4xdog
Well-known member
What does the GJ community think of the different styles of tamper-resistant nuts?
There are conical grooved nuts, steeply-tapered square nuts, two-hole spanner nuts, and other kinds of keyed nuts. Probably quite a few types in addition to the examples shown below.
I'd appreciate any recommendations for metric M8 nuts that are (1) stainless or other corrosion-resistant material, (2) vibration resistant equivalent to the Nyloc nuts now used as the application will see lots of vibration cycles.
The application would be to add some security to the iKamper hard-shell rooftoop tent (RTT) clamped to the Thule crossbars over the bed of my Tacoma.
I've used iKamper's complicated v3 bar clamps on previous trips, but reaching the 5mm socket head bolts to tighten the clamp is awful with the restricted access when the RTT mounted below cab level. I'm planning to go back to the much simpler bolt-and-plate design of my previous RTT and other Thule bike/ski racks. That'll make mounting and removal easy-peasy. For me, that's a plus point. But for any thieves interesested in this relatively light, relatively high-value RTT it's a negative point.
The iKamper brackets are crazy in their complexity.
The bolt-and-plate style used on my former ARB RTT is a lot simpler. Here shown checking different bolt lengths to give an idea of this mounting approach.
There are conical grooved nuts, steeply-tapered square nuts, two-hole spanner nuts, and other kinds of keyed nuts. Probably quite a few types in addition to the examples shown below.
I'd appreciate any recommendations for metric M8 nuts that are (1) stainless or other corrosion-resistant material, (2) vibration resistant equivalent to the Nyloc nuts now used as the application will see lots of vibration cycles.
The application would be to add some security to the iKamper hard-shell rooftoop tent (RTT) clamped to the Thule crossbars over the bed of my Tacoma.
I've used iKamper's complicated v3 bar clamps on previous trips, but reaching the 5mm socket head bolts to tighten the clamp is awful with the restricted access when the RTT mounted below cab level. I'm planning to go back to the much simpler bolt-and-plate design of my previous RTT and other Thule bike/ski racks. That'll make mounting and removal easy-peasy. For me, that's a plus point. But for any thieves interesested in this relatively light, relatively high-value RTT it's a negative point.
The iKamper brackets are crazy in their complexity.
The bolt-and-plate style used on my former ARB RTT is a lot simpler. Here shown checking different bolt lengths to give an idea of this mounting approach.