Radolid Protection Caps

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Radolid Protection Caps

Radolid Protection Caps will ensure proper bolting even after years!

At the left is an example of bolted joints with Radolid Protection Caps (one cap cut open) and without protection caps. After a five-year test the effects of atmospheric corrosion is very damaging and therefore costly.

Radolid Protection Caps are easily installed by just pressing-on to the bolted joint by hand. The barbed edge snaps on and prevents the caps from accidentally being knocked off. Radolid Caps are reusable. We also recommend loading one-quarter of the cap with Advance high melt corrosion inhibitor grease for added protection.

Standard Radolid Caps are manufactured of high density black UV-resistant polyethylene that resist temperatures of -84 degrees F to +210 degrees F. They are also resistant to water, brine, hydraulic fluid, diesel, greases, gasoline, hydrochloric acid concentrate, sulphuric acid to 40%, nitric acid to 40%, ammonia, and acetum. Further resistance properties can be given upon request.

Standard Protective Caps are black but are also available in clear, white, red, grey, silver and other special colors on request. Different types manufactured include Type (1) for standard nuts or bolts without washers, Type (2) fits over a nut or bolt with washer, an adjustable telescopic two piece cap and different lengths to even fit check nuts. Our caps are sized to fit heavy hex nuts only; they will not fit finished nuts properly. Radolid Protection Caps are manufactured in sizes to fit 1/4 inch to 3 3/4 inch diameter bolts or studs. High temperature material of Polyamid A4H for use up to +430 degrees F is available.