About Turnbuckles and End Fittings
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About Nuts, Materials, and Finishes
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Left-Hand Threaded Low-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. About half the strength of medium-strength steel thin nuts, use them for light duty fastening applications, such as securing access panels.
Black-oxide steel nuts have a dark surface color and are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
| Thread Size  | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Steel—Grade 2 | ||||||
|---|---|---|---|---|---|---|
| 10-24 | 3/8" | 7/64" | ASTM A108 | 1 | 000000000 | 00000 |
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. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
|---|---|---|---|---|---|
| 10-24 | 3/8" | 7/64" | 1 | 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 | ||||
|---|---|---|---|---|
| 10-24 | 3/8" | 7/64" | 000000000 | 00000 |
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.
Black corrosion-resistant-coated steel nuts are more corrosion resistant than zinc-plated nuts in wet environments. They're also known as black luster locknuts.
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.
Black-oxide stainless steel locknuts have a dark surface color.
For technical drawings and 3-D models, click on a part number.
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 | ||||||
|---|---|---|---|---|---|---|
| 10-24 | 3/8" | 11/64" | 220° | 50 | 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.
Plain steel locknuts are uncoated and ready for painting.
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.
Stainless Steel Thin Flex-Top Locknuts for Heavy Vibration
These 18-8 stainless steel locknuts have good chemical resistance and may be mildly magnetic. They're about two-thirds the height of standard flex-top locknuts. Use them 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.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
|---|---|---|---|---|---|
| 10-24 | 3/8" | 3/16" | 5 | 000000000 | 000000 |
Steel High-Torque Low-Profile Thumb Nuts
Insert a rod or pin into the holes for increased torque while tightening. Use these thumb nuts in low-clearance applications or jam one against another nut to hold it in place. The knurls provide a slip-resistant grip for controlled adjustment. A black-oxide finish provides mild corrosion resistance in dry environments.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Head Dia. | Ht. | No. of Holes | Hole Dia. | Each | |
Black-Oxide Steel | ||||||
|---|---|---|---|---|---|---|
| 10-24 | 3/4" | 1/4" | 4 | 3/32" | 000000000 | 00000 |
Stainless Steel High-Torque Low-Profile Thumb Nuts
These thumb nuts have good chemical resistance and may be mildly magnetic. You can insert a rod or pin into the holes for increased torque while tightening. Use them in low-clearance applications or jam one against another nut to hold it in place. The knurls provide a slip-resistant grip for controlled adjustment.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Head Dia. | Ht. | No. of Holes | Hole Dia. | Each | |
18-8 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| 10-24 | 3/4" | 1/4" | 4 | 3/32" | 000000000 | 00000 |
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.
Passivated stainless steel nuts provide added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
Super-Corrosion-Resistant 316 Stainless
Steel Flanged Knurled-Head Thumb Nuts
These thumb nuts have excellent chemical resistance and can be used in saltwater environments. 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. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||
| 10-24 | 13/32" | 3/16" | 1/2" | 11/32" | 1 | 000000000 | 000000 |
Brass Flanged Knurled-Head Thumb Nuts
These thumb nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. 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.
Zinc-plated brass nuts are more corrosion resistant than plain brass nuts.
For technical drawings and 3-D models, click on a part number.
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.
Black-oxide stainless steel nuts have a dark surface color.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Threading | Thread Dp. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
| 10-24 | 3/8" | 1/4" | 1/2" | 7/16" | Fully Threaded | __ | 1 | 000000000 | 00000 |
| 10-24 | 3/8" | 1/4" | 1" | 7/16" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 10-24 | 3/8" | 1/2" | 1/2" | 11/16" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 10-24 | 3/8" | 1/2" | 1" | 11/16" | Partially Threaded | 1/4" | 1 | 000000000 | 0000 |
Black Oxide 18-8 Stainless Steel | |||||||||
| 10-24 | 3/8" | 1/4" | 1" | 7/16" | Fully Threaded | __ | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Knurled-Head Thumb Nuts
These thumb nuts have excellent chemical resistance and can be used in saltwater environments. The head is knurled for slip-resistant controlled adjustment and the collar raises the head to make it easy to grip. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||
| 10-24 | 3/8" | 1/4" | 1/2" | 7/16" | 1 | 000000000 | 00000 |
Reinforced Plastic Knurled-Head Thumb Nuts
An aluminum insert with strong threads withstands more torque during installation. They're chemical resistant, nonconductive, and lightweight. 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. | Temp. Range, °F | Color | Pkg. Qty. | Pkg. | |
Acetal Plastic | |||||||||
| 10-24 | 31/64" | 1/8" | 5/8" | 19/64" | 32° to 180° | Black | 10 | 000000000 | 00000 |
Plastic Knurled-Head Thumb Nuts
These nylon thumb nuts are chemical resistant, nonconductive, and lightweight. 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. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | |||||||||
| 10-24 | 3/8" | 1/4" | 1/2" | 7/16" | 200° | Black | 1 | 000000000 | 00000 |
Jam Nuts for Turnbuckles
Tighten these nuts against the turnbuckle body to prevent the end fitting from unscrewing.
For technical drawings and 3-D models, click on a part number.