(250pcs) BelMetric M8 JIS Hex Head Serrated Flange Nut 12mm Wrench, Class 10 Yellow Zinc for Automobile, Motorcycle, and Mechanical Applications NF8X12YLW

M8x1.25, M8x1.250, M8, 8mm X 1.25mm Metric 12mm Wrench JIS Hex Head Serrated Flange Nut BULK PACKAGE Utilizes a 12mm wrench for quick installation and to easy fastening. Material: Class 10 Hardened Steel Finish: Yellow Zinc Plated with Shiny Finish These serrated hex flange nuts provide better holding power than regular hex nuts and are practical since there is no need to purchase separate washers as the washer is already built-in with the nut. The serrations on the nuts form a connection which resists loosening when wrencHead into place by displacing material on the mating surface, thus providing a locking action. In Yellow Zinc finish. Sometimes referred to as "gold" colored finish, yellow zinc chromate plating has largely replaced original yellow cadmium plating previously common to the restoration fastener industry. Diameter: 8mm Pitch: 1.25 Coarse Thread Reduced Wrench Size: 12mm Flange Outer Diameter Max: 17.5mm Head Height Max Including Flange: 8.0mm Standard: JIS B1190 Thread Direction: Right Hand Drive Style: External Hex Also known as serrated face nuts, spin lock, or serrated tooth nuts. These nuts are intended for use with Class 10.9 hardened bolts or lower. It is important to make sure that when buying a flange bolt to go along with this flange nut, the steel class (hardness) of the bolt is the same as that of the nut for an optimal strength combination. 250 Pieces Per Package

• Flange Nuts are fasteners that look like a standard hex nut but the bottom has a widened circular flange or skirt that acts as a built-in washer and distributes the holding power of the nut evenly across the surface for a more secure fastening solution. These types of nuts are designed to remove the deficiencies commonly associated with the use of washers.
• The serrations on the nut are meant to dig into the surface of the work to create a more secure connection that resists loosening which also makes it a popular choice with electronics fasteners as they are less prone to damaging fragile, soft metal surfaces as compared to a traditional nut.
• <b> M8 - M12 Diameter JIS (Japanese Industrial Standard) Flange nuts </b> have smaller hex sizes than ISO and ANSI type bolts and are commonly used for import cars, auto repair, truck, car, and motorcycle frames, vehicle engines, transmission and exhaust. They are also mostly used for automotive and fastening applications such as steering and suspension parts, cylinder, and flywheels, and also for high strength mechanical applications and forged parts.
• The Yellow Zinc restoration quality finish, aside from the golden aesthetic, provides a marginally better protection from rust and corrosion against water contact. The JIS Flange Nut plated yellow zinc is mostly used for high strength automotive applications, machines and machine builders, and also in the mining industry.
• <b>BelMetric has been in business for over 40 years providing customers with metric hardware & specialty automotive supplies. We offer an extensive variety of metric fasteners, metric nuts, metric bolts, Time-Sert kits and we stock hard-to-find items like hanger bolts, wing nuts, left hand bolt, 6921 flange bolts, and more. </b>