Description
Smooth Body Rivet Nuts
Smooth Body Rivet Nuts Size Chart & Specifications
Our smooth body rivet nuts are available in both small flange and large flange styles, with inch and metric thread sizes for a wide range of sheet metal and panel applications.
Use the size charts below to compare hole size, body diameter, head diameter, length, and grip range.
Small Flange Smooth Body Rivet Nuts
Small flange smooth body rivet nuts are ideal when a lower-profile head is preferred while still providing secure internal threads in thin materials.
THREAD SIZE(UNC) |
PART NO. |
HOLE SIZE+0.004 / -0.0 |
Body Dia. /D+0.0 / -0.004 |
Length / L±0.015 |
Head Dia. / A±0.012 |
Head Height / H+0.006 / -0.002 |
GRIP RANGE |
| UNC 4-40 | SAI3 | 0.192 | 0.188 | 0.355 | 0.228 | 0.02 | 0.02-0.08 |
| UNC 6-32 | SAI4-632 / SAI4-632K | 0.253 | 0.249 | 0.409 | 0.289 | 0.02 | 0.02-0.10 |
| UNC 8-32 | SAI4-832 / SAI4-832K | 0.253 | 0.249 | 0.409 | 0.289 | 0.02 | 0.02-0.10 |
| UNC 10-24 | SAI5-1024 / SAI5-1024K | 0.284 | 0.28 | 0.464 | 0.32 | 0.02 | 0.02-0.10 |
| UNF 10-32 | SAI5-1032 / SAI5-1032K | 0.284 | 0.28 | 0.464 | 0.32 | 0.02 | 0.02-0.10 |
| UNC 1/4-20 | SAI6 / SAI6-K | 0.378 | 0.374 | 0.575 | 0.414 | 0.02 | 0.04-0.15 |
| UNC 5/16-18 | SAI8 / SAI8-K | 0.42 | 0.414 | 0.63 | 0.456 | 0.02 | 0.04-0.15 |
| UNC 3/8-16 | SAI10 / SAI10-K | 0.504 | 0.5 | 0.708 | 0.54 | 0.02 | 0.04-0.16 |
THREAD SIZE(Metric) |
PART NO. |
HOLE SIZE+0.1/-0.0 |
Body Dia. /D +0.1/-0.0 |
Length / L±0.4 |
Head Di.a / A±0.3 |
Head Height / H+0.15 / -0.05 |
GRIP RANGE |
| M3x0.5 | SEM3 | 5.1 | 5 | 9 | 6 | 0.5 | 0.5-2.0 |
| M4x0.7 | SEM4 / SEM4-K | 6.1 | 6 | 10 | 7 | 0.5 | 0.5-2.5 |
| M5x0.8 | SEM5 / SEM5-K | 7.1 | 7 | 12 | 8 | 0.5 | 0.5-2.5 |
| M6x1.0 | SEM6 / SEM6-K | 9.1 | 9 | 15 | 10 | 0.5 | 1.0-4.0 |
| M8x1.25 | SEM8 / SEM8-K | 11.1 | 11 | 16 | 12 | 0.5 | 1.0-4.0 |
| M10x1.5 | SEM10 / SEM10-K | 13.1 | 13 | 18.6 | 14 | 0.5 | 1.0-4.0 |
| M3x0.5 | SAM3 | 4.9 | 4.8 | 9 | 5.8 | 0.5 | 0.5-2.0 |
| M4x0.7 | SAM4 / SAM4-K | 6.4 | 6.3 | 10 | 7.3 | 0.5 | 0.5-2.5 |
| M5x0.8 | SAM5 / SAM5-K | 7.2 | 7.1 | 12 | 8.1 | 0.5 | 0.5-2.5 |
| M6x1.0 | SAM6 / SAM6-K | 9.6 | 9.5 | 15 | 10.5 | 0.5 | 1.0-4.0 |
| M8x1.25 | SAM8 / SAM8-K | 10.6 | 10.5 | 16 | 11.5 | 0.5 | 1.0-4.0 |
| M10x1.5 | SAM10 / SAM10-K | 12.8 | 12.7 | 18.6 | 13.7 | 0.5 | 1.0-4.0 |
Large Flange Smooth Body Rivet Nuts
Large flange smooth body rivet nuts provide a wider bearing surface for better load distribution, especially in softer materials or oversized holes.
