Product Description
The BSO-M3-25ZI is a self-clinching blind threaded standoff engineered for permanent installation in thin metal sheets. Utilizing a proven clinching profile, the fastener is pressed into a properly sized round hole using a standard squeeze action. The blind-thread (closed-end) design is a critical feature, ensuring that the outer sheet surface remains flush and closed, providing a clean, unmarred appearance while effectively sealing the assembly against the ingress of environmental contaminants. Manufactured from heat-treated carbon steel with a zinc finish, it is ideal for applications requiring significant spacing and secure component mounting in metal chassis.
Environmental Protection: The closed-end design prevents dust, moisture, or debris from passing through the fastener hole.
Permanent Attachment: The self-clinching action ensures the standoff becomes an integral part of the metal sheet, providing high resistance to pushout and torque-out.
Flush Finish: Maintains a smooth exterior panel surface for high-end aesthetic and functional requirements.
Assembly Efficiency: Eliminates the need for secondary operations like tapping or welding and reduces the total count of loose hardware.
Extended Precision Spacing: Provides a reliable 25 mm standoff height for consistent internal component clearance and stacking.
Product Specs
- SKU:
- BSO-M3-25ZI
- Part Number:
- BSO-M3-25ZI
- Thread Size x Pitch:
- M3 x 0.5
- Thread Code:
- M3
- Length Code:
- 25
- Length (L):
- 25 mm
- Material:
- Heat-Treated Carbon Steel
- Finish:
- Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
- Hole Size in Sheet:
- 4.22 mm
- Minimum Sheet Thickness:
- 1 mm
- Maximum Sheet Hardness:
- HRB 80 / HB 150
- Minimum Distance from Hole Centerline to Edge:
- 5.8 mm
- Internal Thread Specification:
- Metric ISO 6H
