Roughneck® P2 Hard Cap, 8 point Ratchet, Quick Lok® Block and 3RW3 Ratchet Headband, P2HN, Blue ORS NASCO and seizing Establishes greater clamp load Known and seizing Establishes greater clamp load Known as Loctite® C5 A® Light Deburring Roughneck caps are built to provide exceptional crack resistance and handle hard knocks in the toughest places The P2A series tolerates heat up to 370° wile delivering a long service life under many adverse conditions The P2HN series is designed for high performance at extremely elevated temperatures up to 500° in these extreme environments Roughneck cap style hard hats offer exceptional impact and crack resistance and surpass many performance tests Available in two versions to meet a variety of workplace conditions