Flex-Top Expanding Locknuts

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187 Products

About Nuts, Materials, and Finishes

Steel Flex-Top Locknuts for Heavy Vibration

Threads at the top of these locknuts expand to grip the bolt on all sides for a stronger hold than distorted thread locknuts.

Metric Steel Flex-Top Locknuts for Heavy Vibration

Threads at the top of these metric locknuts expand to grip the bolt on all sides for a stronger hold than distorted-thread locknuts.

Mil. Spec. Steel Flex-Top
Locknuts for Heavy Vibration

Choose these locknuts for their adherence to strict military standards for material and construction.

Stainless Steel Flex-Top
Locknuts for Heavy Vibration

Made from 18-8 stainless steel, these flex top locknuts have good chemical resistance and may be mildly magnetic.

Metric Stainless Steel Flex-Top
Locknuts for Heavy Vibration

Made from stainless steel, these metric flex-top locknuts resist chemicals and may be mildly magnetic.

Mil. Spec. Stainless Steel Flex-Top
Locknuts for Heavy Vibration

Choose these locknuts for their adherence to strict military standards for material and construction.

Steel Thin Flex-Top Locknuts for Heavy Vibration

Known for their strength, these steel locknuts are cadmium plated to resist corrosion in wet environments.

Stainless Steel Thin Flex-Top
Locknuts for Heavy Vibration

Stainless steel locknuts have excellent corrosion resistance in most environments.

Steel Heavy Flex-Top Locknuts for Heavy Vibration

Known for their strength, these steel locknuts are cadmium plated to resist corrosion in wet environments.

Stainless Steel Heavy Flex-Top
Locknuts for Heavy Vibration

Stainless steel locknuts have excellent corrosion resistance in most environments.

Thin Heavy Flex-Top Locknuts for Heavy Vibration

About half the height and 10% wider than standard flex-top locknuts, these locknuts are often referred to as thin heavy locknuts. Use them in low-clearance applications or jam one against a heavy hex nut to hold it in place.

About Nuts, Materials, and Finishes

Flex-Top Locknuts for Heavy Vibration

Steel Flex-Top Locknuts for Heavy Vibration

Metric Steel Flex-Top Locknuts for Heavy Vibration

Mil. Spec. Steel Flex-TopLocknuts for Heavy Vibration

Stainless Steel Flex-TopLocknuts for Heavy Vibration

Metric Stainless Steel Flex-TopLocknuts for Heavy Vibration

Mil. Spec. Stainless Steel Flex-TopLocknuts for Heavy Vibration