About Nuts, Materials, and Finishes
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Steel Snap-In Nuts


Snap these nuts—also known as cage nuts—into square holes in thin material. They’re often used to mount servers and other equipment in electronics racks. Threads float inside the cage, so you can fasten a bolt at a slight angle to align off-center parts. Mounting legs expand to lock these nuts in place.
Install these nuts by hand, with pliers, or with a snap-in nut installation and removal tool.
Zinc-plated steel nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Pitch | For Panel Thick. | Square Hole Size | Wd. | Head Ht. | Pkg. Qty. | Pkg. | |
Metric Zinc-Plated Steel | ||||||||
---|---|---|---|---|---|---|---|---|
M6 | 1mm | 0.7mm to 1.6mm | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 000000 |
M6 | 1mm | 1.7mm to 2.6mm | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
M6 | 1mm | 2.4mm to 3.2mm | 0.375" to 0.38" | 0.54" | 0.25" | 25 | 000000000 | 00000 |
M6 | 1mm | 3.2mm to 3.9mm | 0.375" to 0.38" | 0.54" | 0.25" | 25 | 000000000 | 00000 |
Stainless Steel Snap-In Nuts


For excellent corrosion resistance in most environments, these nuts are made of 18-8 stainless steel. Snap them into square holes in thin material, and the mounting legs expand to lock them in place. Also known as cage nuts, the threads float inside the cage, so you can fasten a bolt at a slight angle to align off-center parts. These nuts are often used to mount servers and other equipment in electronics racks. They may be mildly magnetic.
Install these nuts by hand, with pliers, or with a snap-in nut installation and removal tool.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Pitch | For Panel Thick. | Square Hole Size | Wd. | Head Ht. | Pkg. Qty. | Pkg. | |
Metric 18-8 Stainless Steel | ||||||||
---|---|---|---|---|---|---|---|---|
M6 | 1mm | 0.7mm to 1.6mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
M6 | 1mm | 1.7mm to 2.6mm | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
M6 | 1mm | 2.4mm to 3.2mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
M6 | 1mm | 3.2mm to 3.9mm | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
Easy-to-Install Snap-In Nuts


Pinch the flexible plastic casing of these nuts to add threads to thin metal. Unlike typical rigid snap-in nuts, these squeeze into a square hole from the front or back of your material. Once installed, they stay put. They meet DIN EN 61373, so they’re certified for use in environments with heavy vibration—think a bumpy railcar. GR-63-CORE tested, they’ve also passed earthquake simulations. In your facility, this means you can trust them to hold tight to sensitive equipment, like the servers suspended on your electrical racks.
Also known as cage nuts, they come in two parts—the cage and the nut—that you combine before installation. Threads float inside the cage, so you can fasten a bolt at a slight angle to align with off-center parts.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Pitch, mm | For Panel Thick., mm | Square Hole Size | Wd. | Head Ht. | Case Material | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
M6 | 1 | 1 to 4 | 0.362" to 0.375" | 0.5" | 0.41" | Plastic | DIN EN 61373; GR-63-CORE, Issue 4 | 10 | 000000000 | 000000 |
Grounding Snap-In Nuts


Pave a safe path for electricity—these nuts dig into the mounting surface and cut through coatings to touch the metal below for a proper ground. They’re often used to mount servers and other equipment into electronics racks. All meet EIA-310 (Electronic Industries Alliance) specifications for use in standard 19" electronics racks. Simply snap these nuts, also known as cage nuts, into square holes.
Style B nuts have a flexible plastic casing, so you can install them with a pinch. Unlike rigid snap-in nuts, you can squeeze them into a hole from either side. As you fasten a bolt, the nut in the casing is pulled up, pushing its teeth into the mounting surface.
For technical drawings and 3-D models, click on a part number.
Style | Thread Size | Thread Pitch | For Panel Thick. | Square Hole Size | Wd. | Head Ht. | Case Material | Specifications Met | Pkg. Qty. | Pkg. | |
Metric Zinc-Plated Steel | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
B | M6 | 1mm | 1mm to 4mm | 0.362" to 0.375" | 0.5" | 0.45" | Plastic | EIA-310 | 10 | 000000000 | 000000 |
No-Slip Clip-On Barrel Nuts


