We proudly use hardware by PEM. To confirm specifications not listed here, search for the SKU in PEM’s hardware catalog.
H = Hole size in sheet (+0.003”/-0.000”)
J = Bend allowance (find with Bend Calculator)
K = Minimum distance from center of hole to cut edge
N = Minimum distance from center of hole to edge of bend allowance area (J)
M = Minimum distance from hole center to hole center for two of the same hardware SKU
P = Minimum distance from hole center to hole center for two different hardware SKUs, see our Hardware Guidelines
Nut, 5/16-18 Zinc plus Clear Chromate
Aluminum: 5052, 6061, 7075 Steel: Mild, G90
| SKU | S-0518-1 |
| Thread Size | 5/16-18 |
| Hole size in sheet +0.003″/-0.000″ (H) | .413″ |
| Minimum sheet thickness | 0.056″ |
| Maximum sheet thickness | N/A |
| Fastener material | Carbon Steel |
| Minimum distance hole C/L to edge (K) or bend (N) | .380″ |
| Minimum C/L to C/L distance between two of the same hardware SKU (M) | .587″ |
| Recommended panel material | Steel/Aluminum |
| Coating type | Zinc |
| Thickness (T) above material after install | .230″ |
| Aluminum material ranges (5052, 6061, 7075) | 0.063″-0.500″ |
| Steel material ranges (CRS, HRPO, HR) | 0.059″-0.500″ |
We proudly use hardware by PEM. To confirm specifications not listed here, search for the SKU in PEM’s hardware catalog.
H = Hole size in sheet (+0.003”/-0.000”)
J = Bend allowance (find with Bend Calculator)
K = Minimum distance from center of hole to cut edge
N = Minimum distance from center of hole to edge of bend allowance area (J)
M = Minimum distance from hole center to hole center for two of the same hardware SKU
P = Minimum distance from hole center to hole center for two different hardware SKUs, see our Hardware Guidelines
Nut, 5/16-18 Passivated and/or Tested
Stainless Steel: 304, 316
| SKU | SP-0518-1 |
| Thread Size | 5/16-18 |
| Hole size in sheet +0.003″/-0.000″ (H) | .413″ |
| Minimum sheet thickness | 0.056″ |
| Maximum sheet thickness | N/A |
| Fastener material | A236 Hardened Stainless Steel |
| Minimum distance hole C/L to edge (K) or bend (N) | .380″ |
| Minimum C/L to C/L distance between two of the same hardware SKU (M) | .755″ |
| Recommended panel material | Stainless Steel |
| Coating type | Passivated and/or tested |
| Thickness (T) above material after install | .230″ |
| 304 Stainless Steel material ranges | 0.048″-0.500″ |
| 316 Stainless Steel material ranges | 0.060″-0.500″ |