About Nuts, Materials, and Finishes
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Screw-Mount Nuts
These nuts have three mounting holes to accept screws and rivets. Insert the barrel through a hole or fasten the base with the barrel facing upward for use with thin materials. Since the base is flanged, it helps spread out the load. A larger base means more room for weight to spread. The longer the barrel, the more thread engagement with your screw.
Style B nuts can also be welded for a stronger, permanent hold. The three projections on their base concentrate your weld and create room for heat to dissipate, protecting threads from deforming.
Zinc-plated steel nuts resist corrosion in wet environments.
Base | Barrel | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Style | Thread Size | Dia. | Thick. | Dia. | Ht. | Mounting Hole Dia. | No. of Projections | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||
| A | 6-32 | 9/16" | 1/32" | 11/64" | 1/4" | 5/64" | __ | 50 | 000000000 | 000000 |
| A | 8-32 | 23/32" | 1/32" | 7/32" | 1/4" | 7/64" | __ | 50 | 000000000 | 00000 |
| A | 10-24 | 3/4" | 1/32" | 1/4" | 9/32" | 7/64" | __ | 25 | 000000000 | 00000 |
| A | 10-32 | 3/4" | 3/64" | 1/4" | 9/32" | 7/64" | __ | 50 | 000000000 | 00000 |
Steel | ||||||||||
| A | 1/4"-20 | 3/4" | 3/64" | 5/16" | 1/4" | 7/64" | __ | 25 | 000000000 | 00000 |
| A | 1/4"-20 | 3/4" | 3/64" | 5/16" | 5/16" | 7/64" | __ | 50 | 000000000 | 00000 |
| A | 1/4"-20 | 3/4" | 3/64" | 5/16" | 7/16" | 7/64" | __ | 50 | 000000000 | 00000 |
| A | 1/4"-20 | 3/4" | 3/64" | 5/16" | 9/16" | 7/64" | __ | 25 | 000000000 | 0000 |
| A | 1/4"-20 | 3/4" | 3/64" | 5/16" | 7/8" | 7/64" | __ | 25 | 000000000 | 00000 |
| A | 5/16"-18 | 7/8" | 1/16" | 3/8" | 3/8" | 7/64" | __ | 25 | 000000000 | 00000 |
| A | 5/16"-18 | 7/8" | 1/16" | 3/8" | 5/8" | 7/64" | __ | 25 | 000000000 | 00000 |
| A | 5/16"-18 | 7/8" | 1/16" | 3/8" | 7/8" | 7/64" | __ | 10 | 000000000 | 0000 |
| A | 3/8"-16 | 1" | 1/16" | 7/16" | 7/16" | 9/64" | __ | 25 | 000000000 | 00000 |
| A | 3/8"-16 | 1" | 1/16" | 7/16" | 5/8" | 9/64" | __ | 10 | 000000000 | 00000 |
| A | 3/8"-16 | 1 1/4" | 5/64" | 15/32" | 3/4" | 9/64" | __ | 10 | 000000000 | 00000 |
| A | 1/2"-13 | 1 1/4" | 3/32" | 19/32" | 3/8" | 5/32" | __ | 10 | 000000000 | 00000 |
| A | 5/8"-11 | 1 7/16" | 3/32" | 23/32" | 3/8" | 5/32" | __ | 10 | 000000000 | 00000 |
| B | 1/4"-20 | 3/4" | 3/64" | 5/16" | 5/16" | 7/64" | 3 | 25 | 000000000 | 00000 |
| B | 1/4"-20 | 3/4" | 3/64" | 5/16" | 7/16" | 7/64" | 3 | 25 | 000000000 | 00000 |
| B | 1/4"-20 | 3/4" | 3/64" | 5/16" | 9/16" | 7/64" | 3 | 25 | 000000000 | 0000 |
| B | 5/16"-18 | 7/8" | 1/16" | 3/8" | 3/8" | 7/64" | 3 | 25 | 000000000 | 00000 |
| B | 5/16"-18 | 7/8" | 1/16" | 3/8" | 5/8" | 7/64" | 3 | 25 | 000000000 | 00000 |
| B | 1/2"-13 | 1 1/4" | 3/32" | 19/32" | 3/8" | 5/32" | 3 | 10 | 000000000 | 00000 |
| B | 5/8"-11 | 1 7/16" | 3/32" | 23/32" | 3/8" | 5/32" | 3 | 10 | 000000000 | 00000 |
Thread | Base | Barrel | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Style | Size | Pitch, mm | Dia., mm | Thick., mm | Dia., mm. | Ht., mm | Mounting Hole Dia., mm | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
| A | M10 | 1.5 | 25.4 | 1.6 | 11.5 | 11.1 | 3.7 | 10 | 000000000 | 000000 |
Screw-Mount Nuts for Wood
These screw-mount nuts are often used to attach glides and levels to wood. Made from zinc alloy, they're corrosion resistant in wet environments.
