Connect 35414 Brass Nut M8 x 1.25 x 13mm Hex 10pc

Brass 3/4" BSP Back Nut Wide Flanged Threaded Backnut

Brass 1/2" BSP Back Nut Wide Flanged Threaded Backnut

Plumbsure Brass Flange Threaded Backnut (Dia)19mm

Plumbsure Brass Flange Male Nut (Dia)19mm

12 x Brass Exhaust Imperial Manifold Nuts 5/16" UNF High Temperature

Plumbsure Brass Flange Threaded Nut (Dia)12.7mm

Plumbsure Brass Female Threaded Backnut (Dia)12.7mm, Pack of 2