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Flush-Mount Press-Fit Nuts for Sheet Metal
To fit in low-clearance areas, these press-fit nuts have a flat hex head that sits flush against the surface of your material. Made of 18-8 stainless steel, they withstand contact with water and chemicals better than zinc-plated steel nuts. Use them to add permanent threads to sheet metal like weld nuts but without the setup and mess. Also known as clinch-style captive nuts, press them into a drilled or punched hole with an arbor press or similar pressure tool. The pressure forms your sheet metal into the knurls of the nut, making the nut inseparable from the sheet. Installation requires access to both sides of the panel.
For technical drawings and 3-D models, click on a part number.
Inch
Flange | Press-Fit Nuts | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size  | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | Wd. | Thick. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
| 2-56 | No. 20 | 0.04" | Brinell 125, Rockwell B70 | 3/16" | 0.01" | 0.036" | 5 | 000000000 | 00000 |
| 2-56 | No. 20 | 0.062" | Brinell 125, Rockwell B70 | 3/16" | 0.02" | 0.058" | 5 | 000000000 | 0000 |
| 2-56 | No. 20 | 0.125" | Brinell 125, Rockwell B70 | 3/16" | 0.03" | 0.117" | 5 | 000000000 | 0000 |
| 4-40 | No. 20 | 0.04" | Brinell 125, Rockwell B70 | 3/16" | 0.01" | 0.036" | 25 | 000000000 | 00000 |
| 4-40 | No. 20 | 0.062" | Brinell 125, Rockwell B70 | 3/16" | 0.02" | 0.058" | 25 | 000000000 | 00000 |
| 4-40 | No. 20 | 0.125" | Brinell 125, Rockwell B70 | 3/16" | 0.03" | 0.117" | 10 | 000000000 | 00000 |
| 6-32 | 13/64" | 0.062" | Brinell 125, Rockwell B70 | 1/4" | 0.02" | 0.058" | 25 | 000000000 | 00000 |
| 6-32 | 13/64" | 0.125" | Brinell 125, Rockwell B70 | 1/4" | 0.03" | 0.117" | 25 | 000000000 | 00000 |
| 6-32 | 13/64" | 0.187" | Brinell 125, Rockwell B70 | 1/4" | 0.03" | 0.177" | 5 | 000000000 | 0000 |
| 8-32 | 17/64" | 0.062" | Brinell 125, Rockwell B70 | 5/16" | 0.02" | 0.058" | 25 | 000000000 | 00000 |
| 8-32 | 17/64" | 0.125" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.117" | 10 | 000000000 | 00000 |
| 8-32 | 17/64" | 0.187" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.177" | 5 | 000000000 | 0000 |
| 10-32 | 17/64" | 0.093" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.085" | 25 | 000000000 | 00000 |
| 10-32 | 17/64" | 0.125" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.117" | 25 | 000000000 | 00000 |
| 10-32 | 17/64" | 0.187" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.177" | 5 | 000000000 | 00000 |
| 1/4"-20 | W | 0.125" | Brinell 125, Rockwell B70 | 7/16" | 0.03" | 0.117" | 10 | 000000000 | 0000 |
| 1/4"-20 | W | 0.187" | Brinell 125, Rockwell B70 | 7/16" | 0.03" | 0.177" | 10 | 000000000 | 00000 |
| 1/4"-20 | W | 0.375" | Brinell 125, Rockwell B70 | 7/16" | 0.03" | 0.359" | 10 | 000000000 | 00000 |
Metric
Thread | Flange | Press-Fit Nuts | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | Wd., mm | Thick., mm | Ht., mm | PEM® Part Number | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||||
| M2 | 0.4 | 4.4 mm | 1.53 | Brinell 125, Rockwell B70 | 4.8 | 0.5 | 1.53 | F-M2-1 | 10 | 000000000 | 00000 |
| M2 | 0.4 | 4.4 mm | 2.3 | Brinell 125, Rockwell B70 | 4.8 | 0.6 | 2.3 | F-M2-2 | 10 | 000000000 | 0000 |
| M2.5 | 0.45 | 4.4 mm | 1.53 | Brinell 125, Rockwell B70 | 4.8 | 0.5 | 1.53 | F-M2.5-1 | 25 | 000000000 | 00000 |
| M2.5 | 0.45 | 4.4 mm | 2.3 | Brinell 125, Rockwell B70 | 4.8 | 0.6 | 2.3 | F-M2.5-2 | 10 | 000000000 | 0000 |
| M3 | 0.5 | 4.4 mm | 1.53 | Brinell 125, Rockwell B70 | 4.8 | 0.5 | 1.53 | F-M3-1 | 25 | 000000000 | 00000 |
| M3 | 0.5 | 4.4 mm | 2.32 | Brinell 125, Rockwell B70 | 4.8 | 0.6 | 2.3 | F-M3-2 | 25 | 000000000 | 00000 |
| M4 | 0.7 | 7.4 mm | 1.53 | Brinell 125, Rockwell B70 | 7.9 | 0.5 | 1.53 | F-M4-1 | 10 | 000000000 | 0000 |
| M4 | 0.7 | 7.4 mm | 2.32 | Brinell 125, Rockwell B70 | 7.9 | 0.6 | 2.3 | F-M4-2 | 10 | 000000000 | 0000 |
| M5 | 0.8 | 7.9 mm | 1.53 | Brinell 125, Rockwell B70 | 8.7 | 0.5 | 1.53 | F-M5-1 | 10 | 000000000 | 0000 |