Mil. Spec. Rivet-Mount Nuts
Create threads in hard-to-work areas—where you can’t reach the back of a workpiece, or material is too thin to be tapped. For a strong grip, these nuts have distorted threads that increase friction with bolts. Because they mount with two rivets, they won’t spin when you’re tightening screws. However, these nuts do move inside their retainers, which lets you install bolts at a slight angle; use them to align with off-center parts. All meet military guidelines for dimensions and material.
Cadmium-plated nuts resist corrosion in industrial and saltwater environments, although will lose their corrosion resistance over 450° F. The cadmium plating also adds lubricity, making these nuts easy to install.
A286 stainless steel nuts are corrosion resistant. Silver-plated stainless steel nuts withstand temperatures up to 800° F. The silver plating also adds lubricity and prevents seizing caused by friction between nuts and bolts.
Lubricated nuts thread onto bolts smoothly.
Base | Barrel | Mounting | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | No. of Holes | Hole Dia. | Hole Ctr.-to-Ctr. | Specifications Met | Each | |
Steel—Unlubricated | |||||||||||
| 4-40 | 21/32" | 5/16" | 3/32" | 0.125" | 1/16" | 2 | 0.098" | 13/32" | MS21075-04N | 000000000 | 00000 |
| 6-32 | 11/16" | 11/32" | 3/32" | 0.172" | 5/64" | 2 | 0.098" | 7/16" | MS21075-06N | 000000000 | 0000 |
| 8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21075-08N | 000000000 | 0000 |
| 10-32 | 47/64" | 13/32" | 3/32" | 0.234" | 5/32" | 2 | 0.098" | 1/2" | MS21075-3N | 000000000 | 0000 |
| 1/4"-28 | 51/64" | 1/2" | 3/32" | 0.313" | 3/16" | 2 | 0.098" | 9/16" | MS21075-4N | 000000000 | 0000 |
Cadmium-Plated Steel—Lubricated | |||||||||||
| 4-40 | 21/32" | 5/16" | 3/32" | 0.125" | 1/16" | 2 | 0.098" | 13/32" | MS21075L04N | 000000000 | 0000 |
| 6-32 | 11/16" | 11/32" | 3/32" | 0.172" | 5/64" | 2 | 0.098" | 7/16" | MS21075L06N | 000000000 | 0000 |
| 8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21075L08N | 000000000 | 0000 |
| 10-32 | 47/64" | 13/32" | 3/32" | 0.234" | 5/32" | 2 | 0.098" | 1/2" | MS21075L3N | 000000000 | 0000 |
| 1/4"-28 | 51/64" | 1/2" | 3/32" | 0.313" | 3/16" | 2 | 0.098" | 9/16" | MS21075L4N | 000000000 | 0000 |
Carbon Steel—Unlubricated | |||||||||||
| 6-32 | 61/64" | 13/32" | 1/32" | 0.172" | 11/64" | 2 | 0.098" | 11/16" | MS21059-06 | 000000000 | 0000 |
| 8-32 | 61/64" | 13/32" | 1/32" | 0.203" | 7/32" | 2 | 0.098" | 11/16" | MS21059-08 | 000000000 | 0000 |
| 10-32 | 61/64" | 13/32" | 1/32" | 0.234" | 7/32" | 2 | 0.098" | 11/16" | MS21059-3 | 000000000 | 0000 |
| 1/4"-28 | 1 19/64" | 33/64" | 1/32" | 0.313" | 1/4" | 2 | 0.098" | 1" | MS21059-4 | 000000000 | 0000 |
