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    Thru-Hole Unthreaded Standoffs - Types SO, SOA SOS - Metric
    Thru-Hole Unthreaded Standoffs – Types SO, SOA, SOS
        
    
    
            
                
                    
                        
                
            
                
    
            These standoffs, which use the proven self-clinching design, install with a squeeze in properly sized round holes - and become permanently mounted in the thin sheet.
Unthreaded standoffs are also available for spacing multi-panel assemblies.
        
Unthreaded standoffs are also available for spacing multi-panel assemblies.
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    B - Thru-hole Diameter + 0.1 - 0.08 (mm)
- 3.1
- 3.6
- 4.1
- 5.1
L - Length +0.05 –0.13 (mm)
Fastener Material
- 300 Series Stainless Steel
- Aluminum
- Heat-Treated Carbon Steel
Standard Finish
- Passivated and/or Tested Per ASTM A380
- Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
| Item # | Hole Size in Sheet + 0.08 | B - Thru-hole Diameter + 0.1 - 0.08 | C - 0.13 | H Nom. | L - Length +0.05 –0.13 | Fastener Material | Standard Finish | CAD | 
|---|---|---|---|---|---|---|---|---|
| SO-43.1-3ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 3 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-43.1-4ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 4 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-43.1-6ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 6 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-43.1-8ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 8 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-43.1-10ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 10 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-43.1-12ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 12.00 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-43.1-14ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 14 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-43.1-16ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 16 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-43.1-18ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 18 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-43.1-20ZI | Hole Size in Sheet + 0.08 N/A 4.22 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 4.20 mm | H Nom. N/A 4.8 mm | L - Length +0.05 –0.13 N/A 20 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-3ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 3 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-4ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 4 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-6ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 6 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-8ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 8 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-10ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 10 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-12ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 12.00 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-14ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 14 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-16ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 16 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-18ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 18 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.1-20ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 20 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.6-3ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.6 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 3 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.6-4ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.6 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 4 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.6-6ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.6 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 6 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.6-8ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.6 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 8 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
| SO-63.6-10ZI | Hole Size in Sheet + 0.08 N/A 5.41 mm | B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.6 mm | C - 0.13 N/A 5.39 mm | H Nom. N/A 6.4 mm | L - Length +0.05 –0.13 N/A 10 mm | Fastener Material N/A Heat-Treated Carbon Steel | Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless | CAD                                                    
 N/A   | 
 
                          
 
                                            
 
                                                                