Dome Nut Mining

Dome nut is hot forged and threaded to fit for thread bar anchor, used for Bar Anchors / Soil Nails, Rock Bolts, Securing of rock walls, Mining,Tunnels and caverns, Mesh fixing etc.

Dome nuts material carbon steel C45, 40CR heat treatment to grade8, 10., load force can match for steel bar grade PSB500/630, PSB830/1030, PSB930/1080, PSB1080/1230 etc. 

Dome nut (light duty) Dimesions & Material

Dia/mm	SW/mm	L/mm	d/mm	Weight/kg,pcs	load force
15	32	35	43	0.18	45# for PSB500,PSB830 bar
20	36	45	49	0.32	45# for PSB500,PSB830 bar, mining rock bolt system
25	41	45	55	0.37	45# for PSB500 bar, mining rock bolt system
25	41	50	60	0.39	45# for PSB670/800, PSB830 bar, mining rock bolt system
32	50	60	65	0.68	45# for PSB500,PSB830 bar, mining rock bolt system
40	60	70	88	1.3	45# for PSB500 bar

 

 

Dome nut size:  OEM service available by drawing data.

 

Dome nut surface:  Black, Hot dip galvanized, epoxy coated etc.

 

Dome nut packing: in carons and wooden case.