• Ezzy Hardware Stores

Bolt Securing System, Nord Lock

Ezzy Hardware Stores offers Nord Lock Bolt Securing System. The Nord-Lock bolt securing system uses geometry to safely lock bolted joints in the most critical applications. Nord-Lock is a pair of washers with a wedge-locking action meeting DIN 25201, which is a unique method using tension instead of friction. The rise of the cams between the Nord-Lock washers is greater than the pitch of the bolt. In addition, there are radial teeth on the opposite side. The washers are installed in pairs, cam face to cam face. When the bolt and/or nut is tightened the teeth grip and seat the mating surfaces. The Nord-Lock washer is locked in place, allowing movement only across the face of the cams. Any attempt from the bolt/nut to rotate loose is blocked by the wedge effect of the cams. Nord-Lock washers positively lock the fastener in a joint, which is subjected to any kind of vibration or dynamic loads. The company, established in the year 2003, is an importer, distributor and dealer of fasteners, dairy valves and fittings, etc. This unique wedge-locking system offers the following advantages:

• Maximum safety
• Resists loosening caused by vibration and dynamic loads
• Ease of assembly and disassembly
• Locking function is not affected by lubrication
• Positive locking at low and high preload levels
• Controllable preload
• Same temperature characteristics as standard bolt/nut
• Reusable