Product Description
The BSO-440-32ZI is a self-clinching blind threaded standoff engineered for permanent installation 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, which causes the sheet material to cold-flow into the pilot. The blind-thread feature is a vital attribute, ensuring 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.
Environmental Protection: The closed-end (blind) thread prevents the ingress of dust, moisture, or debris through the chassis.
High Pushout Resistance: The self-clinching design ensures the fastener becomes a permanent part of the sheet.
Flush External Surface: Keeps the mounting side of the panel smooth and professional for high-end aesthetic requirements.
Reduced Assembly Costs: Eliminates secondary operations like tapping or welding and minimizes the need for extra loose hardware.
Long Spacing Reach: Provides a precise 1.000 in standoff height for significant internal component clearance.
Product Specs
- SKU:
- BSO-440-32ZI
- Part Number:
- BSO-440-32ZI
- Thread Size:
- .112-40 (#4-40)
- Thread Code:
- 440
- Length Code:
- 32
- Length (L):
- 1.000 in
- Material:
- Heat-Treated Carbon Steel
- Finish:
- Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
- Hole Size in Sheet:
- .166 in
- Minimum Sheet Thickness:
- .040 in
- Maximum Sheet Hardness:
- HRB 80 / HB 150
- Minimum Distance from Hole Centerline to Edge:
- .27 in
- Internal Thread Specification:
- Unified Class 2B, ANSI B1.1
