About Nuts, Materials, and Finishes
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Plastic Snap-In Nuts
These nylon nuts are chemical resistant, nonconductive, and lightweight. Inserting a screw pushes the prongs against the panel to secure the nut.
For technical drawings and 3-D models, click on a part number.

For Screw Size | For Panel Thick. | Square Hole Size | Lg. | Wd. | Ht. | Flange Thick. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
No. 4 | 0.031" to 1/8" | 0.275" to 0.285" | 3/8" | 3/8" | 7/32" | 1/16" | 165° | Off-White | 50 | 000000000 | 000000 |
No. 6 | 0.032" to 0.156" | 0.2" to 0.27" | 7/16" | 5/16" | 5/16" | 1/32" | 165° | Off-White | 50 | 000000000 | 00000 |
No. 6 | 0.062" to 0.275" | 0.265" to 0.27" | 1/2" | 3/8" | 7/16" | 1/32" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 6, No. 8 | 0.031" to 1/8" | 0.245" to 0.255" | 3/8" | 3/8" | 9/32" | 1/32" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 8 | 1/32" to 5/32" | 0.265" to 0.281" | 3/8" | 3/8" | 11/32" | 1/32" | 165° | Off-White | 50 | 000000000 | 00000 |
No. 8 | 0.078" to 0.175" | 0.285" to 0.295" | 3/8" | 3/8" | 11/32" | 1/32" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 8, No. 10 | 0.218" to 0.23" | 0.35" to 0.355" | 15/32" | 15/32" | 13/32" | 1/16" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 10 | 1/32" to 5/32" | 0.38" to 0.39" | 5/8" | 5/8" | 5/16" | 3/32" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 10 | 0.032" to 0.234" | 0.32" to 0.335" | 15/32" | 15/32" | 13/32" | 1/16" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 10 | 0.064" to 0.187" | 0.37" to 0.39" | 19/32" | 19/32" | 9/32" | 3/32" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 12 | 0.031" to 0.1" | 0.37" to 0.375" | 5/8" | 5/8" | 9/32" | 3/32" | 165° | Off-White | 50 | 000000000 | 00000 |

For Screw Size | For Panel Thick. | Square Hole Size | OD | Ht. | Flange Thick. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
No. 6 | 0.032" to 0.15" | 0.28" to 0.285" | 1/2" | 11/32" | 23/32" | 165° | Off-White | 25 | 000000000 | 000000 |
No. 6 | 0.062" to 0.165" | 0.27" to 0.28" | 3/8" | 5/16" | 3/32" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 8 | 0.031" to 0.156" | 0.275" to 0.29" | 1/2" | 5/16" | 3/8" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 8 | 0.062" to 0.17" | 0.275" to 0.28" | 1/2" | 5/16" | 5/16" | 165° | Off-White | 25 | 000000000 | 00000 |
No. 10 | 0.031" to 0.16" | 0.305" to 0.31" | 1/2" | 9/32" | 1/32" | 165° | Off-White | 50 | 000000000 | 00000 |
No. 12 | 0.032" to 1/8" | 0.35" to 0.355" | 17/32" | 9/32" | 1/8" | 165° | Off-White | 25 | 000000000 | 00000 |
1/4" | 0.031" to 1/8" | 0.37" to 0.375" | 5/8" | 9/32" | 1 1/16" | 165° | Off-White | 10 | 000000000 | 00000 |
1/4" | 1/32" to 5/32" | 0.33" to 0.343" | 9/16" | 11/32" | 1/16" | 165° | Off-White | 25 | 000000000 | 00000 |
5/16" | 0.032" to 0.135" | 0.415" to 0.43" | 3/4" | 5/16" | 1/16" | 165° | Off-White | 10 | 000000000 | 00000 |
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.
Black-phosphate steel nuts are mildly corrosion resistant in dry environments.
