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Includes inch thread sizes. These Grade 8 steel locknuts are 25% stronger than our medium-strength steel nylon-insert locknuts.
A nylon insert keeps metric bolt threads from coming loose due to vibration, wear, and temperature swings. About 25% stronger than medium-strength steel locknuts, these nuts are made of high-strength, Class 10 steel.
Closely spaced metric threads prevent loosening from vibration. These Class 10 steel locknuts are 25% stronger than our medium-strength steel nylon-insert locknuts.
Made from Grade 5 steel, these locknuts are suitable for fastening most machinery and equipment.
Made from medium-strength steel with a nylon insert, these Class 8 metric locknuts are strong enough to use on most machinery and equipment that’s prone to vibration and temperature changes.
Get a grip on metric bolts exposed to vibration, wear, and changes in temperature. These metric locknuts have a nylon insert that holds onto bolts without damaging their threads.
Made from low-strength steel, these locknuts should be used for light duty fastening applications, such as securing.access panels.
Choose these locknuts for their adherence to strict military standards for material and construction. They’re low-strength steel, so they should be used for fastening panels and other light duty fastening applications.
These metric locknuts have good chemical resistance.
These locknuts have good chemical resistance.
Choose these locknuts for their adherence to strict military standards for material and construction.
More corrosion resistant than 18-8 stainless steel locknuts, these metric locknuts have excellent resistance to chemicals and salt water.
More corrosion resistant than 18-8 stainless steel locknuts, these locknuts have excellent resistance to chemicals and salt water.
Titanium locknuts have a high strength-to-weight ratio and are resistant to acids and salt water.
One-third the weight of steel, aluminum locknuts resist corrosion in wet environments.
Brass locknuts are corrosion resistant in wet environments and electrically conductive.
With a shorter hex height than standard DIN 985 locknuts, these nylon-insert locknuts meet international ISO 10511 dimensional standards and are easy to install in tight spaces.
These locknuts are about half the height of standard nylon-insert locknuts. Use them in light duty low clearance applications or jam one against a hex nut to hold it in place.
These Grade 8 locknuts are about 25% stronger than medium-strength steel thin locknuts.
Grade 5 locknuts are suitable for fastening most machinery and equipment when used in conjunction with a standard hex nut.
These locknuts have good chemical resistance and may be mildly magnetic.
More corrosion resistant than 18-8 stainless steel locknuts, these have excellent resistance to chemicals and salt water.
Known for their strength, these locknuts are zinc-plated to resist corrosion in wet environments.
Made from Grade 8 steel, these locknuts are about 25% stronger than the same locknut made with medium-strength steel.
Comparable in strength to Grade 8 bolts, these locknuts are about three times stronger than the same locknut made with low-strength steel.
Use these locknuts for light duty fastening applications, such as securing access panels.
Comparable in strength to Grade 8 bolts, these locknuts are about 25% stronger than medium-strength steel locknuts.
These metric locknuts have an irregularly shaped thread at the top of the nut that grips the bolt for a stronger hold than nylon-insert locknuts.
These locknuts have an irregularly shaped thread at the top of the nut that grips the bolt for a stronger hold than nylon-insert locknuts.
About half the strength of medium-strength steel locknuts, these are for light duty fastening applications, such as securing access panels.
These Grade 9 locknuts are about 20% stronger than high-strength steel locknuts and are often used in heavy machinery, such as earth-moving equipment.
These Grade 8 locknuts are about three times stronger than low-strength steel distorted-thread locknuts.
These locknuts tighten when turned to the left.
Strong enough for use with most machinery and equipment, these Class 8 metric locknuts have an irregularly shaped thread in the middle of the nut that grips bolts tighter than nylon-insert locknuts.
Threads at the top of these locknuts expand to grip the bolt on all sides for a stronger hold than distorted thread locknuts.
Threads at the top of these metric locknuts expand to grip the bolt on all sides for a stronger hold than distorted-thread locknuts.
Made from stainless steel, these metric flex-top locknuts resist chemicals and may be mildly magnetic.
Made from 18-8 stainless steel, these flex top locknuts have good chemical resistance and may be mildly magnetic.
Known for their strength, these steel locknuts are cadmium plated to resist corrosion in wet environments.
Stainless steel locknuts have excellent corrosion resistance in most environments.
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.
High-strength steel locknuts are about 25% stronger than medium-strength steel locknuts.
These locknuts are suitable for fastening most machinery and equipment.
The metric steel insert grips the threads and lifts away from the nut body when installed, isolating the insert from the nut's load to resist spinoff caused by vibration.
When installed, the steel insert grips the threads and lifts away from the nut body, isolating the insert from the nut's load to resist spinoff caused by vibration.
About two-thirds the height of standard steel-insert locknuts, use these locknuts in low-clearance applications or jam one against a hex nut to hold it in place.
These locknuts, also known as Fuji locknuts, maintain their holding power with reuse longer than nylon-insert locknuts. They have a spring ring that creates tension as you tighten the nut, keeping them in place.
For a secure hold where chemicals are a concern, these stainless steel locknuts have a spring that creates tension when tightened. Also known as Fuji locknuts.
These locknuts include a two-piece clamp that expands to grip the bolt on all sides and a concave jam nut that clamps the threads onto the bolt for added vibration resistance. They're also known as drake-style nuts.
Grip metric bolts more securely than nylon-insert flange locknuts—the irregularly shaped threads on these locknuts hold extra tight. They resist vibration and sudden shocks, even after multiple uses.
These flange locknuts are comparable in strength to Grade 8 bolts.
For a stronger hold than nylon-insert flange locknuts, these locknuts grip the bolt with an irregularly shaped thread. Made from Grade 5 steel, these locknuts are a good choice for fastening most machinery and equipment.
Choose these flange locknuts for their adherence to strict military standards for material and construction.
These flange locknuts have excellent resistance to chemicals and salt water. They have an irregularly shaped thread that grips the bolt for a stronger hold than nylon-insert flange locknuts.
Grade F nuts are comparable in strength to Grade 5 bolts.
Grade G nuts are comparable in strength to Grade 8 bolts.
An irregularly shaped thread grips the bolt for a stronger hold than nylon-insert cap locknuts. Made of 18-8 stainless steel, these cap locknuts have good chemical resistance.
A nylon insert on these metric nuts prevents vibration from loosening them, and a domed head protects the threads at the end of the bolt from damage and debris.
With a nylon patch bonded to their threads for added friction, these nuts resist coming loose from vibration. They’re 316 stainless steel, so they have excellent resistance to chemicals and salt water.
The nylon cap covers and grips the threads to resist loosening.
To resist loosening from vibration, these metric locknuts have a nylon patch bonded to their threads that adds friction. They have good chemical resistance and may be mildly magnetic because they’re stainless steel.
For a stronger hold than nylon-insert cap locknuts, these locknuts have an irregularly shaped thread that grips the bolt and resists loosening from vibration. They are made of Grade 2 steel, so they are about half the strength of medium-strength steel nuts and are often used in light duty applications, such as securing access panels.
With an irregularly shaped thread, these locknuts grip the bolt for a stronger hold than nylon-insert cap nuts and resist loosening from vibration. They’re made from 316 stainless steel, so they have excellent resistance to chemicals and salt water.
A nylon patch bonded to the threads of these reusable nuts adds friction to prevent loosening under vibration.
A nylon insert grips threads to resist loosening.