nut
High-strength mining nuts and rock bolt nuts for underground support systems. Various thread types and grades for reliable bolt tensioning.
Mining Nut - High Strength Nuts for Rock Bolt Systems
High-strength mining nuts for rock bolt and anchor systems in underground mining. Dome nuts, hex nuts, and flanged nuts available. Compatible with split set bolts, PT bars, and cable bolts. China rock bolt accessories manufacturer.
Spherical Washer / Stop Washer
Spherical Washer is a metal washer applied to bolt, nut and anchoring connection positions. It features a spherical or conical shape with a through hole in the middle, which can deliver stable pressure-bearing support during tightening and installation. This product is applicable to working conditions where mounting surfaces have slight angular deviations, joint surfaces are not completely flat, or enhanced compression stability is required. It helps relieve concentrated local stress and enables firmer fitting between fasteners and connecting components. Spherical washers are widely used in industrial and mining equipment, mine support, rail fittings, steel structure connections, heavy machinery assembly and other scenarios. They can be customized in accordance with bolt specifications, hole diameters, outer diameters, thicknesses, materials and surface treatment requirements, and are suitable for engineering projects, equipment maintenance and bulk procurement of spare parts.
Dome Nut / Hex Nut
Dome Nut / Hex Nut is a metal fastener applicable to industrial and mining equipment as well as mechanical assembly scenarios. It features a hexagonal main body that facilitates installation and removal with wrenches or sockets. Its top adopts an arc dome design, presenting a smoother and neater appearance after exposure and lowering the risk of bumps caused by sharp edges. The internally threaded bore of the product enables matching use with bolts and screws of corresponding specifications, making it suitable for bracket fixing, equipment connection, engineering machinery, conveying equipment and general industrial structural assembly. Its black metallic finish delivers a strong industrial durable texture. Customization of dimensions, thread specifications, materials and surface treatments is available upon consultation based on drawings, samples or order requirements.
Flange Hex Tension Nut
This flange hex tension nut is integrally forged from alloy steel, featuring a thickened and heightened body together with an widened flange base and a precise full-thread structure. Subject to quenching, tempering and black oxide treatment, it boasts strong bearing capacity as well as excellent tensile and tension resistance. Compatible with finish-rolled threaded steel, anchor bolts and tension lead screws, it is widely applied to heavy-load tension scenarios including mine support, bridge prestressing, engineering machinery, tunnels and foundation pits. A full range of standard sizes are in stock, and customization of various non-standard dimensions and anti-corrosion processes is available.