The TRADEPACK M10 x 25mm Expanding Loose Bolt pack includes 5 heavy-duty expanding bolts featuring a four-way expansion shield system for superior anchoring strength. Each bolt incorporates a special retaining spring that ensures secure wedge encapsulation during expansion. These versatile fasteners are ideal for both internal and external applications, perfect for securing heavy machinery, racking, trunking, pipework, switchgear, fencing, and joinery structures. The robust design makes them particularly suitable for demanding installations like crash barriers, industrial doors, and seating fixtures.