Bevan's patent 1908 Locknut
1908
D. Halpin's patent
1879
Mellor's patent lock nut and bolt
Two Vislok Patent Safety Lock Nuts
Terry's patent 1908 (no.11804) coil friction type locknut
1908
Bevan's patent 1908 Locknut
1908
Bevan's patent 1908 Lock-nut, double roller type, for 1" diam. bolt
Turret lock-nut
"Otter" Lock-nut for 1" diam. bolt
