Product Description
The BSO-3.5M3-6ZI is a self-clinching blind threaded standoff designed to provide permanent, high-strength threads in thin metal sheets. Using a proven clinching design, the fastener is installed by pressing it into a round hole with a standard squeeze action, causing the sheet material to cold-flow into the pilot. The blind-threaded (closed-end) design is a critical feature that ensures the outer sheet surface remains flush and closed, protecting internal threads from debris and moisture while maintaining a clean, professional appearance. This model is manufactured from heat-treated carbon steel with a zinc plated finish for reliable performance in hardware assemblies.
Flush External Surface: Blind threading keeps the reverse side of the panel smooth and sealed against environmental contaminants.
Permanent Attachment: Self-clinching action ensures the standoff becomes an integral part of the assembly with high pushout resistance.
Efficient Installation: Installs into a simple round hole with any standard press, eliminating the need for secondary operations like tapping.
Optimized Spacing: Provides a precise 6 mm standoff length for consistent component clearance.
Reliable Strength: Hardened carbon steel construction allows for secure mounting in sheets with hardness up to HRB 80
Product Specs
- SKU:
- BSO-3.5M3-6ZI
- Part Number:
- BSO-3.5M3-6ZI
- Thread Size x Pitch:
- M3 x 0.5
- Thread Code:
- 3.5M3
- Length Code:
- 6
- Length (L):
- 6 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
- Dimension H (Nominal):
- 6.4 mm
