Lock Nuts

Lock Nuts
  • Dorman® - M12-1.25 mm Steel (Class 8) Metric Extra Fine Hex Lock Nut with Nylon Insert (12 Pieces)
    Dorman®M12-1.25 mm Steel (Class 8) Metric Extra Fine Hex Lock Nut with Nylon Insert (12 Pieces) (433-012BX)
    0
    # mpn4668476768
    M12-1.25 mm Steel (Class 8) Metric Extra Fine Hex Lock Nut with Nylon Insert (12 Pieces) by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $9.13
  • Dorman® - M4-0.70 mm Steel (Class 8) Metric Coarse Hex Lock Nut with Nylon Insert (20 Pieces)
    Dorman®M4-0.70 mm Steel (Class 8) Metric Coarse Hex Lock Nut with Nylon Insert (20 Pieces) (432-004BX)
    0
    # mpn4668476852
    M4-0.70 mm Steel (Class 8) Metric Coarse Hex Lock Nut with Nylon Insert (20 Pieces) (432-004BX) by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $8.63
  • Dorman® - M6-1.00 mm Steel (Class 8) Clear Zinc Metric Hex Lock Nut with Nylon Ring Insert (3 Pieces)
    Dorman®M6-1.00 mm Steel (Class 8) Clear Zinc Metric Hex Lock Nut with Nylon Ring Insert (3 Pieces) (784-752D)
    0
    # mpn4668476855
    M6-1.00 mm Steel (Class 8) Clear Zinc Metric Hex Lock Nut with Nylon Ring Insert (3 Pieces) (784-752D) by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $3.68
  • Dorman® - M8-1.25 mm Steel (Class 10) Yellow Zinc Metric Coarse Hex Prevailing Torque Lock Nut (7 Pieces)
    Dorman®M8-1.25 mm Steel (Class 10) Yellow Zinc Metric Coarse Hex Prevailing Torque Lock Nut (7 Pieces) (962-028)
    0
    # mpn4668476885
    M8-1.25 mm Steel (Class 10) Yellow Zinc Metric Coarse Hex Prevailing Torque Lock Nut (7 Pieces) (962-028) by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $4.17
  • Dorman® - M8-1.25 mm Steel (Class 8) Clear Zinc Metric Hex Lock Nut with Nylon Ring Insert (3 Pieces)
    Dorman®M8-1.25 mm Steel (Class 8) Clear Zinc Metric Hex Lock Nut with Nylon Ring Insert (3 Pieces) (784-754D)
    0
    # mpn4668476412
    M8-1.25 mm Steel (Class 8) Clear Zinc Metric Hex Lock Nut with Nylon Ring Insert (3 Pieces) (784-754D) by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $3.68
  • ARP® - 1/2"-13 Stainless Steel SAE Hex Nuts with Nylon Insert (5 Pieces)
    ARP®1/2"-13 Stainless Steel SAE Hex Nuts with Nylon Insert (5 Pieces) (400-8667)
    0
    # mpn4843206945
    1/2"-13 Stainless Steel SAE Hex Nuts with Nylon Insert (5 Pieces) by ARP®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
    Designed to help to get your job done rightManufactured utilizing the highest quality materials
    $8.67
  • Steinjager® - 3/8"-24 Zinc Plated SAE Right Hand Lock Nut (100 Pieces)
    Steinjager®3/8"-24 Zinc Plated SAE Right Hand Lock Nut (100 Pieces) (J0014337)
    0
    # mpn1294774459
    3/8"-24 Zinc Plated SAE Right Hand Lock Nut (100 Pieces) by Steinjager®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...
    Precise manufacturing and high-grade materialsExceptional performance at a competitive price
    $20.99
  • Fox® - M10-1.25 mm Steel Clear Zinc Metric Hex Nut with Nylon Insert
    Fox®M10-1.25 mm Steel Clear Zinc Metric Hex Nut with Nylon Insert (019-00-013)
    0
    # mpn4743552065
    M10-1.25 mm Steel Clear Zinc Metric Hex Nut with Nylon Insert by Fox®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...
    Designed to help to get your job done rightManufactured utilizing the highest quality materials
    $2.60
  • OTC® - 1/2"-13 Steel Hex Lock Nut
    OTC®1/2"-13 Steel Hex Lock Nut (15013)
    0
    # mpn4731872369
    1/2"-13 Steel Hex Lock Nut by OTC®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Made to high standards of qualityDesigned to provide the ultimate in practicality
    $11.43
  • AllStar Performance® - SAE Mechanical Lock Nut
    AllStar Performance®SAE Mechanical Lock Nut
    0
    # 3769877643
    SAE Mechanical Lock Nut by AllStar Performance®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExceptional performance at a competitive price
    $2.79 - $9.99
  • AllStar Performance® - SAE Nut with Nylon Insert
    AllStar Performance®SAE Nut with Nylon Insert
    0
    # 3769877680
    SAE Nut with Nylon Insert by AllStar Performance®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExceptional performance at a competitive price
    $2.29 - $17.99
  • AllStar Performance® - SAE Nut with Thin Nylon Insert
    AllStar Performance®SAE Nut with Thin Nylon Insert
    0
    # 3769876705
    SAE Nut with Thin Nylon Insert by AllStar Performance®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...
