CL™ Self-Clinching Nuts
H™ Nuts and HNL™ Prevailing Torque Locknuts
PDF page 32 · PEM Fastener Catalogue
- Meets prevailing torque requirements for IFI 100/107 Grade B (unified) and ANSI B18.16.1M (metric) locknuts.
- H nut is recommended for use in sheets HRB 80 / HB 150 or less.
- HNL nut is recommended for use in sheets HRB 60 / HB 107 or less.
Part Number Designation
| Part Number | Type | Not Heat-treated | Locking | Thread Size Code | Finish |
|---|---|---|---|---|---|
| H–0616ZI | H | 0616 | ZI | ||
| HNL–0616LZ | H | N | L | 0616 | LZ |
Drawing callouts: Type H — E, C, A, T1; Type HNL — E, C, A, T2. Clinching profile may vary.
Unified — all dimensions are in inches.
| Thread Size | Type | Thread Code | A (Shank) Max. | Min. Sheet Thickness | Hole Size In Sheet +.005 −.000 | C Max. | E ±.010 | T1 Non-locking ±.005 | T2 Self-locking ±.010 | Min. Dist. Hole ℄ To Edge | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Non-Locking | Self-Locking(1) | ||||||||||
| .250-20 (1/4-20) | — | HNL | 0420 | .058 | .058 | .344 | .343 | .500 | .189 | .380 | |
| .313-18 (5/16-18) | — | HNL | 0518 | .058 | .058 | .413 | .412 | .575 | .240 | .420 | |
| .375-16 (3/8-16) | H | HNL | 0616 | .058 | .058 | .500 | .499 | .650 | .300 | .480 | |
Metric — all dimensions are in millimeters.
| Thread Size x Pitch | Type | Thread Code | A (Shank) Max. | Min. Sheet Thickness | Hole Size In Sheet +0.13 | C Max. | E ±0.25 | T1 Non-locking ±0.13 | T2 Self-locking ±0.25 | Min. Dist. Hole ℄ To Edge | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Non-Locking | Self-Locking(1) | ||||||||||
| M6 x 1 | — | HNL | M6 | 1.48 | 1.48 | 8.75 | 8.72 | 12.7 | 5 | 10 | |
| M8 x 1.25 | — | HNL | M8 | 1.48 | 1.48 | 10.5 | 10.47 | 14.6 | 6.3 | 11 | |
| M10 x 1.5 | H | HNL | M10 | 1.48 | 1.48 | 12.7 | 12.67 | 16.5 | 7.9 | 12 | |
(1) During installation, the projections on the heads of HNL self-locking nuts may be flattened. This is not detrimental in any way and will not affect self-locking or self-clinching performance.