These clip-on nuts have a barrel with multiple threads for secure thread engagement. Also known as U-nuts, they squeeze both sides of thin panels for a tighter grip than J-nuts.
Zinc-plated steel nuts are corrosion resistant in wet environments.
Black-phosphate steel nuts are mildly corrosion resistant in dry environments.
Corrosion-resistant-coated steel nuts hold up the best in wet and outdoor environments. The coating has been tested to extreme standards, including 720 hours of salt spray resistance.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Pitch | For Panel Thick. | Distance from Ctr. of Hole to Edge (A) | For Use With | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||
---|---|---|---|---|---|---|---|
M6 | 1mm | 0.5mm to 2.3mm | 14.5mm | Machine Screws | 10 | 000000000 | 000000 |
M6 | 1mm | 2mm to 5mm | 14.5mm | Machine Screws | 5 | 000000000 | 00000 |
M6 | 1mm | 3.4mm to 6.3mm | 14.5mm | Machine Screws | 10 | 000000000 | 00000 |
Black-Phosphate Steel | |||||||
M6 | 1mm | 0.8mm to 4mm | 12mm | Machine Screws | 25 | 000000000 | 00000 |
M6 | 1mm | 0.8mm to 4mm | 13.5mm | Machine Screws | 25 | 000000000 | 00000 |
M6 | 1mm | 0.8mm to 4mm | 19.5mm | Machine Screws | 25 | 000000000 | 00000 |
M6 | 1mm | 3.4mm to 6.3mm | 13.5mm | Machine Screws | 10 | 000000000 | 0000 |
M6 | 1mm | 4.3mm to 5.6mm | 21mm | Machine Screws | 5 | 000000000 | 00000 |
Corrosion-Resistant-Coated Steel | |||||||
M6 | 1mm | 0.5mm to 4mm | 13mm | Machine Screws | 10 | 000000000 | 0000 |
Clip-On Nuts for Flanged Edges

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Slide these nuts on the edge of a panel and position them by hand. Also known as G-style clip-on nuts, they have threads that float inside the retainer so you can install a bolt at a slight angle to align off-center parts.
Zinc-plated steel clip-on nuts are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Pitch | For Panel Thick. | Distance from Ctr. of Hole to Edge (A) | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||
---|---|---|---|---|---|---|
M6 | 1 mm | 1.75mm to 2mm | 8mm | 10 | 000000000 | 000000 |
Clip-On Nut Assortments


Keep a variety of clip-on nuts on hand to create fastening points for screws. Simply slide these nuts onto the edges of thin panels.
Low-profile nuts are for low-clearance applications. No-slip nuts squeeze both sides of the panel for a tight grip. They’re also known as U-nuts. Barrel nuts have multiple threads for secure thread engagement.
Number of Pieces | Includes | For Panel Thick. | Container Type | Each | |
Black-Phosphate Steel | |||||
---|---|---|---|---|---|
125 | 125 No-Slip Clip-On Barrel Nuts (8-32 to 3/8"-16, M4 to M10) | 0.025" to 0.248" | Plastic Box | 000000000 | 0000000 |
965 | 100 Clip-On Hex Nuts (1/4"-20 to 5/16"-18) 475 No-Slip Clip-On Barrel Nuts (10-24 to 3/8"-16, M6 to M10) 15 No-Slip Clip-On Barrel Nuts For Tapping Screws (No. 10) 375 Low-Profile No-Slip Clip-On Nuts For Tapping Screws (No. 6 to 1/4") | 0.025" to 0.236" | Metal Box | 000000000 | 000000 |