| M5 | 0.8 | 7.9 mm | 2.32 | Brinell 125, Rockwell B70 | 8.7 | 0.6 | 2.3 | F-M5-2 | 10 | 000000000 | 0000 |
| M6 | 1 | 8.7 mm | 3.18 | Brinell 125, Rockwell B70 | 9.5 | 0.8 | 3.05 | F-M6-3 | 10 | 000000000 | 00000 |
| M6 | 1 | 8.7 mm | 3.96 | Brinell 125, Rockwell B70 | 9.5 | 1 | 3.84 | F-M6-4 | 10 | 000000000 | 00000 |
| M6 | 1 | 8.7 mm | 4.75 | Brinell 125, Rockwell B70 | 9.5 | 1.2 | 4.63 | F-M6-5 | 5 | 000000000 | 0000 |
High-Strength Flush-Mount Press-Fit Nuts for Sheet Metal
Often used in low-clearance areas, these press-fit nuts have a flat hex head that sits flush with the surface of your material once they’re installed. Made from 400-series stainless steel, they add stronger threads to sheet metal than zinc-plated steel or 18-8 stainless steel nuts. However, they’re not as corrosion resistant as 18-8 stainless steel. Use them to add permanent threads to sheet metal like weld nuts but without the setup and mess. Also known as clinch-style captive nuts, press them into a drilled or punched hole with an arbor press or similar pressure tool. The pressure makes your sheet metal and the nut inseparable—the hex head sits flush with the sheet metal, which melds into the grooves of the nut. Installation requires access to both sides of the panel.
For technical drawings and 3-D models, click on a part number.
Inch
Installed
Flange | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | Wd. | Thick. | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
400 Series Stainless Steel | ||||||||||
| 2-56 | 11/64" | 0.06" | Brinell 180, Rockwell B85 | 3/16" | 0.02" | 0.06" | F4-256-1 | 10 | 000000000 | 00000 |
| 4-40 | 11/64" | 0.06" | Brinell 180, Rockwell B85 | 3/16" | 0.02" | 0.06" | F4-440-1 | 10 | 000000000 | 0000 |
| 4-40 | 11/64" | 0.091" | Brinell 180, Rockwell B85 | 3/16" | 0.02" | 0.09" | F4-440-2 | 10 | 000000000 | 0000 |
| 6-32 | 3 | 0.06" | Brinell 180, Rockwell B85 | 1/4" | 0.02" | 0.06" | F4-632-1 | 25 | 000000000 | 0000 |
| 6-32 | 3 | 0.091" | Brinell 180, Rockwell B85 | 1/4" | 0.02" | 0.09" | F4-632-2 | 25 | 000000000 | 0000 |
| 8-32 | L | 0.06" | Brinell 180, Rockwell B85 | 5/16" | 0.02" | 0.06" | F4-832-1 | 10 | 000000000 | 0000 |
| 8-32 | L | 0.091" | Brinell 180, Rockwell B85 | 5/16" | 0.02" | 0.09" | F4-832-2 | 10 | 000000000 | 0000 |
| 10-32 | 5/16" | 0.06" | Brinell 180, Rockwell B85 | 11/32" | 0.02" | 0.06" | F4-032-1 | 10 | 000000000 | 0000 |
| 10-32 | 5/16" | 0.091" | Brinell 180, Rockwell B85 | 11/32" | 0.02" | 0.09" | F4-032-2 | 10 | 000000000 | 0000 |
Metric
Installed
Thread | Flange | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | Wd., mm | Thick., mm | Ht., mm | PEM® Part No. | Pkg. Qty. | Pkg. | |
400 Series Stainless Steel | |||||||||||
| M2 | 0.4 | 4.4 mm | 1.53 | Brinell 180, Rockwell B85 | 4.8 | 0.5 | 1.53 | F4-M2-1 | 10 | 000000000 | 00000 |
| M2.5 | 0.45 | 4.4 mm | 1.53 | Brinell 180, Rockwell B85 | 4.8 | 0.5 | 1.53 | F4-M2.5-1 | 10 | 000000000 | 0000 |
| M2.5 | 0.45 | 4.4 mm | 2.32 | Brinell 180, Rockwell B85 | 4.8 | 0.6 | 2.3 | F4-M2.5-2 | 10 | 000000000 | 0000 |
| M3 | 0.5 | 4.4 mm | 1.53 | Brinell 180, Rockwell B85 | 4.8 | 0.5 | 1.53 | F-M3-1 | 10 | 000000000 | 0000 |
| M3 | 0.5 | 4.4 mm | 2.32 | Brinell 180, Rockwell B85 | 4.8 | 0.6 | 2.3 | F4-M3-2 | 10 | 000000000 | 0000 |
| M4 | 0.7 | 7.4 mm | 1.53 | Brinell 180, Rockwell B85 | 7.9 | 0.5 | 1.53 | F4-M4-1 | 10 | 000000000 | 0000 |
| M4 | 0.7 | 7.4 mm | 2.32 | Brinell 180, Rockwell B85 | 7.9 | 0.6 | 2.3 | F4-M4-2 | 10 | 000000000 | 0000 |
| M5 | 0.8 | 7.9 mm | 1.53 | Brinell 180, Rockwell B85 | 8.7 | 0.5 | 1.53 | F4-M5-1 | 10 | 000000000 | 0000 |
| M5 | 0.8 | 7.9 mm | 2.32 | Brinell 180, Rockwell B85 | 8.7 | 0.6 | 2.3 | F4-M5-2 | 10 | 000000000 | 0000 |
Press-Fit Threaded Standoffs with Open End
Front
Back
A recess under the hex clinches a panel for a strong hold that won't push, pull, or twist out. When mounted with a lever press, the hex sits flush with the surface and the open end creates a through hole. These are also known as captive standoffs.
