Nuts

Finished Hex Nuts
K-Lock Nuts
NY-Lock Nuts
Machine Screw Nuts

Applications for Nuts

It’s nearly impossible to discuss fasteners like bolts and machine screws — sizes, head styles, grades, and finishes — without considering the rest of the hardware, including machine screw nuts, finished hex nuts, k-lock nuts and more.

Nuts are used to secure a bolt or screw, along with washers to distribute pressure, relieve friction and prevent leaks. Nut manufacturers fabricate their products from a wide variety of metal and nonmetallic materials. The following are some of the most common types of nuts:

Nylon Inset Lock (Nylock Nuts)

This is the most common locking nut and has a nylon ring fabricated into its top. When threaded onto a bolt, the nylon ring conforms to the threads of the bolt. The interference fit generated between the bolt and nylon inserts locks the device into place.

For applications that require moderate strength, the nylon insert lock nut (Nylock Nut) represents one of the most common fastening solutions. It includes the following variants:

• Thin, Grade 2, Zinc-Plated
• Thin, Stainless Steel
• Grade 2, Zinc-Plated
• Grade 8, Yellow, Zinc-Plated
• Stainless Steel
• Heavy, Grade 2, Zinc-Plated
• Machine Screw, Stainless Steel
• Machine Screw, Grade 2, Zinc-Plated

For applications that require superior strength, Grade C lock nuts provide a solid solution — with the ability to withstand temperatures of under 300° F for extended durations and without degradation.

Hex Nuts

Most hex nuts consist of low carbon steel, which the manufacturer hardens to a Grade 5 or Grade 8. Finished hex nuts are either plain or zinc-plated, which matches the grade color code. The various finishes for hex nuts include:

• Aluminum
• Brass
• Grade 2, Plain Finish
• Grade 2, Zinc-Plated
• Grade 5, Zinc-Plated
• Grade 5, Zinc-Plated
• Grade 8, Plain Finish
• Grade 8, Yellow, Zinc-Plated
• Silicon Bronze
• Stainless Steel 304 (18-8)
• Stainless Steel 316
• Hot Dip Galvanized
• Nylon

Machine screw nut options include:

• Brass
• Nylon
• Silicon Bronze
• Stainless Steel 304 (18-8)
• Stainless Steel 316
• Zinc-Plated

K-Lock Nuts (Keps Nuts) are usually zinc-plated.

finished hex nut

FINISHED HEX NUTS

  • ZINC PLATED
PART # SIZE CASE QUANTITY PART # SIZE CASE QUANTITY
7900010 1/4″ – 20 100, 1000 7900070 5/8″ – 11 100, 1000
7900020 5/16″ – 18 100, 1000 7900080 3/4″ – 10 100, 1000
7900030 3/8″ – 16 100, 1000 7900100 1″ – 8 100, 1000
7900050 1/2″ – 13 100, 1000
k lock

K-LOCK NUTS

PART # SIZE CASE QUANTITY PART # SIZE CASE QUANTITY
7920002 6″ – 32 100, 1000 7920008 10″ – 32 100, 1000
7920004 8″ – 32 100, 1000 7920010 1/4″ – 20 100, 1000
7920006 10″ – 24 100, 1000
ny lock blue ring

NY-LOCK NUTS

PART # SIZE CASE QUANTITY PART # SIZE CASE QUANTITY
7901002 6-32 100, 1000 7901006 10-24 100, 1000
7901004 8-32 100, 1000 7901007 10-32 100, 1000
machine screw nuts

MACHINE SCREW NUTS

PART # SIZE CASE QUANTITY PART # SIZE CASE QUANTITY
7901002 6-32 100, 1000 7901006 10-24 100, 1000
7901004 8-32 100, 1000 7901007 10-32 100, 1000

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 screw driver