Used for securing items where a cavity is present behind the surface. The combination head on the screw accommodates both slot and cross-recess screw drivers. High-performance cavity fixing solution. Ideal for securely fastening heavy objects to soft-faced partition boards. This all-metal cavity fixing features expanding arms that spread out behind the board, providing a large load-bearing area. Equipped with anti-rotation teeth to ensure a solid anchorage and a bonded washer with an integral thread for enhanced reliability. Constructed entirely of metal for applications that require heat resistance. Specialist fixing guns are available for repetitive fixing tasks. Color: Silver Material: Metal Size: M5*37mm Package Contents: 5*Expansion bolts Only the above package content included, other products are not part of this offer. Note: Light shooting and different displays may cause the actual color of the item to differ slightly from the picture. Allowed measurement error is +/- 1-3cm.