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Security Nuts
Tamper-Proof Security Nuts are usually used in applications where the head of the mating bolt or screw is not accessible. The nut is tightened with some unconventional or patented drive style that makes it tamper proof.
218 Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.), showing 200, (click on any line for more information)
| Buy Security Nuts from one of our FCH Network Members | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Irwin Ind | Ont | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | #10-32 | trigroove tamper resistant nut 10-32 zinc plated | 350 |
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| ASMC | IL | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Plain | 5/8-11 | coarse security locknut low carb | 8 |
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| Liberty | IL | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 3/8-16 | tri groove nut (zinc) | 36 |
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| Liberty | IL | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Yellow | 1/4-20 | tri groove nut & black dichromate black dichromate | 900 |
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| American | NY | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Plain | 3/4-10 | one way lock nuts | 3000 |
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| American | NY | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 5/16-18 | trigroove nut plate | 300 |
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| American | NY | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Yellow | 3/8-16 | 3/8-16 heavy hex one way zinc yellow | 500 |
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| Alma Bolt | MI | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Plain | 1-14 | SAE thin pattern (#h 622t security locknuts | 298 |
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| METRO IND | OH | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Grade 5 | Plain | 3/8-16 | hex security locknut heavy uss | 200 |
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| METRO IND | OH | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Grade 8 | Plain | 1 1/2-6 | hex security locknut heavy USS gr 8 | 25 |
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| METRO IND | OH | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Grade 8 | Plain | 1 1/8-7 | hex security locknut heavy USS gr 8 | 7 |
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| METRO IND | OH | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Grade 8 | Plain | 1/2-13 | hex security locknut heavy USS gr 8 | 20 |
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| METRO IND | OH | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Grade 8 | Plain | 1 3/4-5 | hex security locknut heavy USS gr 8 | 6 |
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| METRO IND | OH | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Grade 8 | Plain | 3/4-10 | hex security locknut heavy USS gr 8 | 15 |
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| METRO IND | OH | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Grade 8 | Plain | 7/8-9 | hex security locknut heavy USS gr 8 | 42 |
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| MidStates | MI | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Plain | whittet higgins spanner wrench | 1 |
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| Bryce Fastener | AZ | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 2 1/2 | 3/8-16x2-1/2 bh penta nut 37 drive ms ss | 27 |
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| Bryce Fastener | AZ | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #2-56 | 2/56 key-rex nut ss m/s x29{x29-11bd} | 45 |
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| Bryce Fastener | AZ | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 | 3/8-16 key-rex nuts ss{0gt4-62fe | 78 |
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| Bryce Fastener | AZ | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4/40 key-rex nut ss m/s x29{x29-11bd} | 12 |
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| Bryce Fastener | AZ | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 | 8/32 penta-nut ss | 6 |
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| Bryce Fastener | AZ | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-26 | 3/8-26 fine th keyrex nuts ss | 8 |
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| Bryce Fastener | AZ | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M9 | m9 keyrex nut ss{ogt4-62fe} | 10 |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 1/2-13 | t-groove nut | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 1/2-13 | t-groove nut st/ | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 tork-nut ss | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 1/2-13 | t-groove nut | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-14 | 1-14 tork-nut ss | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 1/4-20 | 1/4-20 tork-nut | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 x 1 1/4 | torx-pin brl nutss | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 x 5/8 | torx-pin b-nut sc | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 x 5/8 | torx-pin b-nut ss | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 x 3/4 | torx-pin b-nut ss | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 3/4-10 | t-groove nut | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 | 3/8-16 tork-nut ss | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 | 3/8-16 tork-nut ss domestic | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 3/8-16 | 3/8-16 tork-nut | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-24 | p-series nut ss | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 3/8 ultra-lok s7 nut tool | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 | 1-8 slot-lok nut ss | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 3/8 | tp b-nut .250 o.d. | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 5/8 | torx-pin b-nut | inquire |
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| UltraFast | WA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 | 10-24 slot-lok nut ss | inquire |
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| Eurolink | SC | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Plain | M38-1.50 | m38 - 1.5 din 1804w slotted round spanner nut slotted round spanner nut | 24 |
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| Eurolink | SC | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Plain | M65-1.50 | m65 - 1.5 din 1804-w (unhardened) slotted round spanner nut slotted round spanner nut | 100 |
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| BHAM | AL | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Plain | 1/4-20 | nut tri groove | 64 |
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| BHAM | AL | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 1/2-13 | trigroove nut | 30 |
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| BCSB | CA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Zinc/Clear | 1/4-20 | 1/4-20 tri-groove nut zinc | 16,700 |
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| AIH | AZ | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Plain | 1 3/8 x 2 1/8 | 1-3/8 x 2-1/8 nut round spanner MS27955-15 | 90 |
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| ASFCORP | MI | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | Plain | 5/16-18 | 5/16-18 and 3/8-16 nutsetter no 30 tamperpruf 3/8 in sq drive tool steel | 30 |
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| FMP | MA | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Brass | Plain | 3/4-20 | spanner nut with slots(1 x 3/16) | 64 |
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| SRF | AL | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | n-05 spanner locknut | 10 |
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| SRF | AL | Tamper-Proof Security Nut (Tri-Groove, Penta-Nut, Slot-Lok, etc.) | Steel | n-06 1 1/8-18 spanner locknut | 20 |
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