    Precise manufacturing and high-grade materialsExceptional performance at a competitive price
    $1.99 - $9.99
  • AllStar Performance® - SAE Spin Lock Nut
    AllStar Performance®SAE Spin Lock Nut
    0
    # 3769876729
    SAE Spin Lock Nut by AllStar Performance®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExceptional performance at a competitive price
    $2.89 - $6.49
  • Dorman® - AutoGrade™ Steel (Class 8) Metric Extra Fine Hex Lock Nut with Nylon Insert
    Dorman®AutoGrade™ Steel (Class 8) Metric Extra Fine Hex Lock Nut with Nylon Insert
    0
    # 4764677515
    AutoGrade™ Steel (Class 8) Metric Extra Fine Hex Lock Nut with Nylon Insert by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $7.35 - $29.44
  • Dorman® - AutoGrade™ Steel (Grade 2) SAE Hex Lock Nut with Nylon Ring Insert
    Dorman®AutoGrade™ Steel (Grade 2) SAE Hex Lock Nut with Nylon Ring Insert
    0
    # 4764676617
    AutoGrade™ Steel (Grade 2) SAE Hex Lock Nut with Nylon Ring Insert by Dorman®. These nuts are manufactured using durable materials and corrosion tested to ensure required strength and longevity. This product is made of high-quality...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $13.21 - $13.42
  • Dorman® - AutoGrade™ Steel (Grade 8) SAE Hex Prevailing Torque Lock Nut
    Dorman®AutoGrade™ Steel (Grade 8) SAE Hex Prevailing Torque Lock Nut
    0
    # 4764677518
    AutoGrade™ Steel (Grade 8) SAE Hex Prevailing Torque Lock Nut by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $7.79
  • Dorman® - Steel (Class 8) Metric Fine Hex Lock Nut with Nylon Insert
    Dorman®Steel (Class 8) Metric Fine Hex Lock Nut with Nylon Insert
    0
    # 3769876755
    Steel (Class 8) Metric Fine Hex Lock Nut with Nylon Insert by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $8.51 - $8.53
  • Dorman® - Steel (Class 8) Metric Fine Hex Lock Nut with Nylon Ring Insert
    Dorman®Steel (Class 8) Metric Fine Hex Lock Nut with Nylon Ring Insert
    0
    # 3769876792
    Steel (Class 8) Metric Fine Hex Lock Nut with Nylon Ring Insert by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $2.97
  • Dorman® - Steel (Grade 2) SAE Coarse Hex Nut for Machine Screw
    Dorman®Steel (Grade 2) SAE Coarse Hex Nut for Machine Screw
    0
    # 3769876764
    Steel (Grade 2) SAE Coarse Hex Nut for Machine Screw by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...
    Designed to help to get your job done rightManufactured utilizing the highest quality materials
    $6.20 - $6.64
  • Dorman® - Steel (Grade 2) SAE Coarse Hex Nut with Nylon Ring Insert
    Dorman®Steel (Grade 2) SAE Coarse Hex Nut with Nylon Ring Insert
    0
    # 3769877610
    Steel (Grade 2) SAE Coarse Hex Nut with Nylon Ring Insert by Dorman®. These nuts are manufactured using durable materials and corrosion tested to ensure required strength and longevity. This product is made of high-quality materials to...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $9.39 - $11.20
  • Dorman® - Steel (Grade 2) SAE Fine Hex Lock Nut with Nylon Ring Insert
    Dorman®Steel (Grade 2) SAE Fine Hex Lock Nut with Nylon Ring Insert
    0
    # 3769876804
    Steel (Grade 2) SAE Fine Hex Lock Nut with Nylon Ring Insert by Dorman®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $2.97 - $9.39
  • Dorman® - Steel (Grade 2) SAE Fine Hex Nut with Nylon Ring Insert
    Dorman®Steel (Grade 2) SAE Fine Hex Nut with Nylon Ring Insert
    0
    # 3769876799
    Steel (Grade 2) SAE Fine Hex Nut with Nylon Ring Insert by Dorman®. These nuts are manufactured using durable materials and corrosion tested to ensure required strength and longevity. This product is made of high-quality materials to...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $8.53 - $10.08
  • Dorman® - Steel (Grade 8) SAE Coarse Hex Torque Lock Nut
    Dorman®Steel (Grade 8) SAE Coarse Hex Torque Lock Nut
    0
    # 3769877672
    Steel (Grade 8) SAE Coarse Hex Torque Lock Nut by Dorman®. These nuts are manufactured using durable materials and corrosion tested to ensure required strength and longevity. This product is made of high-quality materials to serve you...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $7.65
  • Dorman® - Steel (Grade 8) SAE Fine Hex Torque Lock Nut
    Dorman®Steel (Grade 8) SAE Fine Hex Torque Lock Nut
    0
    # 3769876706
    Steel (Grade 8) SAE Fine Hex Torque Lock Nut by Dorman®. These nuts are manufactured using durable materials and corrosion tested to ensure required strength and longevity. This product is made of high-quality materials to serve you for...