18-8 stainless steel standoffs have good corrosion resistance and are nonmagnetic.
Zinc-plated steel standoffs have some corrosion resistance.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel—Inch
Fully Threaded
Partially Threaded
| Lg. | For Hole Dia. | For Min. Panel Thick. | Thread Size | Threading | Thread Lg. | Min. Thread Lg. | PEM® Part Number | Specifications Met | Pkg. Qty. | Pkg. | |
0.165" OD | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 0.166" | 0.04" | 4-40 | Fully Threaded | 1/8" | __ | SOS-440-4 | ASTM A380 | 10 | 000000000 | 00000 |
| 3/16" | 0.166" | 0.04" | 4-40 | Fully Threaded | 3/16" | __ | SOS-440-6 | ASTM A380 | 10 | 000000000 | 0000 |
| 1/4" | 0.166" | 0.04" | 4-40 | Fully Threaded | 1/4" | __ | SOS-440-8 | ASTM A380 | 25 | 000000000 | 00000 |
| 5/16" | 0.166" | 0.04" | 4-40 | Fully Threaded | 5/16" | __ | SOS-440-10 | ASTM A380 | 10 | 000000000 | 0000 |
| 3/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | __ | 3/16" | SOS-440-12 | ASTM A380 | 25 | 000000000 | 00000 |
| 7/16" | 0.166" | 0.04" | 4-40 | Partially Threaded | __ | 1/4" | SOS-440-14 | ASTM A380 | 10 | 000000000 | 0000 |
| 1/2" | 0.166" | 0.04" | 4-40 | Partially Threaded | __ | 5/16" | SOS-440-16 | ASTM A380 | 10 | 000000000 | 0000 |
| 5/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | __ | 5/16" | SOS-440-20 | ASTM A380 | 10 | 000000000 | 00000 |
| 3/4" | 0.166" | 0.04" | 4-40 | Partially Threaded | __ | 7/16" | SOS-440-24 | ASTM A380 | 10 | 000000000 | 00000 |
0.212" OD | |||||||||||
| 1/8" | 0.213" | 0.04" | 6-32 | Fully Threaded | 1/8" | __ | SOS-632-4 | ASTM A380 | 10 | 000000000 | 0000 |
| 3/16" | 0.213" | 0.04" | 6-32 | Fully Threaded | 3/16" | __ | SOS-632-6 | ASTM A380 | 10 | 000000000 | 0000 |
| 1/4" | 0.213" | 0.04" | 6-32 | Fully Threaded | 1/4" | __ | SOS-632-8 | ASTM A380 | 25 | 000000000 | 00000 |
| 5/16" | 0.213" | 0.04" | 6-32 | Fully Threaded | 5/16" | __ | SOS-632-10 | ASTM A380 | 10 | 000000000 | 0000 |
| 3/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | __ | 3/16" | SOS-632-12 | ASTM A380 | 25 | 000000000 | 00000 |
| 1/2" | 0.213" | 0.04" | 6-32 | Partially Threaded | __ | 5/16" | SOS-632-16 | ASTM A380 | 25 | 000000000 | 00000 |
| 5/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | __ | 5/16" | SOS-632-20 | ASTM A380 | 10 | 000000000 | 00000 |
| 3/4" | 0.213" | 0.04" | 6-32 | Partially Threaded | __ | 7/16" | SOS-632-24 | ASTM A380 | 10 | 000000000 | 00000 |
0.28" OD | |||||||||||
| 3/16" | 0.281" | 0.05" | 8-32 | Fully Threaded | 3/16" | __ | SOS-832-6 | ASTM A380 | 5 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.05" | 8-32 | Fully Threaded | 1/4" | __ | SOS-832-8 | ASTM A380 | 10 | 000000000 | 0000 |
| 5/16" | 0.281" | 0.05" | 8-32 | Fully Threaded | 5/16" | __ | SOS-832-10 | ASTM A380 | 5 | 000000000 | 0000 |
| 3/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | __ | 3/16" | SOS-832-12 | ASTM A380 | 10 | 000000000 | 0000 |
| 7/16" | 0.281" | 0.05" | 8-32 | Partially Threaded | __ | 1/4" | SOS-832-14 | ASTM A380 | 5 | 000000000 | 0000 |
| 1/2" | 0.281" | 0.05" | 8-32 | Partially Threaded | __ | 5/16" | SOS-832-16 | ASTM A380 | 10 | 000000000 | 00000 |
| 5/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | __ | 5/16" | SOS-832-20 | ASTM A380 | 10 | 000000000 | 00000 |
| 3/4" | 0.281" | 0.05" | 8-32 | Partially Threaded | __ | 7/16" | SOS-832-24 | ASTM A380 | 10 | 000000000 | 00000 |
0.281" OD | |||||||||||
| 5/16" | 0.281" | 0.05" | 10-32 | Fully Threaded | 5/16" | __ | SOS-032-10 | ASTM A380 | 5 | 000000000 | 0000 |
| 1/2" | 0.281" | 0.05" | 10-32 | Partially Threaded | __ | 0.313" | SOS-032-16 | ASTM A380 | 5 | 000000000 | 0000 |
| 3/4" | 0.281" | 0.05" | 10-32 | Partially Threaded | __ | 0.438" | SOS-032-24 | ASTM A380 | 5 | 000000000 | 00000 |
