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Lock Nuts

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3/4-10 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

3/4-10 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67543561

Manufacturer Flex-Loc

Mfr # 31FA-1210

7/8-9 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

7/8-9 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67543603

Manufacturer Flex-Loc

Mfr # 31FA-1409

1-8 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

1-8 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67543645

Manufacturer Flex-Loc

Mfr # 31FA-1608

5/16-18 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

5/16-18 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67543686

Manufacturer Flex-Loc

Mfr # 21FK-518

3/8-16 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

3/8-16 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67543728

Manufacturer Flex-Loc

Mfr # 21FK-616

1/2-13 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

1/2-13 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67543801

Manufacturer Flex-Loc

Mfr # 21FK-813

5/8-11 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

5/8-11 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67543884

Manufacturer Flex-Loc

Mfr # 31FK-1011

5/16-18 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

5/16-18 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67544049

Manufacturer Flex-Loc

Mfr # 50FA-518

1/2-13 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

1/2-13 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67544163

Manufacturer Flex-Loc

Mfr # 50FA-813

1/4-20 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

1/4-20 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67544205

Manufacturer Flex-Loc

Mfr # 50FAC-420

5/16-18 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

5/16-18 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67544247

Manufacturer Flex-Loc

Mfr # 50FK-518

1/2-13 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

1/2-13 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top

SKU # 67544320

Manufacturer Flex-Loc

Mfr # 50FK-813

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