    Durable materials - manufactured to specific thread tolerance standardsCorrosion tested - hardware undergoes salt spray testing to ensure corrosion resistance
    $7.65 - $8.93
  • ARP® - Stainless Steel SAE Nut with Nylon Insert
    ARP®Stainless Steel SAE Nut with Nylon Insert
    0
    # 3769877615
    Stainless Steel SAE Nut with Nylon Insert by ARP®. These serrated hex nuts with flanged collars are available especially for carburetor, valve cover, front cover, oil pan studs and windage tray studs. Made from premium-quality material,...
    Precise manufacturing and high-grade materialsExceptional performance at a competitive price
    $5.00 - $8.81
  • ARP® - Steel SAE Nut with Nylon Insert
    ARP®Steel SAE Nut with Nylon Insert
    0
    # 3769877638
    Steel SAE Nut with Nylon Insert by ARP®. These serrated hex nuts with flanged collars are available especially for carburetor, valve cover, front cover, oil pan studs and windage tray studs. Made from premium-quality material, they are...
    Precise manufacturing and high-grade materialsExceptional performance at a competitive price
    $5.07 - $5.16
  • Marine Fasteners® - Stainless Steel (18-8) SAE Fine Hex Lock Nut with Nylon Insert
    Marine Fasteners®Stainless Steel (18-8) SAE Fine Hex Lock Nut with Nylon Insert
    0
    # 4699175855
    Stainless Steel (18-8) SAE Fine Hex Lock Nut with Nylon Insert by Marine Fasteners®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind....
    Designed to help to get your job done rightManufactured utilizing the highest quality materials
    $29.30 - $36.32
  • Pit Posse® - Aluminum Metric Mechanical Lock Nut
    Pit Posse®Aluminum Metric Mechanical Lock Nut
    0
    # 3769876748
    Aluminum Metric Mechanical Lock Nut by Pit Posse®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...
    Precisely engineered to ensure ultimate efficiencyBuilt to provide reliable performance for years
    $6.25
  • Seachoice® - Stainless Steel SAE Nut with Nylon Insert
    Seachoice®Stainless Steel SAE Nut with Nylon Insert
    0
    # 3769876720
    Stainless Steel SAE Nut with Nylon Insert by Seachoice®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
    Designed to help to get your job done rightManufactured utilizing the highest quality materials
    $8.98 - $100.27
  • Seachoice® - Stainless Steel SAE Nut with Nylon Insert in Blister Pack
    Seachoice®Stainless Steel SAE Nut with Nylon Insert in Blister Pack
    0
    # 3769877641
    Stainless Steel SAE Nut with Nylon Insert in Blister Pack by Seachoice®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $32.76 - $73.64




There are various kinds of equipment that contains bolted joints. The range of respective applications is wide and includes transportation, manufacturing, power generation, and more. In these joints, lock nuts provide a clamping force to hold the components of the joint and, correspondingly, the parts of equipment together. However, there are various factors that can weaken this clamping force. They include an under-tightened bolt, equipment vibrations, embedding of the nut into the joint surface on a micro level, and mechanical shocks caused by varying loads from certain kinds of machinery.

The resulting loosening is not just an unpleasant occurrence. It may lead to multiple malfunctions such as the leaks of gas or fluid, bolt’s breakage, or other kinds of damage which can harm the equipment and even lead to accidents. Therefore, you should make sure that your machine and its components are in perfect working order, and even such small parts as lock nuts are of proper quality. You can obtain reliable lock nuts in our store. Our range covers a variety of purposes; you can select spin lock nuts, mechanical lock nuts, and nylon inserts. Made from exceptionally durable materials, our products feature superior corrosion resistance, practicality, and overall quality.

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