Technical Data Sheet: M3 Hexagon Domed Cap Nut (Acorn Nut)
Here are the detailed specifications for the M3 Domed Nut manufactured according to DIN 1587 standard. [1, 2]
1. Dimensional Specifications (Dimensions in mm)
| Parameter | Specification Description (参数描述) | Nominal Dimension (公称尺寸) | Tolerance / Range (公差范围) |
|---|---|---|---|
| d | Thread Size (螺纹规格) | M3 | – |
| P | Thread Pitch (螺纹牙距) | 0.50 mm (Coarse Thread) | Right-Hand Thread |
| s | Wrench Size / Across Flats (对边宽度/套筒尺寸) | 5.50 mm | 5.32 mm – 5.50 mm |
| e | Width Across Corners (对角宽度) | 6.01 mm (Min) | Min. 6.01 mm |
| h | Total Height (总高度) | 6.00 mm / 6.50 mm (High Type) | ±0.25 mm |
| m | Hexagon Base Thickness (六角部分厚度) | 2.40 mm | 2.15 mm – 2.40 mm |
| t | Min. Thread Engagement Depth (最小有效螺纹深度) | 4.50 mm | Min. 4.50 mm |
| dk | Dome Diameter (圆顶外径) | 5.00 mm | Max. 5.00 mm |
2. General Product Information
- Manufacturing Standard: DIN 1587 (High Type Hexagon Domed Cap Nuts) [1]
- Measurement System: Metric (mm) [1]
- Available Materials:
- Stainless Steel: A2-70 (SUS304) / A4-70 (SUS316 Marine Grade)
- Carbon Steel: Grade 6 / Grade 8 (Zinc Plated, Black Oxide, or Chrome Plated)
- Brass / Copper
- Surface Finish Options: Plain, Bright Zinc Plated (Cr3+), Yellow Zinc Plated, Nickel Plated, Polished [1, 2]
- Application: Used to cover exposed bolt threads for a clean, decorative finish and to prevent injury from sharp thread edges. [1]
We offer custom manufacturing for Domed Nut in Stainless Steel (SS304/SS316) and various finishes like Hot-Dip Galvanized or Dacromet. Contact us for a custom quote.
Contact Us: sales@wansonfastener.com
Website: www.wansonfastener.com
