Product Description
The BSO-440-22ZI is a self-clinching blind threaded standoff designed 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.
Closed-End Design: The blind thread keeps the exterior panel surface flush and prevents the entry of debris or moisture.
Permanent Attachment: Once installed, the standoff becomes an integral part of the metal sheet, offering high pushout and torque-out resistance.
Streamlined Hardware: Eliminates the need for secondary operations like tapping and reduces the number of loose parts in an assembly.
Precision Spacing: Provides a consistent .687 in standoff height for internal component clearance.
Hardened Material: Heat-treated carbon steel ensures durability and strength when installed in sheets with hardness up to HRB 80.
Product Specs
- SKU:
- BSO-440-22ZI
- Part Number:
- BSO-440-22ZI
- Thread Size:
- .112-40 (#4-40)
- Thread Code:
- 440
- Length Code:
- 22
- Length (L):
- .687 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