Cadmium-Plated Carbon Steel—Lubricated | |||||||||||
| 4-40 | 61/64" | 13/32" | 1/32" | 0.141" | 9/64" | 2 | 0.098" | 11/16" | MS21059L04 | 000000000 | 0000 |
| 6-32 | 61/64" | 13/32" | 1/32" | 0.172" | 11/64" | 2 | 0.098" | 11/16" | MS21059L06 | 000000000 | 0000 |
| 8-32 | 61/64" | 13/32" | 1/32" | 0.203" | 7/32" | 2 | 0.098" | 11/16" | MS21059L08 | 000000000 | 0000 |
| 10-32 | 61/64" | 13/32" | 1/32" | 0.234" | 7/32" | 2 | 0.098" | 11/16" | MS21059L3 | 000000000 | 0000 |
| 1/4"-28 | 1 19/64" | 33/64" | 1/32" | 0.313" | 1/4" | 2 | 0.098" | 1" | MS21059L4 | 000000000 | 0000 |
| 5/16"-24 | 1 19/64" | 39/64" | 3/64" | 0.375" | 9/32" | 2 | 0.13" | 1" | MS21059L5 | 000000000 | 00000 |
| 3/8"-24 | 1 19/64" | 43/64" | 1/16" | 0.453" | 19/64" | 2 | 0.13" | 1" | MS21059L6 | 000000000 | 00000 |
A286 Stainless Steel—Lubricated | |||||||||||
| 4-40 | 21/32" | 5/16" | 3/32" | 0.125" | 1/16" | 2 | 0.098" | 13/32" | MS21076L04N | 000000000 | 00000 |
| 6-32 | 11/16" | 11/32" | 3/32" | 0.172" | 5/64" | 2 | 0.098" | 7/16" | MS21076L06N | 000000000 | 00000 |
| 6-32 | 61/64" | 13/32" | 1/32" | 0.172" | 11/64" | 2 | 0.098" | 11/16" | MS21060L06 | 000000000 | 00000 |
| 8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21076L08N | 000000000 | 0000 |
| 8-32 | 61/64" | 13/32" | 1/32" | 0.203" | 7/32" | 2 | 0.098" | 11/16" | MS21060L08 | 000000000 | 0000 |
| 10-32 | 47/64" | 13/32" | 3/32" | 0.234" | 5/32" | 2 | 0.098" | 1/2" | MS21076L3N | 000000000 | 0000 |
| 10-32 | 61/64" | 13/32" | 1/32" | 0.234" | 7/32" | 2 | 0.098" | 11/16" | MS21060L3 | 000000000 | 0000 |
| 1/4"-28 | 51/64" | 1/2" | 3/32" | 0.313" | 3/16" | 2 | 0.098" | 9/16" | MS21076L4N | 000000000 | 0000 |
| 1/4"-28 | 1 19/64" | 33/64" | 1/32" | 0.313" | 1/4" | 2 | 0.098" | 1" | MS21060L4 | 000000000 | 00000 |
| 5/16"-24 | 1 1/64" | 37/64" | 7/64" | 0.391" | 7/32" | 2 | 0.13" | 23/32" | MS21076L5N | 000000000 | 00000 |
| 5/16"-24 | 1 19/64" | 39/64" | 3/64" | 0.375" | 9/32" | 2 | 0.13" | 1" | MS21060L5 | 000000000 | 00000 |
| 3/8"-24 | 1 19/64" | 43/64" | 1/16" | 0.453" | 19/64" | 2 | 0.13" | 1" | MS21060L6 | 000000000 | 00000 |
Silver-Plated A286 Stainless Steel—Unlubricated | |||||||||||
| 4-40 | 21/32" | 5/16" | 3/32" | 0.125" | 1/16" | 2 | 0.098" | 13/32" | MS21076-04N | 000000000 | 00000 |
| 6-32 | 61/64" | 13/32" | 1/32" | 0.172" | 11/64" | 2 | 0.098" | 11/16" | MS21060-06 | 000000000 | 0000 |
| 8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21076-08N | 000000000 | 00000 |
| 10-32 | 47/64" | 13/32" | 3/32" | 0.234" | 5/32" | 2 | 0.098" | 1/2" | MS21076-3N | 000000000 | 0000 |
