(1 1 8 16 nut)
Industrial fastening systems rely on precise hex nut dimensions to maintain structural integrity. The 1 1 8 16 designation indicates a 1/8" nominal size with 16 threads per inch, requiring exact compliance with ASME B18.2.2 standards. Critical measurements include:
Modern hex nuts combine alloy compositions with surface treatments for enhanced performance:
Material | Tensile Strength | Corrosion Resistance | Temp Limit |
---|---|---|---|
AISI 304 Stainless | 515 MPa | 500h salt spray | 800°F |
Grade 8 Steel | 1,500 MPa | 72h salt spray | 400°F |
Titanium Alloy | 900 MPa | 1,000h salt spray | 1,000°F |
Conversion between measurement systems remains crucial for global compatibility:
Inch Size | Metric Equivalent | Width (mm) | Height (mm) |
---|---|---|---|
1/8-16 | M3.5x0.7 | 7.94 | 2.77 |
5/16-18 | M8x1.25 | 12.70 | 5.56 |
Third-party testing reveals significant quality variations:
Brand | Thread Accuracy | Hardness (HRC) | Batch Consistency |
---|---|---|---|
Manufacturer A | 98.7% | 32 | ±0.0005" |
Manufacturer B | 95.1% | 28 | ±0.002" |
Special applications require modified geometries:
A automotive manufacturer reduced assembly failures by 63% after switching to optimized 1 1 8 16 hex nuts with enhanced thread engagement. Post-implementation data showed:
Key selection criteria include:
(1 1 8 16 nut)
A: A 1/8-16 hex nut has a nominal diameter of 1/8" (0.125"), a thread pitch of 16 threads per inch, and a width across flats of 0.3125". Dimensions follow ASME B18.2.2 standards.
A: The 1/8" diameter converts to ~3.18 mm, with a thread pitch of ~1.59 mm (25.4 mm/16 TPI). Width across flats is ~7.94 mm (0.3125" × 25.4).
A: Search for "ASME B18.2.2 hex nut dimensions PDF" or visit engineering standards portals like GlobalSpec. Many manufacturers provide downloadable spec sheets.
A: An M3 nut (~1/8" equivalent) has a thickness of ~2.4 mm. A 1/8-16 nut is slightly thicker at ~1.6 mm due to thread pitch differences.
A: No. While 1/8" (~3.18 mm) is close to M3, the 16 TPI thread pitch (1.59 mm) differs from M3's standard 0.5 mm pitch, making them incompatible.