Hebei Tianlong Fasteners Co., Ltd

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Mine Dome Mushroom Head Nuts

Mine dome mushroom head nuts are special mine‑support fasteners, matching with rock bolts、threaded steel bolts and FRP bolts.

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.