| 10-32 | 61/64" | 13/32" | 1/32" | 0.234" | 7/32" | 2 | 0.098" | 11/16" | MS21060-3 | 000000000 | 0000 |
| 1/4"-28 | 51/64" | 1/2" | 3/32" | 0.313" | 3/16" | 2 | 0.098" | 9/16" | MS21076-4N | 000000000 | 00000 |
| 1/4"-28 | 1 19/64" | 33/64" | 1/32" | 0.313" | 1/4" | 2 | 0.098" | 1" | MS21060-4 | 000000000 | 00000 |
| 5/16"-24 | 1 1/64" | 37/64" | 7/64" | 0.391" | 7/32" | 2 | 0.13" | 23/32" | MS21076-5N | 000000000 | 00000 |
Adhesive-Back Self-Tapping Supports
In enclosures and other places where you don’t want to drill a hole, mount circuit boards and other thin panels with these supports. Once mounted, they give a tighter hold than snap-in supports. These supports meet UL 94 V-2 for flame retardance, so if they catch fire, they’ll stop burning within 30 seconds.
Supports with a corner mounting hole save space compared to supports with a center mounting hole.
Base | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | For Screw Size | Lg., mm | Wd., mm | Shape | Max. Temperature, °F | Color | Mounting Fasteners Included | Adhesive Type | Specifications Met | Pkg. Qty. | Pkg. | |
Nylon 6/6 Plastic | ||||||||||||
Center Mounting Hole | ||||||||||||
| 5 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 000000 | 00000 |
| 6 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 0000000 | 0000 |
| 7 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 0000000 | 0000 |
| 8 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 0000000 | 0000 |
| 9 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 0000000 | 0000 |
| 11 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 0000000 | 0000 |
| 13 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 0000000 | 0000 |
| 15 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 0000000 | 0000 |
| 16 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 0000000 | 0000 |
| 19 | M3 | 20 | 20 | Round | 175° | Off-White | No | Acrylic | UL 94 V-2 | 10 | 0000000 | 0000 |
Corner Mounting Hole | ||||||||||||
| 5 | M2.5 | 14 | 14 | Hex | 175° | Black | Yes | Acrylic | UL 94 V-2 | 4 | 0000000 | 0000 |
| 6 | M3 | 20 | 20 | Round | 175° | Black | Yes | Acrylic | UL 94 V-2 | 4 | 0000000 | 0000 |
| 10 | M2.5 | 14 | 14 | Hex | 175° | Black | Yes | Acrylic | UL 94 V-2 | 4 | 0000000 | 0000 |
| 10 | M3 | 20 | 20 | Round | 175° | Black | Yes | Acrylic | UL 94 V-2 | 4 | 0000000 | 0000 |
| 11 | M4 | 25 | 25 | Round | 175° | Black | Yes | Acrylic | UL 94 V-2 | 4 | 0000000 | 0000 |
| 15 | M3 | 20 | 20 | Round | 175° | Black | Yes | Acrylic | UL 94 V-2 | 4 | 0000000 | 0000 |
| 20 | M3 | 20 | 20 | Round | 175° | Black | Yes | Acrylic | UL 94 V-2 | 4 | 0000000 | 0000 |
| 20 | M4 | 25 | 25 | Round | 175° | Black | Yes | Acrylic | UL 94 V-2 | 4 | 0000000 | 0000 |