18-8 Stainless Steel—Metric
Fully Threaded
Partially Threaded
| Lg., mm | For Hole Dia., mm | For Min. Panel Thick., mm | Thread Size | Thread Pitch, mm | Threading | Thread Lg., mm | Min. Thread Lg., mm | PEM® Part Number | Specifications Met | Pkg. Qty. | Pkg. | |
4.2 mm OD | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 | 4.2 | 1 | M3 | 0.5 | Fully Threaded | 6 | __ | SOS-M3-6 | ASTM A380 | 10 | 000000000 | 00000 |
| 8 | 4.2 | 1 | M3 | 0.5 | Fully Threaded | 8 | __ | SOS-M3-8 | ASTM A380 | 10 | 000000000 | 0000 |
| 10 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | __ | 6 | SOS-M3-10 | ASTM A380 | 10 | 000000000 | 0000 |
| 12 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | __ | 8 | SOS-M3-12 | ASTM A380 | 10 | 000000000 | 0000 |
| 14 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | __ | 10 | SOS-M3-14 | ASTM A380 | 10 | 000000000 | 00000 |
5.4 mm OD | ||||||||||||
| 6 | 5.4 | 1 | M3 | 0.5 | Fully Threaded | 6 | __ | SOS-3.5M3-6 | ASTM A380 | 10 | 000000000 | 0000 |
| 8 | 5.4 | 1 | M3 | 0.5 | Fully Threaded | 8 | __ | SOS-3.5M3-8 | ASTM A380 | 10 | 000000000 | 0000 |
| 10 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | __ | 6 | SOS-3.5M3-10 | ASTM A380 | 10 | 000000000 | 0000 |
| 12 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | __ | 8 | SOS-3.5M3-12 | ASTM A380 | 10 | 000000000 | 00000 |
| 14 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | __ | 10 | SOS-3.5M3-14 | ASTM A380 | 10 | 000000000 | 00000 |
7.1 mm OD | ||||||||||||
| 6 | 7.1 | 1.3 | M4 | 0.7 | Fully Threaded | 6 | __ | SOS-M4-6 | ASTM A380 | 10 | 000000000 | 0000 |
| 8 | 7.1 | 1.3 | M4 | 0.7 | Fully Threaded | 8 | __ | SOS-M4-8 | ASTM A380 | 10 | 000000000 | 0000 |
| 8 | 7.1 | 1.3 | M5 | 0.8 | Fully Threaded | 8 | __ | SOS-M5-8 | ASTM A380 | 5 | 000000000 | 0000 |
| 10 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | __ | 6 | SOS-M4-10 | ASTM A380 | 10 | 000000000 | 00000 |
| 12 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | __ | 8 | SOS-M4-12 | ASTM A380 | 10 | 000000000 | 00000 |
| 14 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | __ | 10 | SOS-M4-14 | ASTM A380 | 10 | 000000000 | 00000 |
Zinc-Plated Steel—Inch
Fully Threaded
Partially Threaded
| Lg. | For Hole Dia. | For Min. Panel Thick. | Thread Size | Threading | Thread Lg. | Min. Thread Lg. | PEM® Part Number | Pkg. Qty. | Pkg. | |
0.165" OD | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/4" | 0.166" | 0.04" | 4-40 | Fully Threaded | 1/4" | __ | SO-440-8ZI | 10 | 000000000 | 00000 |
| 5/16" | 0.166" | 0.04" | 4-40 | Fully Threaded | 5/16" | __ | SO-440-10ZI | 25 | 000000000 | 0000 |
| 3/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | __ | 3/16" | SO-440-12ZI | 10 | 000000000 | 0000 |
| 1/2" | 0.166" | 0.04" | 4-40 | Partially Threaded | __ | 5/16" | SO-440-16ZI | 10 | 000000000 | 0000 |
| 5/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | __ | 5/16" | SO-440-20ZI | 10 | 000000000 | 0000 |
| 3/4" | 0.166" | 0.04" | 4-40 | Partially Threaded | __ | 7/16" | SO-440-24ZI | 10 | 000000000 | 0000 |
0.212" OD | ||||||||||
| 1/4" | 0.213" | 0.04" | 6-32 | Fully Threaded | 1/4" | __ | SO-632-8ZI | 10 | 000000000 | 0000 |
| 5/16" | 0.213" | 0.04" | 6-32 | Fully Threaded | 5/16" | __ | SO-632-10ZI | 25 | 000000000 | 0000 |
| 3/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | __ | 3/16" | SO-632-12ZI | 10 | 000000000 | 0000 |
| 1/2" | 0.213" | 0.04" | 6-32 | Partially Threaded | __ | 5/16" | SO-632-16ZI | 10 | 000000000 | 0000 |
| 5/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | __ | 5/16" | SO-632-20ZI | 10 | 000000000 | 0000 |
| 3/4" | 0.213" | 0.04" | 6-32 | Partially Threaded | __ | 7/16" | SO-632-24ZI | 10 | 000000000 | 0000 |
