About Nuts, Materials, and Finishes
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Medium-Strength Steel Thin Hex Nuts
Also known as jam nuts, these are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place. They're suitable for fastening most machinery and equipment when used in conjunction with a standard hex nut.
Zinc-plated steel nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Left-Hand Threaded Medium-Strength Steel Thin Hex Nuts
These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place. They're suitable for fastening most machinery and equipment when used in conjunction with a standard hex nut. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade 5 | |||||
---|---|---|---|---|---|
7/16"-20 | 11/16" | 1/4" | 25 | 000000000 | 000000 |
High-Strength Steel Thin Hex Nuts—Grade 8
Also known as jam nuts, these are about half the height of standard hex nuts. Use in low-clearance applications or jam one against a standard hex nut to hold it in place. They're about 25% stronger than medium-strength steel thin hex nuts.
Zinc yellow-chromate-plated steel nuts are more corrosion resistant in wet environments than zinc-plated steel nuts.
For technical drawings and 3-D models, click on a part number.
Low-Strength Steel Thin Hex Nuts
Also known as jam nuts, these are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place. About half the strength of medium-strength steel thin nuts, use them for light duty fastening applications, such as securing access panels.
Nuts with fine and extra-fine thread spacing are less likely to loosen from vibration than nuts with coarse thread spacing.
Zinc-plated steel nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel Thin Hex Nuts
These nuts have good chemical resistance and may be mildly magnetic. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
---|---|---|---|---|---|
7/16"-20 | 11/16" | 1/4" | 50 | 000000000 | 000000 |
Left-Hand Threaded 18-8 Stainless Steel Thin Hex Nuts
These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They have good chemical resistance and may be mildly magnetic. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
---|---|---|---|---|---|---|
7/16"-20 | 11/16" | 1/4" | ANSI/ASME 18.2.2 | 1 | 000000000 | 00000 |
Mil. Spec. 18-8 Stainless Steel Thin Hex Nuts
Choose these nuts for their adherence to strict military standards for material and construction. Made of 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
---|---|---|---|---|---|---|
7/16"-20 | 11/16" | 1/4" | Fed. Spec. FF-N-836, MS35691-31 | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Thin Hex Nuts
These nuts have excellent chemical resistance and can be used in saltwater environments. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||
---|---|---|---|---|---|
7/16"-20 | 11/16" | 1/4" | 10 | 000000000 | 00000 |
Left-Hand Threaded Super-Corrosion-Resistant
316 Stainless Steel Thin Hex Nuts
With threads that tighten to the left and made of 316 stainless steel, these nuts won’t loosen from counterclockwise motion in saltwater and corrosive environments. They’re half the height of standard hex nuts, so they fit where there’s low clearance. Sometimes called jam nuts, you can also jam them against standard nuts to hold them in place when fastening machines and equipment.
For technical drawings and 3-D models, click on a part number.
Thread Size | Width | Height | Each | |
316 Stainless Steel | ||||
---|---|---|---|---|
7/16"-20 | 11/16" | 1/4" | 000000000 | 00000 |
Brass Thin Hex Nuts
These nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Brass | |||||
---|---|---|---|---|---|
7/16"-20 | 11/16" | 1/4" | 10 | 000000000 | 00000 |
Left-Hand Threaded Super-Corrosion-Resistant 316 Stainless Steel Hex Nuts
These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They have excellent chemical resistance and can be used in saltwater environments. Nuts may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||
---|---|---|---|---|---|
7/16"-20 | 11/16" | 3/8" | 1 | 000000000 | 000000 |
Low-Strength Steel Thin Nylon-Insert Locknuts
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. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
Zinc-plated steel locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||
---|---|---|---|---|---|---|
7/16"-20 | 5/8" | 5/16" | 220° | 100 | 000000000 | 000000 |
High-Strength Steel Thin Nylon-Insert Locknuts
Half the height of standard nylon-insert locknuts, use these in low-clearance applications or jam one against a hex nut to hold it in place. They have a nylon insert that grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use. Made from Grade 8 steel, they're about 25% stronger than medium-strength steel thin locknuts.
Black-oxide steel locknuts nuts mildly resist corrosion in dry environments and have a dark surface color.
Zinc- and zinc yellow-chromate plated steel locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel Thin Nylon-Insert Locknuts
These locknuts have good chemical resistance and may be mildly magnetic. They're about half the height of standard nylon-insert locknuts. Use them in low-clearance applications or jam one against a hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
---|---|---|---|---|---|---|
7/16"-20 | 5/8" | 5/16" | 220° | 5 | 000000000 | 00000 |
Mil. Spec. 18-8 Stainless Steel Thin Nylon-Insert Locknuts
Choose these locknuts for their adherence to strict military standards for material and construction. They have good chemical resistance and may be mildly magnetic. About half the height of standard nylon-insert locknuts, use them in low-clearance applications or jam one against a hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
---|---|---|---|---|---|---|---|
7/16"-20 | 11/16" | 21/64" | 250° | MS21083C7, NASM21083 | 1 | 000000000 | 000000 |
Super-Corrosion-Resistant 316 Stainless Steel Thin Nylon-Insert Locknuts
These locknuts have excellent resistance to chemicals and salt water. They're about half the height of standard nylon-insert locknuts. Use them in low-clearance applications or jam one against a hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||
---|---|---|---|---|---|---|
7/16"-20 | 5/8" | 5/16" | 220° | 25 | 000000000 | 000000 |
Steel Thin Flex-Top Locknuts for Heavy Vibration
About two-thirds the height of standard flex-top locknuts, use these in low-clearance applications or jam one against a hex nut to hold it in place. Threads at the top of the nut expand to grip the bolt on all sides for a stronger hold than distorted-thread locknuts. The strength of the bolt should match the strength of the nut to prevent damaging threads. These locknuts have equivalent strength to Grade 8 steel locknuts.
Cadmium-plated locknuts are corrosion resistant in wet environments. The plating adds lubricity so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||
---|---|---|---|---|---|
7/16"-20 | 5/8" | 21/64" | 5 | 000000000 | 000000 |
18-8 Stainless Steel Flanged Knurled-Head Thumb Nuts
These thumb nuts have good chemical resistance and may be mildly magnetic. The flange distributes the load over a large area and reduces stress where the nut meets the material surface. A knurled head provides a slip-resistant grip for controlled adjustment.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
---|---|---|---|---|---|---|---|
Thread Size | Dia. | Ht. | Head Dia. | Ht. | Threading | Each | |
18-8 Stainless Steel | |||||||
7/16"-20 | 11/16" | 5/16" | 1" | 17/32" | Fully Threaded | 000000000 | 000000 |
18-8 Stainless Steel Knurled-Head Thumb Nuts
These thumb nuts have good chemical resistance and may be mildly magnetic. The head is knurled for slip-resistant controlled adjustment and the collar raises the head to make it easy to grip.
For technical drawings and 3-D models, click on a part number.
Collar | ||||||||
---|---|---|---|---|---|---|---|---|
Thread Size | Dia. | Ht. | Head Dia. | Ht. | Threading | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
7/16"-20 | 5/8" | 3/4" | 1 1/8" | 15/16" | Fully Threaded | 1 | 000000000 | 000000 |