Product Description
The PEM® BSOS-3.5M3-22 is a heavy-duty, high-performance blind threaded standoff engineered to provide rigid, deep clearance spacing inside thin sheet metal assemblies. Featuring a specialized self-clinching design, it installs permanently into a pre-drilled round hole using a standard pressing action, eliminating the need for loose hardware or messy welding processes. Its blind-threaded closed end ensures that the reverse side of the metal panel stays completely flush and unmarred, creating a sleek aesthetic while sealing the assembly against dust and moisture. Constructed from premium 300 Series Stainless Steel, it delivers exceptional durability and long-term corrosion resistance, making it an essential choice for high-density server racks, medical imaging equipment, and industrial controls.
Permanent Self-Clinching Fit: Displaces host material into the clinch profile with a simple squeeze, providing extreme resistance to pullout and rotational torque forces.
Blind-End Shielding: The closed-bottom thread design ensures a pristine, flat exterior chassis surface while protecting internal threads from outside debris.
300 Series Stainless Steel: Engineered for demanding industrial environments, offering high strength and reliable corrosion protection.
Extended Clearance Height: Supplies a reliable 22 mm physical separation distance, perfect for isolating multi-tiered printed circuit boards or heavy electronic components.
Product Specs
- SKU:
- BSOS-3.5M3-22
- Part Number:
- BSOS-3.5M3-22
- Brand:
- PEM® (PennEngineering®)
- Product Category:
- Blind Threaded Standoffs – Types BSO, BSOA, BSOS – Metric
- Thread Size x Pitch:
- M3 x 0.5
- Thread Code:
- 3.5M3
- Length Code:
- 22
- Length (L):
- 22 mm (+0.05 mm / -0.13 mm)
- Material Code:
- S
- Fastener Material:
- 300 Series Stainless Steel
- Standard Finish:
- Passivated and/or Tested Per ASTM A380
- Thread Specification:
- Internal, ANSI/ASME B1.13M, 6H
- Minimum Sheet Thickness:
- 1.00 mm
- C (-0.13 mm):
- 5.39 mm
- F Min. (Thread Depth):
- 9.50 mm
- H Nom. (Hex Size):
- 6.4 mm
- Minimum Distance from Hole C/L to Edge:
- 6.80 mm
- For Use in Sheet Hardness:
- HRB 70 / HB 125 or Less
