Unibridge type of bolt with an outer hexagonal structure and drilled holes, designed for securing the lead seal nut of electricity meters. Its unique design includes special perforations for installing cotter pins, ensuring security and tamper resistance. Widely used in electricity meters and other devices requiring secure sealing, it effectively prevents unauthorized access and tampering.

For quicker setups than a separate T-slot nut and stud, slide these bolts into T-slot tracks on machine tool tables.
18-8 Stainless Steel—Stainless steel bolts have excellent corrosion resistance.

With a universal fit, our Plastic Wing Nuts are compatible with various solar panel mounting systems, offering versatility and convenience for different installation requirements.

self-clinching blind nuts provide permanently mounted blind threads in metal sheets as thin as 1 mm.
Provides barrier to protect threads against foreign matter. Protects internal components from intrusion of screws.

Captive screws (also referred to as captivated fasteners or captive bolts) typically involve multiple components, which can result in higher production costs and increased importance for manufacturers. This specialization leads to a diverse range of features with various combinations tailored to specific applications. However, the fundamental principle remains consistent: a screw is securely held within a panel, either directly or through a separate retaining mechanism. Concerns regarding cross-threading can be addressed by incorporating a MAThread®, which introduces a curvature to the initial threads to ensure proper alignment. Certain products feature a knob cap screw or thumb screw for tool-free installation, while others may recess the screw within the retainer to discourage manual disassembly.

Ribs under the head dig into the surface of soft metal and plastic to keep the bolt from turning when tightening a nut. These bolts are commonly used in tight spaces with moving parts, such as grain elevators and other belting systems.