0.28" OD | ||||||||||
| 1/4" | 0.281" | 0.05" | 8-32 | Fully Threaded | 1/4" | __ | SO-832-8ZI | 10 | 000000000 | 0000 |
| 5/16" | 0.281" | 0.05" | 8-32 | Fully Threaded | 5/16" | __ | SO-832-10ZI | 10 | 000000000 | 0000 |
| 3/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | __ | 3/16" | SO-832-12ZI | 10 | 000000000 | 0000 |
| 1/2" | 0.281" | 0.05" | 8-32 | Partially Threaded | __ | 5/16" | SO-832-16ZI | 10 | 000000000 | 0000 |
| 5/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | __ | 5/16" | SO-832-20ZI | 10 | 000000000 | 0000 |
| 3/4" | 0.281" | 0.05" | 8-32 | Partially Threaded | __ | 7/16" | SO-832-24ZI | 10 | 000000000 | 0000 |
0.281" OD | ||||||||||
| 5/16" | 0.281" | 0.05" | 10-32 | Fully Threaded | 5/16" | __ | SO-032-10ZI | 10 | 000000000 | 0000 |
| 3/8" | 0.281" | 0.05" | 10-32 | Partially Threaded | __ | 0.188" | SO-032-12ZI | 10 | 000000000 | 0000 |
| 1/2" | 0.281" | 0.05" | 10-32 | Partially Threaded | __ | 0.313" | SO-032-16ZI | 10 | 000000000 | 0000 |
Zinc-Plated Steel—Metric
Fully Threaded
Partially Threaded
| Lg., mm | For Hole Dia., mm | For Min. Panel Thick., mm | Thread Size | Thread Pitch, mm | Threading | Thread Lg., mm | Min. Thread Lg., mm | PEM® Part Number | Pkg. Qty. | Pkg. | |
4.2 mm OD | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 | 4.2 | 1 | M3 | 0.5 | Fully Threaded | 6 | __ | SO-M3-6ZI | 10 | 000000000 | 00000 |
| 8 | 4.2 | 1 | M3 | 0.5 | Fully Threaded | 8 | __ | SO-M3-8ZI | 10 | 000000000 | 0000 |
| 10 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | __ | 6 | SO-M3-10ZI | 10 | 000000000 | 0000 |
| 12 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | __ | 8 | SO-M3-12ZI | 10 | 000000000 | 0000 |
| 14 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | __ | 10 | SO-M3-14ZI | 10 | 000000000 | 0000 |
5.4 mm OD | |||||||||||
| 6 | 5.4 | 1 | M3 | 0.5 | Fully Threaded | 6 | __ | SO-3.5M3-6ZI | 10 | 000000000 | 0000 |
| 8 | 5.4 | 1 | M3 | 0.5 | Fully Threaded | 8 | __ | SO-3.5M3-8ZI | 10 | 000000000 | 0000 |
| 10 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | __ | 6 | SO-3.5M3-10ZI | 10 | 000000000 | 0000 |
| 12 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | __ | 8 | SO-3.5M3-12ZI | 10 | 000000000 | 0000 |
| 14 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | __ | 10 | SO-3.5M3-14ZI | 10 | 000000000 | 0000 |
7.1 mm OD | |||||||||||
| 6 | 7.1 | 1.3 | M4 | 0.7 | Fully Threaded | 6 | __ | SO-M4-6ZI | 10 | 000000000 | 0000 |
| 6 | 7.1 | 1.3 | M5 | 0.8 | Fully Threaded | 6 | __ | SO-M5-6ZI | 10 | 000000000 | 0000 |
| 8 | 7.1 | 1.3 | M4 | 0.7 | Fully Threaded | 8 | __ | SO-M4-8ZI | 10 | 000000000 | 0000 |
| 8 | 7.1 | 1.3 | M5 | 0.8 | Fully Threaded | 8 | __ | SO-M5-8ZI | 10 | 000000000 | 0000 |
| 10 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | __ | 6 | SO-M4-10ZI | 10 | 000000000 | 0000 |
| 10 | 7.1 | 1.3 | M5 | 0.8 | Partially Threaded | __ | 6 | SO-M5-10ZI | 10 | 000000000 | 0000 |
| 12 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | __ | 8 | SO-M4-12ZI | 10 | 000000000 | 0000 |
| 14 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | __ | 10 | SO-M4-14ZI | 10 | 000000000 | 0000 |
| 14 | 7.1 | 1.3 | M5 | 0.8 | Partially Threaded | __ | 10 | SO-M5-14ZI | 5 | 000000000 | 0000 |
| 20 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | __ | 12 | SO-M4-20ZI | 5 | 000000000 | 0000 |
Press-Fit Threaded Standoffs with Closed End
Front
Back
Also known as captive standoffs, a recess under the hex clinches the panel for a strong hold that won't push, pull, or twist out. When mounted, the hex sits flush with the surface and the closed end creates a neat, finished appearance. Use a lever press to install.
18-8 stainless steel standoffs have good corrosion resistance and may be mildly magnetic.
