Product Description
The BSO-3.5M3-25ZI is a self-clinching blind threaded standoff designed to create permanent, high-strength threads in thin metal sheets. By utilizing a proven self-clinching design, this fastener is installed by pressing it into a round hole using a standard squeeze action. The blind-thread feature ensures that the outer sheet surface remains flush and closed, providing a clean, unmarred appearance while effectively sealing the assembly against environmental contaminants. Manufactured from heat-treated carbon steel with a zinc finish, it is ideal for applications requiring specific spacing and secure component mounting in metal chassis.
Sealed Design: Blind threading keeps the external side of the panel flush and protected from debris or moisture.
Permanent Attachment: Becomes an integral part of the metal sheet once installed, eliminating loose hardware.
High Performance: Offers superior pushout and torque-out resistance in sheets as thin as 1.00 mm.
Streamlined Assembly: Simple press-in installation reduces the need for secondary operations like welding or tapping.
Reliable Spacing: Provides a precise 25 mm standoff height for consistent internal component clearance.
Product Specs
- SKU:
- BSO-3.5M3-25ZI
- Part Number:
- BSO-3.5M3-25ZI
- Thread Size x Pitch:
- M3 x 0.5
- Thread Code:
- 3.5M3
- Length Code:
- 25
- Length (L):
- 25 mm (+0.05 mm / –0.13 mm)
- Material:
- Heat-Treated Carbon Steel
- Finish:
- Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
- Hole Size in Sheet:
- 5.41 mm (+ 0.08 mm)
- Minimum Sheet Thickness:
- 1.00 mm
- Maximum Sheet Hardness:
- HRB 80 / HB 150
- Minimum Distance from Hole Centerline to Edge:
- 6.80 mm
- Internal Thread Specification:
- ANSI/ASME B1.13M, 6H
