Within the production process, all SOLID-LOCK® products undergo strict quality testing to ensure that the quality of each and every product meets certification requirements. Every set of products produced is assigned a control number so that it can be easily traced and guaranteed that it is an authentic SOLID-LOCK® washer. In the beginning of October 2015, every pair of SOLID-LOCK® washer began being labeled with lasers. On each washer you will notice the SOLID-LOCK® brand name, control number, and a style code. This certifies that all our products are identifiable and completely traceable.
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>>The sole use of imported materials
The raw materials of SOLID-LOCK® washers undergo a very precise and careful selection process. All chosen materials are imported directly from Europe.
>> In-house laboratory
SOLID-LOCK® has its own fully equipped in-house laboratory using the latest technology and highly advanced testing equipment. Solid-Lock`s wedge locking washers and Solid-Lock`s production line is type approved from independent classification societies.
A Junker test is a mechanical test to determine the point at which a bolted joint loses its preload when exposed by transverse vibration. Design engineers apply the test to determine the point at which fastener securing elements – such as lock nuts, wedges and lock washers – fail when subjected to vibration.
The Junker test has been adopted into international fastener standards such as DIN 65151 and is the established method used for analyzing the self-loosening behavior of secured and unsecured threaded fasteners under transverse loading conditions by vibration testing. Solid-Lock ® has its own fully equipped in-house laboratory using the latest technology and highly advanced testing equipment. Solid-Lock is the only manufacturer in the world who is able to test wedge-lock washers, with its’ own Junker Test Machine, measuring a uniquely broad fastener size range, which spans M3 – M45 ISO Metric / #4 – 1 3/4 in UTS. up 42 mm.