Zinc-plated steel standoffs have some corrosion resistance.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel—Inch
Partially Threaded
| Lg. | For Hole Dia. | For Min. Panel Thick. | Thread Size | Threading | Min. Thread Lg. | PEM® Part Number | Specifications Met | Pkg. Qty. | Pkg. | |
0.165" OD | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 5/16" | 0.166" | 0.04" | 4-40 | Partially Threaded | 5/32" | BSOS-440-10 | ASTM A380 | 25 | 000000000 | 000000 |
| 3/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | 5/32" | BSOS-440-12 | ASTM A380 | 25 | 000000000 | 00000 |
| 7/16" | 0.166" | 0.04" | 4-40 | Partially Threaded | 3/16" | BSOS-440-14 | ASTM A380 | 10 | 000000000 | 0000 |
| 1/2" | 0.166" | 0.04" | 4-40 | Partially Threaded | 1/4" | BSOS-440-16 | ASTM A380 | 10 | 000000000 | 0000 |
| 5/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | 1/4" | BSOS-440-20 | ASTM A380 | 10 | 000000000 | 00000 |
| 3/4" | 0.166" | 0.04" | 4-40 | Partially Threaded | 3/8" | BSOS-440-24 | ASTM A380 | 10 | 000000000 | 00000 |
| 7/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | 3/8" | BSOS-440-28 | ASTM A380 | 10 | 000000000 | 00000 |
| 1" | 0.166" | 0.04" | 4-40 | Partially Threaded | 3/8" | BSOS-440-32 | ASTM A380 | 10 | 000000000 | 00000 |
0.212" OD | ||||||||||
| 5/16" | 0.213" | 0.04" | 6-32 | Partially Threaded | 5/32" | BSOS-632-10 | ASTM A380 | 25 | 000000000 | 00000 |
| 3/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | 5/32" | BSOS-632-12 | ASTM A380 | 25 | 000000000 | 00000 |
| 7/16" | 0.213" | 0.04" | 6-32 | Partially Threaded | 3/16" | BSOS-632-14 | ASTM A380 | 10 | 000000000 | 0000 |
| 1/2" | 0.213" | 0.04" | 6-32 | Partially Threaded | 1/4" | BSOS-632-16 | ASTM A380 | 25 | 000000000 | 00000 |
| 5/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | 1/4" | BSOS-632-20 | ASTM A380 | 10 | 000000000 | 00000 |
| 3/4" | 0.213" | 0.04" | 6-32 | Partially Threaded | 3/8" | BSOS-632-24 | ASTM A380 | 10 | 000000000 | 00000 |
| 7/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | 3/8" | BSOS-632-28 | ASTM A380 | 10 | 000000000 | 00000 |
| 1" | 0.213" | 0.04" | 6-32 | Partially Threaded | 3/8" | BSOS-632-32 | ASTM A380 | 10 | 000000000 | 00000 |
0.28" OD | ||||||||||
| 5/16" | 0.281" | 0.05" | 8-32 | Partially Threaded | 5/32" | BSOS-832-10 | ASTM A380 | 10 | 000000000 | 0000 |
| 5/16" | 0.281" | 0.05" | 10-32 | Partially Threaded | 5/32" | BSOS-032-10 | ASTM A380 | 5 | 000000000 | 0000 |
| 3/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | 5/32" | BSOS-832-12 | ASTM A380 | 10 | 000000000 | 0000 |
| 7/16" | 0.281" | 0.05" | 8-32 | Partially Threaded | 3/16" | BSOS-832-14 | ASTM A380 | 10 | 000000000 | 00000 |
| 7/16" | 0.281" | 0.05" | 10-32 | Partially Threaded | 3/16" | BSOS-032-14 | ASTM A380 | 5 | 000000000 | 0000 |
| 1/2" | 0.281" | 0.05" | 8-32 | Partially Threaded | 1/4" | BSOS-832-16 | ASTM A380 | 10 | 000000000 | 00000 |
| 1/2" | 0.281" | 0.05" | 10-32 | Partially Threaded | 1/4" | BSOS-032-16 | ASTM A380 | 5 | 000000000 | 0000 |
| 5/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | 1/4" | BSOS-832-20 | ASTM A380 | 10 | 000000000 | 00000 |
| 5/8" | 0.281" | 0.05" | 10-32 | Partially Threaded | 1/4" | BSOS-032-20 | ASTM A380 | 5 | 000000000 | 0000 |
| 3/4" | 0.281" | 0.05" | 8-32 | Partially Threaded | 3/8" | BSOS-832-24 | ASTM A380 | 10 | 000000000 | 00000 |
| 3/4" | 0.281" | 0.05" | 10-32 | Partially Threaded | 3/8" | BSOS-032-24 | ASTM A380 | 1 | 000000000 | 0000 |
| 7/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | 3/8" | BSOS-832-28 | ASTM A380 | 10 | 000000000 | 00000 |
| 1" | 0.281" | 0.05" | 8-32 | Partially Threaded | 3/8" | BSOS-832-32 | ASTM A380 | 10 | 000000000 | 00000 |
| 1" | 0.281" | 0.05" | 10-32 | Partially Threaded | 3/8" | BSOS-032-32 | ASTM A380 | 1 | 000000000 | 0000 |
18-8 Stainless Steel—Metric
Partially Threaded
| Lg., mm | For Hole Dia., mm | For Min. Panel Thick., mm | Thread Size | Thread Pitch, mm | Threading | Min. Thread Lg., mm | PEM® Part Number | Specifications Met | Pkg. Qty. | Pkg. | |
4.2 mm OD | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 3 | BSOS-M3-6 | ASTM A380 | 10 | 000000000 | 00000 |
