Extreme-Strength Steel Heavy-Profile Hex Nut
M42 x 3 mm Thread Size
Hex Nut Profile | Heavy |
Fastener Strength Rating | Extreme |
Material | Steel |
Thread Size | M42 × 3 mm |
Width | 70 mm |
Height | 42 mm |
Fastener Strength Grade/Class | ASTM Grade 2H |
Specifications Met | ASTM A194 |
Drive Style | External Hex |
Nut Type | Hex |
Performance | High Pressure |
System of Measurement | Metric |
Thread Direction | Right Hand |
Thread Fit | Metric Class 6H |
Thread Spacing | Fine |
Thread Type | Metric |
Country of Origin | China |
DFARS Compliance | Specialty Metals COTS-Exempt |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (06/25/2025, 250 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 731816.0000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | No |
About 10% wider and taller than standard-profile hex nuts, these handle heavier loads by distributing them over a larger area.
These nuts are hardened, so they maintain their strength under high pressure and temperature. Pair them with ASTM A193 screws to fasten critical components, such as valves and flanges, in pressure tanks, boilers, and heat exchangers. About 10% wider and taller than standard-profile hex nuts, these handle heavier loads by distributing them over a larger area.
Extreme-Strength Steel—These nuts are about 20% stronger than high-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
Steel—Best for dry environments since moisture will cause these nuts to rust.
The information in this 3-D model is provided for reference only.