Hebei Tianlong Fasteners Co., Ltd

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Mine Dome Mushroom Head Nuts

Mushroom head dome nuts can also be called dome nuts, spherical hexagonal nuts, ring nuts, anchor nuts, etc. It is most commonly found on hollow anchors.

Category:

Rock Bolt Nut

Email:

liudong@tl-fastener.com

Email:

bolt@tl-fastener.com

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产品描述

Product Overview
Mine dome mushroom head nuts are special mine‑support fasteners, matching with rock bolts、threaded steel bolts and FRP bolts.
With unique mushroom dome head / round dome design, they are widely used in coal mines, metal mines and tunnel underground roadway support, locking pallet and bolt body, to provide stable pre-tightening force for roof & side wall support.
Material & Structure
◆ Material：High-strength carbon steel / malleable cast iron
◆ Structure：Integral forming，inner standard bolt thread，smooth dome mushroom head
◆ Surface treatment：Black oxide、hot dip galvanized、electro-galvanized
◆ Matching：Fit all standard threaded rock bolts & FRP solid bolts
Key Features
✅ Dome Mushroom Head Design
Arc round head will not crack the pallet，disperse pressure evenly，avoid stress concentration，effectively protect supporting plate.
✅ High Strength & Toughness
Integral forging/casting，high bearing capacity，no cracking，no sliding tooth under heavy underground pressure.
✅ Easy Installation
Smooth thread，tight locking，fast mounting，perfect for underground rapid construction.
✅ Corrosion Resistance Optional
Galvanized treatment available，adapt to wet、acidic mine water and harsh underground environment.
✅ Wide Compatibility
Standard thread size，universal with mine bolt systems，easy replacement and spare.
Common Specifications
◆ Matching thread：M16 / M18 / M20 / M22 / M24
◆ Size：Customized according to bolt diameter
◆ Type：Standard mushroom dome nut / reinforced heavy-duty type
◆ Usage：Coal mine roof bolt, FRP bolt, threaded bolt matching
Application
◆ Coal mine underground roof & rib bolt supporting
◆ Tunnel、hydraulic engineering、underground cavern reinforcement
◆ Matching accessories for all kinds of mine rock bolts
◆ Mine safety support fastening parts

About Us

Hebei Tianlong Fastener Co., LTD., founded in 2006, has been deeply engaged in the field of fastener manufacturing for 18 years, and is a modern enterprise integrating scientific research and development, intelligent manufacturing, global marketing and technical services.

The company has always adhered to the innovation-driven development strategy, through systematic talent training, forged a core team composed of senior engineers, innovative technicians and industry elites, combined with advanced management system, automatic machining center and intelligent testing system, to build a full chain of excellence guarantee system through research and development, production and quality control. Continue to provide customers with high-precision, high-strength, high-stability fastening solutions.