| 8 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 4 | BSOS-M3-8 | ASTM A380 | 10 | 000000000 | 0000 |
| 10 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 4 | BSOS-M3-10 | ASTM A380 | 10 | 000000000 | 0000 |
| 12 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 5 | BSOS-M3-12 | ASTM A380 | 10 | 000000000 | 0000 |
| 14 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 7 | BSOS-M3-14 | ASTM A380 | 10 | 000000000 | 0000 |
| 16 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 6 | BSOS-M3-16 | ASTM A380 | 5 | 000000000 | 0000 |
| 20 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 9 | BSOS-M3-20 | ASTM A380 | 5 | 000000000 | 0000 |
| 25 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 9 | BSOS-M3-25 | ASTM A380 | 5 | 000000000 | 0000 |
5.4 mm OD | |||||||||||
| 6 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 3 | BSOS-3.5M3-6 | ASTM A380 | 10 | 000000000 | 0000 |
| 8 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 4 | BSOS-3.5M3-8 | ASTM A380 | 10 | 000000000 | 0000 |
| 10 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 4 | BSOS-3.5M3-10 | ASTM A380 | 10 | 000000000 | 0000 |
| 12 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 5 | BSOS-3.5M3-12 | ASTM A380 | 10 | 000000000 | 0000 |
| 14 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 7 | BSOS-3.5M3-14 | ASTM A380 | 10 | 000000000 | 00000 |
7.1 mm OD | |||||||||||
| 6 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 3 | BSOS-M4-6 | ASTM A380 | 10 | 000000000 | 0000 |
| 8 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 4 | BSOS-M4-8 | ASTM A380 | 10 | 000000000 | 0000 |
| 10 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 4 | BSOS-M4-10 | ASTM A380 | 10 | 000000000 | 0000 |
| 12 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 5 | BSOS-M4-12 | ASTM A380 | 10 | 000000000 | 00000 |
| 14 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 7 | BSOS-M4-14 | ASTM A380 | 10 | 000000000 | 00000 |
| 16 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 6 | BSOS-M4-16 | ASTM A380 | 5 | 000000000 | 00000 |
Zinc-Plated Steel—Inch
Partially Threaded
| Lg. | For Hole Dia. | For Min. Panel Thick. | Thread Size | Threading | Min. Thread Lg. | PEM® Part Number | Pkg. Qty. | Pkg. | |
0.165" OD | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 5/16" | 0.166" | 0.04" | 4-40 | Partially Threaded | 5/32" | BSO-440-10ZI | 10 | 000000000 | 00000 |
| 3/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | 5/32" | BSO-440-12ZI | 10 | 000000000 | 0000 |
| 7/16" | 0.166" | 0.04" | 4-40 | Partially Threaded | 3/16" | BSO-440-14ZI | 10 | 000000000 | 0000 |
| 1/2" | 0.166" | 0.04" | 4-40 | Partially Threaded | 1/4" | BSO-440-16ZI | 10 | 000000000 | 0000 |
| 5/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | 1/4" | BSO-440-20ZI | 10 | 000000000 | 0000 |
| 3/4" | 0.166" | 0.04" | 4-40 | Partially Threaded | 3/8" | BSO-440-24ZI | 10 | 000000000 | 00000 |
| 7/8" | 0.166" | 0.04" | 4-40 | Partially Threaded | 3/8" | BSO-440-28ZI | 5 | 000000000 | 0000 |
| 1" | 0.166" | 0.04" | 4-40 | Partially Threaded | 3/8" | BSO-440-32ZI | 10 | 000000000 | 00000 |
0.212" OD | |||||||||
| 5/16" | 0.213" | 0.04" | 6-32 | Partially Threaded | 5/32" | BSO-632-10ZI | 10 | 000000000 | 0000 |
| 3/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | 5/32" | BSO-632-12ZI | 10 | 000000000 | 0000 |
| 7/16" | 0.213" | 0.04" | 6-32 | Partially Threaded | 3/16" | BSO-632-14ZI | 10 | 000000000 | 0000 |
| 1/2" | 0.213" | 0.04" | 6-32 | Partially Threaded | 1/4" | BSO-632-16ZI | 10 | 000000000 | 0000 |
| 5/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | 1/4" | BSO-632-20ZI | 10 | 000000000 | 0000 |
| 3/4" | 0.213" | 0.04" | 6-32 | Partially Threaded | 3/8" | BSO-632-24ZI | 10 | 000000000 | 0000 |
| 7/8" | 0.213" | 0.04" | 6-32 | Partially Threaded | 3/8" | BSO-632-28ZI | 5 | 000000000 | 0000 |
| 1" | 0.213" | 0.04" | 6-32 | Partially Threaded | 3/8" | BSO-632-32ZI | 10 | 000000000 | 00000 |
0.28" OD | |||||||||
| 5/16" | 0.281" | 0.05" | 8-32 | Partially Threaded | 5/32" | BSO-832-10ZI | 10 | 000000000 | 0000 |
| 5/16" | 0.281" | 0.05" | 10-32 | Partially Threaded | 5/32" | BSO-032-10ZI | 5 | 000000000 | 0000 |
