
These threaded black nylon knock-in inserts are designed to fit various square tubing sizes in a versatile or standard configuration.
Threaded square tube knock-in inserts allow you to fit castors and level feet to the ends of tables, workbenchs, or shelving legs.
Multi-Fit Inserts (A.)
| Order Code | Suits | Thread Size |
| 1567 | 25.4 x 25.4mm | 10mm |
| 1566 | 25.4 x 25.4mm | 12mm |
| 1506M/12 | 32 x 32mm | 12mm |
| 1507M/12 | 38 x 38mm | 12mm |
| 1519M/12 | 50 x 50mm | 12mm |
| 1526M/16 | 25.4 x 25.4mm | 16mm |
| 1512M/16 | 30 x 30mm | 16mm |
| 1506M/16 | 32 x 32mm | 16mm |
| 1507M/16 | 38 x 38mm | 16mm |
| 1519M/16 | 50 x 50mm | 16mm |
| 506M/20 | 32 x 32mm | 20mm |
Square Tube Inserts (B.)
| Order Code | Suits | Thread Size |
| 1515 | 25.4 x 25.4mm | 12mm |
| 1506/12 | 32 x 32mm | 12mm |
| 1505/16 | 25.4 x 25.4mm | 16mm |
| 1506/16 | 32 x 32mm | 16mm |
| 1518B | 32 x 32mm | 20mm |