62 | 1/2-13 x .62 kylk ins 3/4-16 303sst () () | 119 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/2-13 x 5/8 | 1/2-13 keensert 5/8-11 thd 303 ss () | 53 |
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| SWACO | OH | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/2-13 x 5/8 | insert screw thread key-locked ms51830-110 | 924 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/2-13 x 11/16 | ms51831-106l | 4 |
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| Hayes | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 11/16-11 | 1/2-13 x 11/16-11 lock keylock ins 18-8 ss dfl | 16 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-20 x .68 | 1/2-20 x .68 knsert 13/16-16 303sst () () | 9 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/2-13 x .68 | 1/2-13 x .68 kylk ins 11/16-11 nit60 () () | 337 |
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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.) | Steel | Plain | 1/2-13 x 3/4 | 1/2-13 i.d. x 3/4-16 o.d. heavy duty stl keyserts | 5 |
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| Hewes | NY | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1.00 | 1/2-13x 1.00 slf-locking inserts/s ms21209-c8-20 | 64 |
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| SRF | AL | Key Locking Insert (Keensert, Keysert etc.) | 1/2-13 x 1.0 | 1/2-13 x 1.0 locking insert | - |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1-14 x 1.37 | 1-14 x 1.37 kylk ins 1 3/8-12 carbon stl () () | 39 |
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| Endries | WI | Key Locking Insert (Keensert, Keysert etc.) | 1 1/4-7 x 1 5/8-12 | 1 1/4-7x1 5/8-12 keysert | 4 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | 1 1/4-7 x 1.81 | 1-1/4-7 x 1.81 kylk ins 1-5/8-12 () () | 10 |
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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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| Ababa | CA | Key Locking Insert (Keensert, Keysert etc.) | 1/2 x 12 | 1/2 & 9/16 & m12 keysert installation tool (#72500) | 2 |
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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 | inquire |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/8 16 | 1/4-20x3/8-16 tw-ss | 462 |
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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.) | 1/2-13 x 5/8 11 | 1/2-13x5/8-11 tw-cs | 5 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 5/8 11 | 1/2-13x5/8-11 tw-ss | 75 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3/4 16 | 1/2-13x3/4-16 hd-ss | 80 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1-8 x 1 3/8 12 | 1-8x1 3/8-12 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 | 1-8 x 1 3/8 12 | 1-8x1 3/8-12 hd-ss | inquire |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1 1/8-7 x 1 1/2 12 | 1 1/8-7x1 1/2-12 | inquire |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1 1/4-7 x 1 5/8 12 | 1 1/4-7x1 5/8-12 hd-cs | inquire |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1 1/2-6 x 1 7/8 12 | 1 1/2-6x1 7/8-12 hd-cs | inquire |
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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 | inquire |
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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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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1/2-20 x 5/8 11 | 1/2-20x5/8-11 tw-cs | inquire |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1/2-20 x 3/4 16 | 1/2-20x3/4-16 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 | 1/2-20 x 5/8 11 | 1/2-20x5/8-11 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 | 1/2-20 x 3/4 16 | 1/2-20x3/4-16 hd-ss | inquire |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1-12 x 1 3/8 12 | 1-12x1 3/8-12 | 10 |
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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 | 100 |
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| Jay-Cee | MI | Key Locking Insert (Keensert, Keysert etc.) | 1/2-13 x 3/4 16 | 1/2-13x3/4-16 hd-cs | 85 |
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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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| Ababa | CA | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/2-20 | 1/2-20 i.d. x 5/8-11 o.d. thinwall stl keyserts (#74081) | 25 |
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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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| AZ | Key Locking Insert (Keensert, Keysert etc.) | 1/2 | 1/2 ez lock 40/50 | 2000 |
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| Endries | WI | Key Locking Insert (Keensert, Keysert etc.) | Steel | Zinc/Clear | 1/2-13 | 1/2-13 grade g nylon insert flange locknut tri clear zinc 96 white rust | 3873 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 | ms51830-202 | 223 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 102 | ms51830ca102 | 78 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-20 | ms51831-102l | 307 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | 103 | ms51830ca103 | 37 |
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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) | 14 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 101 | ms51830ca101 | 17 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 109 | ms51831a109 insert | 14 |
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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.) | Steel | Plain | 104 | ms51830ca104 | 1 |
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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.) | Steel | Plain | 1/4-28 | ms51831-202 | 77 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/4-28 x 7/16 14 | ms51831-202l | 4 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 | ms51830-202l | 88 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 86 | ms51830ca202l | 7401 |
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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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| MidStates | MI | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1-12 x 1 3/8 12 | 1-12x1-3/8-12 hvy keensert | 5 |
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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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| Jackson | MS | Key Locking Insert (Keensert, Keysert etc.) | Nylon (Polyamide) | Zinc/Clear | 1 3/4-12 | 1 3/4-12 nf heavy insert nu series lock n ut | 23 |
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| Eurolink | SC | Key Locking Insert (Keensert, Keysert etc.) | 1 | m10-1.5 keensert ( thinwall ) | inquire |
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| Eurolink | SC | Key Locking Insert (Keensert, Keysert etc.) | 1 | m6 -1.00 keensert (thinwall) | inquire |
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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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| Endries | WI | Key Locking Insert (Keensert, Keysert etc.) | Plain | 12378 5/16-18 | 12378 5/16-18 keensert (box of 4) | 8 |
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| Olander | CA | Key Locking Insert (Keensert, Keysert etc.) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 101 | 2-56 x .12 kylk ins 8-32 a286 sst () () | 26 |
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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 | 15 |
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| AIH | AZ | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 104 | insert screw-thread MS51830CA104 | 6 |
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| Century | FL | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | 1/2-20 | ms51830-206 | 44 |
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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 | 18873 |
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| SWACO | OH | Key Locking Insert (Keensert, Keysert etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | insert screw thread key lock heavy duty ms51831-106 | 450 |
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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 | 837 |
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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 | 17 |
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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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| Century | NY | Key Locking Insert (Keensert, Keysert etc.) | Plain | keensert knh813j 1/2-13 11/16-11 thread | 10 |
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| Century | NY | Key Locking Insert (Keensert, Keysert etc.) | Steel | Plain | ms51831a109 insert | 14 |
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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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