K nut - hex nuts with a serrated washer base that resists loosening, in M3 and M4 sizes. Wholesale supply with OEM/ODM customization.
Specifications
Type
K nut (serrated washer base)
Sizes
M3, M4
Standard
National
Material
White zinc plated / zinc plated (per specification sheet)
Customization
OEM/ODM to drawing or sample
Brand
SKN Fastener Co., Ltd.
Origin
Made in Shenzhen, China
Quotation
Send drawing or sample to sales@sknfastener.com
Overview
K nuts (keps nuts) are hex nuts with a serrated washer base formed onto the nut. The serrations bite into the surface to resist loosening, so no separate washer is needed. The product photos show the hex body and the toothed base.
Available Sizes and Options
Standard (National) sizes in M3 and M4 (see the table). Further sizes and materials are quoted from your drawing under our OEM/ODM service.
K nut dimensions (mm). D = inner diameter; s = across flats; H = thickness.
K nut parameters: specification, inner diameter, across flats, and thickness with the dimension drawing
Specification
Inner Diameter D
Across Flats s
Thickness H
M3
3
5.5
3.9
M4
4
7
8
Materials and Finishes
White zinc plated / zinc plated, per the specification sheet. Special materials and finishes follow your drawing.
Applications
Vibration-resistant fastening on machinery, equipment, and panels where a washer and nut are combined. SKN fasteners serve six industries: manufacturing, aviation equipment, industrial equipment, medical devices, stage and entertainment, and the marine industry.
Buyer FAQs
Q: What information do you need to quote?
A: The thread size (M3 or M4) and quantity. A drawing or sample speeds everything up.
Q: Can you manufacture from a drawing or sample?
A: Yes. Send the drawing or sample and we manufacture to match under our OEM/ODM service.
Q: Do you supply bulk orders worldwide?
A: Yes. We supply B2B customers, wholesalers, and OEM clients worldwide from Shenzhen with export packing.
Why SKN
Advantages you can measure
Three strengths built into every pin SKN Fastener ships.
01 / Precision tolerances1
Precision tolerances, reliable resetting
The center core and ball socket are fitted with precise tolerances and rigorously tested over a hundred thousand times to guarantee accurate resetting.
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