M20 x 30 Mm Black Oxide Class 12.9 Socket Head Shoulder Screw Best Seller They are swivel fittings with

They are swivel fittings with a straight thread and a 30° cone that create a mechanical seal with male NPTF fittings

GR8 HHCS ZY UNF 5/16-24x3/4

Beam Clamps are a temporary fixing solution also known as girder clamps are used to suspend or secure fixtures wires threaded rods and other hardware

The seal is formed by pressing a bonded seal like an O-ring against the flat face of the male fitting

Reduces dust accumulation and preserves the beauty of the surface

M20 x 30 Mm Black Oxide Class 12.9 Socket Head Shoulder Screw Best Seller They are swivel fittings withShoulder screws also called shoulder bolts allow for rotation of pulleys linkages and other moving parts in engines and mechanical applications.