High-Strength Steel Hexagon Flange Nuts

Name: Metric High-Strength Steel Flange Nuts

Material: Carbon steel

Class: Class 5, 6, 8, 10

Surface treatment: environmental protection color zinc, environmental protection blue zinc, zinc-nickel alloy, dacromet, black zinc, yellow zinc.

Size: M4, M5, M6, M8, M10, M12, M14, M16, M20 & Inch

Also known as collar nuts, these metric nuts have a flange that distributes pressure across the surface, so you don't need a washer. Because of the flange, they may not fit in tight spaces. Made of high-strength Class 10 steel, they’re about 25% stronger than medium-strength steel flange nuts. Their strength is comparable to Class 10.9 bolts. When choosing your finish, consider your environment. Steel nuts without any finish should be used in dry environments. Nuts with a black-oxide finish have mild corrosion resistance, but only in dry environments. Zinc-plated and zinc yellow-chromate-plated nuts have a layer of zinc that protects the steel under it from rust, extending the life of the nuts. They resist corrosion in wet environments. A black-phosphate finish shields nuts from rusting, even amid oil and grease.ISO 4161 (formerly DIN 6923) and DIN 6331 nuts meet international standards for flange nut dimensions and materials.

Size Can also be According to the Customer's requirement please check the detailed specification sheet details PDF, CAD, 133-134 Page See more product details.

Packing: Inner is Poly foam, out is carton. Then pallet. Carton size: 29*19*19.5CM and 23.5*17.5*8, CM and pallet size is: 215*100*90CM, or as your requirement.