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McMaster 94166A140 Black-Oxide High-Strength Steel Hex Nut, Class 10, M8 x 1.25 mm Thread Size, Pack of 25

UPC: | Harmonization / Schedule B : 7318.16.0060

Country of Origin: | Shipping Weight: 0.266 lbs

Original price $55.07 - Original price $55.07
Original price
$55.07
$55.07 - $55.07
Current price $55.07

The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.

High-Strength Steel—Rated Grade 8 or Class 10, these nuts are about 25% stronger than medium-strength steel nuts. They are commonly used to fasten components in valves, pumps, motors, and other high-stress applications. To avoid stripped threads during installation, make sure your screw has a comparable strength rating. Nuts include a report with a traceable lot number and a description of their chemical and physical properties.

Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

Hex Nut Profile Standard
Fastener Strength Rating High
Material Black-Oxide Steel
Thread Size M8 × 1.25 mm
Width 13 mm
Height 6.5 mm
Fastener Strength Grade/Class Class 10
Specifications Met DIN 934
Certificate Form Digital
Certificate Type Material Certificate with Traceable Lot Number
Drive Style External Hex
Nut Type Hex
Performance High Strength
System of Measurement Metric
Thread Direction Right Hand
Thread Fit Metric Class 6H
Thread Spacing Coarse
Thread Type Metric
Country of Origin United States, Canada, China, India, Italy, Malaysia, South Korea, Taiwan, Thailand, Vietnam
DFARS Compliance Not Specialty Metals Compliant
Export Control Classification Number (ECCN) EAR99
REACH Compliance REACH (EC 1907/2006) (02/04/2026, 253 SVHC) Compliant
RoHS Compliance RoHS 3 (2015/863/EU) Compliant
Schedule B Number 731816.0000
U.S.–Mexico–Canada Agreement (USMCA) Qualifying No