FTM Krafter Spring Washers 6.1 mm – Zinc-Plated Steel DIN 127 Washers for Secure Fastening
The FTM Krafter spring washers are precision-engineered zinc-plated steel washers designed to provide reliable locking force in bolted connections. With a 6.1 mm inner diameter and a compact 1.6 mm thickness, they are suited for standard metric fastening tasks in workshop and industrial settings.
Zinc plating delivers effective corrosion protection for indoor and outdoor fastening applications
DIN 127 standard geometry ensures consistent spring pressure and reliable joint retention
6.1 mm inner diameter fits standard metric bolt shafts precisely
Set of 16 pieces provides sufficient quantity for routine assembly and repair tasks
What sets the Krafter spring washer apart
The combination of hardened steel construction and zinc plating offers a durable, cost-effective solution for preventing loosening caused by vibration and thermal expansion. The DIN 127 profile delivers a balanced spring force that maintains clamping pressure over extended periods without damaging the fastened surface.
Ideal for...
These spring washers are suited for assembly technicians, maintenance personnel, and workshop operators who need dependable locking washers for metric fasteners in machinery, electrical enclosures, and structural steel connections.
Application of FTM Krafter Spring Washers
Place the washer on the bolt shaft behind the nut or screw head
Compress the washer slightly during tightening to engage the spring action
The washer exerts continuous radial force to resist loosening from vibration
Suitable for reuse within the elastic deformation range of the spring
FTM is a Swiss fastening technology brand distributed through Alltron, offering a comprehensive range of standard and custom fastening components for industrial, workshop, and construction applications. The brand focuses on DIN-compliant, quality-tested products that meet the precision requirements of professional users in the Swiss market.
FTM Krafter spring washers prevent bolted joints from loosening due to vibration and thermal expansion. They are used in workshop, industrial, and structural fastening applications where a reliable locking force is required.
DIN 127 is the German industrial standard for external-toothed spring washers. It defines the washer's geometry, spring force, and material requirements to ensure consistent performance in metric bolted connections.
Inner diameter: 6.1 mm, outer diameter: 11.8 mm, thickness: 1.6 mm. The zinc-plated steel construction provides corrosion resistance for both indoor and outdoor use.
Each set contains 16 spring washers, providing a sufficient quantity for standard assembly and maintenance tasks without the need to purchase additional packs.
Spring washers can be reused within their elastic deformation range. However, for critical or safety-relevant connections, a new washer is recommended to ensure full spring force and reliable locking performance.
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