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. | |
Black-Phosphate Steel | ||||||||
---|---|---|---|---|---|---|---|---|
10-24 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 000000 |
10-24 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
10-32 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 15 | 000000000 | 0000 |
10-32 | __ | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 10 | 000000000 | 0000 |
1/4"-20 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 0000 |
1/4"-20 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
1/4"-20 | __ | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 0000 |
1/4"-20 | __ | 0.125" to 0.156" | 0.375" to 0.38" | 0.52" | 0.25" | 10 | 000000000 | 00000 |
5/16"-18 | __ | 0.023" to 0.063" | 0.503" to 0.508" | 0.65" | 0.33" | 10 | 000000000 | 00000 |
5/16"-18 | __ | 0.057" to 0.092" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 00000 |
5/16"-18 | __ | 0.093" to 0.126" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
3/8"-16 | __ | 0.093" to 0.126" | 0.588" to 0.593" | 0.87" | 0.41" | 5 | 000000000 | 0000 |
Zinc-Plated Steel | ||||||||
6-32 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
8-32 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
8-32 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
8-32 | __ | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 10 | 000000000 | 0000 |
10-24 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
10-24 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
10-24 | __ | 0.093" to 0.126" | 0.375" to 0.38" | 0.54" | 0.25" | 25 | 000000000 | 00000 |
10-32 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
10-32 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
10-32 | __ | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
10-32 | __ | 0.125" to 0.156" | 0.375" to 0.38" | 0.54" | 0.25" | 25 | 000000000 | 00000 |
12-24 | __ | 0.063" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
1/4"-20 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
1/4"-20 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
1/4"-20 | __ | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
1/4"-20 | __ | 0.125" to 0.156" | 0.375" to 0.38" | 0.53" | 0.25" | 25 | 000000000 | 00000 |
5/16"-18 | __ | 0.028" to 0.056" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
5/16"-18 | __ | 0.057" to 0.092" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
5/16"-18 | __ | 0.093" to 0.126" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
5/16"-18 | __ | 0.127" to 0.162" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 00000 |
3/8"-16 | __ | 0.028" to 0.056" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 00000 |
3/8"-16 | __ | 0.057" to 0.092" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 00000 |
3/8"-16 | __ | 0.093" to 0.126" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
3/8"-16 | __ | 0.127" to 0.162" | 0.503" to 0.508" | 0.7" | 0.3" | 15 | 000000000 | 00000 |
3/8"-16 | __ | 0.162" to 0.21" | 0.573" to 0.578" | 0.87" | 0.41" | 1 | 000000000 | 0000 |
3/8"-16 | __ | 0.24" to 0.26" | 0.588" to 0.593" | 0.87" | 0.41" | 1 | 000000000 | 0000 |
1/2"-13 | __ | 0.093" to 0.126" | 0.588" to 0.593" | 0.87" | 0.41" | 5 | 000000000 | 00000 |
Metric Black-Phosphate Steel | ||||||||
M8 | 1.25mm | 6.1mm to 6.6mm | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
Metric Zinc-Plated Steel | ||||||||
M5 | 0.8mm | 0.7mm to 1.6mm | 0.375" to 0.38" | 0.54" | 0.25" | 25 | 000000000 | 00000 |
M5 | 0.8mm | 1.7mm to 2.6mm | 0.375" to 0.38" | 0.54" | 0.25" | 25 | 000000000 | 00000 |
M5 | 0.8mm | 2.4mm to 3.2mm | 0.375" to 0.38" | 0.54" | 0.25" | 25 | 000000000 | 00000 |
M5 | 0.8mm | 3.2mm to 3.9mm | 0.375" to 0.38" | 0.54" | 0.25" | 25 | 000000000 | 00000 |
M6 | 1mm | 0.7mm to 1.6mm | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
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 |
M8 | 1.25mm | 0.7mm to 1.4mm | 0.503" to 0.508" | 0.66" | 0.3" | 1 | 000000000 | 0000 |
M8 | 1.25mm | 1.5mm to 2.3mm | 0.503" to 0.508" | 0.7" | 0.3" | 10 | 000000000 | 00000 |
M8 | 1.25mm | 2.4mm to 3.2mm | 0.503" to 0.508" | 0.7" | 0.3" | 10 | 000000000 | 00000 |
M8 | 1.25mm | 3.2mm to 4.1mm | 0.503" to 0.508" | 0.66" | 0.3" | 1 | 000000000 | 0000 |
M10 | 1.5mm | 1.5mm to 2.3mm | 0.503" to 0.508" | 0.7" | 0.3" | 10 | 000000000 | 00000 |
M10 | 1.5mm | 2.4mm to 3.2mm | 0.503" to 0.508" | 0.7" | 0.3" | 10 | 000000000 | 00000 |
M10 | 1.5mm | 3.2mm to 4.1mm | 0.503" to 0.508" | 0.66" | 0.3" | 1 | 000000000 | 0000 |
M10 | 1.5mm | 4.1mm to 5mm | 0.503" to 0.508" | 0.66" | 0.3" | 1 | 000000000 | 0000 |
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. | |
18-8 Stainless Steel | ||||||||
---|---|---|---|---|---|---|---|---|
10-24 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 000000 |
10-24 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
10-24 | __ | 0.093" to 0.126" | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
10-24 | __ | 0.125" to 0.156" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
10-32 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
10-32 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.49" | 0.25" | 5 | 000000000 | 0000 |
10-32 | __ | 0.093" to 0.126" | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
10-32 | __ | 0.125" to 0.156" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
1/4"-20 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
1/4"-20 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
1/4"-20 | __ | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
1/4"-20 | __ | 0.125" to 0.156" | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
5/16"-18 | __ | 0.093" to 0.126" | 0.503" to 0.508" | 0.66" | 0.29" | 1 | 000000000 | 0000 |
Metric 18-8 Stainless Steel | ||||||||
M5 | 0.8mm | 0.7mm to 1.6mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
M5 | 0.8mm | 1.7mm to 2.6mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
M5 | 0.8mm | 2.4mm to 3.2mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
M5 | 0.8mm | 3.2mm to 3.9mm | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
M6 | 1mm | 0.7mm to 1.6mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
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 A nuts are green, a color commonly used to identify grounding components. They include a bolt with a serrated flange—while the nut’s teeth bite into one side, the bolt's serrations bite from the other. Install the nut by hand, with pliers, or with a snap-in nut installation and removal tool.
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 | Color | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
A | 12-24 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | __ | Green | EIA-310 | 1 | 000000000 | 00000 |
Metric Zinc-Plated Steel | ||||||||||||
B | M6 | 1mm | 1mm to 4mm | 0.362" to 0.375" | 0.5" | 0.45" | Plastic | __ | EIA-310 | 10 | 000000000 | 00000 |