About Bolt Dome Caps Cover:
Material: PE plastic
Color: Black
Package Contains: 50 pcs hex nut caps.
Whether the nut cover is threaded: no thread.
Models: M8 to M20 (13mm to 30mm).
Features:
Made of PE Plastic, safe and strong, not easy to deform.
Hex nut cap provides a secure and protective covering for the nut.
Plastic higher dome bolt nuts are good for protecting screws from rust, water, dust, etc.
Just need to put the right size screws into the hole for the bolt caps and press down hard.
Suitable for machine equipment, petrochemical, valve, gas pipeline, bridge base guardrail, street light and other places.