| 3/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | 5/32" | BSO-832-12ZI | 10 | 000000000 | 0000 |
| 3/8" | 0.281" | 0.05" | 10-32 | Partially Threaded | 5/32" | BSO-032-12ZI | 5 | 000000000 | 0000 |
| 7/16" | 0.281" | 0.05" | 8-32 | Partially Threaded | 0.187" | BSO-832-14ZI | 10 | 000000000 | 0000 |
| 7/16" | 0.281" | 0.05" | 10-32 | Partially Threaded | 3/16" | BSO-032-14ZI | 5 | 000000000 | 0000 |
| 1/2" | 0.281" | 0.05" | 8-32 | Partially Threaded | 1/4" | BSO-832-16ZI | 10 | 000000000 | 0000 |
| 1/2" | 0.281" | 0.05" | 10-32 | Partially Threaded | 1/4" | BSO-032-16ZI | 5 | 000000000 | 0000 |
| 5/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | 1/4" | BSO-832-20ZI | 10 | 000000000 | 0000 |
| 5/8" | 0.281" | 0.05" | 10-32 | Partially Threaded | 1/4" | BSO-032-20ZI | 5 | 000000000 | 0000 |
| 3/4" | 0.281" | 0.05" | 8-32 | Partially Threaded | 3/8" | BSO-832-24ZI | 10 | 000000000 | 00000 |
| 3/4" | 0.281" | 0.05" | 10-32 | Partially Threaded | 3/8" | BSO-032-24ZI | 5 | 000000000 | 0000 |
| 7/8" | 0.281" | 0.05" | 8-32 | Partially Threaded | 3/8" | BSO-832-28ZI | 5 | 000000000 | 0000 |
| 7/8" | 0.281" | 0.05" | 10-32 | Partially Threaded | 3/8" | BSO-032-28ZI | 5 | 000000000 | 0000 |
| 1" | 0.281" | 0.05" | 8-32 | Partially Threaded | 3/8" | BSO-832-32ZI | 10 | 000000000 | 00000 |
| 1" | 0.281" | 0.05" | 10-32 | Partially Threaded | 3/8" | BSO-032-32ZI | 5 | 000000000 | 00000 |
Zinc-Plated Steel—Metric
Partially Threaded
| Lg., mm | For Hole Dia., mm | For Min. Panel Thick., mm | Thread Size | Thread Pitch, mm | Threading | Min. Thread Lg., mm | PEM® Part Number | Pkg. Qty. | Pkg. | |
4.2 mm OD | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 6 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 3 | BSO-M3-6ZI | 10 | 000000000 | 00000 |
| 8 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 4 | BSO-M3-8ZI | 10 | 000000000 | 0000 |
| 10 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 4 | BSO-M3-10ZI | 10 | 000000000 | 0000 |
| 12 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 5 | BSO-M3-12ZI | 10 | 000000000 | 0000 |
| 14 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 7 | BSO-M3-14ZI | 10 | 000000000 | 0000 |
| 16 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 6 | BSO-M3-16ZI | 5 | 000000000 | 0000 |
| 25 | 4.2 | 1 | M3 | 0.5 | Partially Threaded | 9 | BSO-M3-25ZI | 5 | 000000000 | 0000 |
5.4 mm OD | ||||||||||
| 6 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 3 | BSO-3.5M3-6ZI | 10 | 000000000 | 0000 |
| 8 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 4 | BSO-3.5M3-8ZI | 10 | 000000000 | 0000 |
| 10 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 4 | BSO-3.5M3-10ZI | 10 | 000000000 | 0000 |
| 12 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 5 | BSO-3.5M3-12ZI | 10 | 000000000 | 0000 |
| 14 | 5.4 | 1 | M3 | 0.5 | Partially Threaded | 7 | BSO-3.5M3-14ZI | 10 | 000000000 | 0000 |
7.1 mm OD | ||||||||||
| 6 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 3 | BSO-M4-6ZI | 10 | 000000000 | 0000 |
| 8 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 4 | BSO-M4-8ZI | 10 | 000000000 | 0000 |
| 10 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 4 | BSO-M4-10ZI | 10 | 000000000 | 0000 |
| 10 | 7.1 | 1.3 | M5 | 0.8 | Partially Threaded | 4 | BSO-M5-10ZI | 5 | 000000000 | 0000 |
| 12 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 5 | BSO-M4-12ZI | 10 | 000000000 | 0000 |
| 12 | 7.1 | 1.3 | M5 | 0.8 | Partially Threaded | 5 | BSO-M5-12ZI | 5 | 000000000 | 0000 |
| 14 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 7 | BSO-M4-14ZI | 10 | 000000000 | 0000 |
| 14 | 7.1 | 1.3 | M5 | 0.8 | Partially Threaded | 6 | BSO-M5-14ZI | 5 | 000000000 | 0000 |
| 16 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 6 | BSO-M4-16ZI | 5 | 000000000 | 0000 |
| 16 | 7.1 | 1.3 | M5 | 0.8 | Partially Threaded | 6 | BSO-M5-16ZI | 5 | 000000000 | 0000 |
| 20 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 9 | BSO-M4-20ZI | 5 | 000000000 | 0000 |
| 20 | 7.1 | 1.3 | M5 | 0.8 | Partially Threaded | 9 | BSO-M5-20ZI | 5 | 000000000 | 0000 |
| 25 | 7.1 | 1.3 | M4 | 0.7 | Partially Threaded | 9 | BSO-M4-25ZI | 5 | 000000000 | 0000 |