THREAD SIZE(UNC) |
PART NO. |
HOLE SIZE+0.004 / -0.0 |
Body Dia /D+0.0 / -0.004 |
Length / L±0.015 |
Head Dia / A±0.012 |
Head Height / H+0.006 / -0.002 |
GRIP RANGE |
| UNC 4-40 | BAI3 | 0.20 | 0.20 | 0.39 | 0.32 | 0.03 | 0.02-0.08 |
| UNC 8-32 | BAI4 / BAI4-K | 0.24 | 0.24 | 0.41 | 0.35 | 0.03 | 0.02-0.10 |
| UNC 10-24 | BAI5 / BAI5-K | 0.28 | 0.28 | 0.45 | 0.39 | 0.04 | 0.02-0.10 |
| UNC 1/4-20 | BAI6 / BAI6-K | 0.36 | 0.35 | 0.57 | 0.51 | 0.06 | 0.04-0.15 |
| UNC 5/16-18 | BAI8 / BAI8-K | 0.44 | 0.43 | 0.65 | 0.57 | 0.06 | 0.04-0.16 |
| UNC 3/8-16 | BAI10 / BAI10-K | 0.52 | 0.51 | 0.79 | 0.63 | 0.06 | 0.04-0.16 |
THREAD SIZE(Metric) |
PART NO. |
HOLE SIZE+0.1/-0.0 |
Body Dia /D +0.1/-0.0 |
Length / L±0.4 |
Head Dia / A±0.3 |
Head Height / H+0.15 / -0.05 |
GRIP RANGE |
| M3x0.5 | BEM3 | 5.1 | 5.0 | 9.0 | 8 | 0.8 | 0.5-2.0 |
| M4x0.7 | BEM4 / BEM4-K | 6.1 | 6.0 | 10.5 | 9 | 0.8 | 0.5-2.5 |
| M5x0.8 | BEM5 / BEM5-K | 7.1 | 7.0 | 11.5 | 10 | 1 | 0.5-2.5 |
| M6x1.0 | BEM6 / BEM6-K | 9.1 | 9.0 | 14.5 | 13 | 1.5 | 1.0-3.5 |
| M8x1.25 | BEM8 / BEM8-K | 11.1 | 11.0 | 16.5 | 14.5 | 1.5 | 1.0-4.0 |
| M10x1.5 | BEM10 / BEM10-K | 13.1 | 13.0 | 20 | 16 | 1.6 | 1.0-4.0 |
Rivet Nuts, also known as rivnuts, nutserts, blind rivet nuts, threaded inserts, or rivet nut inserts, are commonly used fasteners designed to provide strong load-bearing threads in thin materials and sheet metal applications.
- 6-32 Rivet Nut Steel
- 6-32 Rivet Nut Stainless Steel
- 8-32 Rivet Nut Steel
- 8-32 Rivet Nut Stainless Steel
- 10-24 Rivet Nut Steel
- 10-24 Rivet Nut Stainless Steel
- 10-32 Rivet Nut Steel
- 10-32 Rivet Nut Stainless Steel
- 1/4-20 Rivet Nut Steel
- 1/4-20 Rivet Nut Stainless Steel
- 5/16-18 Rivet Nut Steel
- 5/16-18 Rivet Nut Stainless Steel
- 3/8-16 Rivet Nut Steel
- 3/8-16 Rivet Nut Stainless Steel
- M4x0.7 Rivet Nut Steel
- M4x0.7 Rivet Nut Stainless Steel
- M5x0.8 Rivet Nut Steel
- M5x0.8 Rivet Nut Stainless Steel
- M6x1.0 Rivet Nut Steel
- M6x1.0 Rivet Nut Stainless Steel
- M8x1.25 Rivet Nut Steel
- M8x1.25 Rivet Nut Stainless Steel
- M10x1.5 Rivet Nut Steel
- M10x1.5 Rivet Nut Stainless Steel








