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Light Duty Bolt Anchor
Light Duty Bolt Anchor

Hollow Bolt

Hollow Bolts are anchoring fasteners designed for fixing into hollow walls such as drywall, gypsum board, or cavity walls. They feature an expanding mechanism that grips the back of the wall to create a secure fastening point. Manufactured to ASTM and DIN standards, they are available in steel, stainless steel, zinc alloy, and nylon types. These bolts provide a strong and reliable solution for mounting fixtures where traditional bolts cannot be used. They are widely used for shelving, cabinets, curtain rails, electrical fittings, and medium-duty wall installations.

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Description

Premium Quality Hollow Bolt Supplier in Dubai, UAE

Unifastener Industries LLC is a reliable supplier and manufacturer of premium-quality Hollow Bolts in Dubai, UAE. The company specializes in industrial fastening solutions, engineering hardware, and precision fasteners designed for construction, machinery, industrial equipment, structural applications, and specialized engineering projects. Hollow Bolts are specially designed fastening components featuring a hollow center that allows the passage of fluids, cables, lubrication systems, or other functional elements through the bolt body. These bolts are widely used in hydraulic systems, mechanical assemblies, industrial equipment, and custom engineering applications requiring both fastening and internal passage functionality. Manufactured using high-grade materials and advanced production standards, Hollow Bolts provide excellent strength, durability, corrosion resistance, and reliable long-term performance in demanding operating conditions.


Standards:
– ASTM C1002 (fasteners for gypsum board)
– ASTM F593 (stainless steel bolts)
– DIN 7984 (low head screws, reference for hollow adaptations)
– DIN 7965 (hollow wall anchors/bolts)
– ISO 15977 (blind fasteners — reference for hollow anchors)

Grades:
– ASTM Grades: A36, F593
– DIN / ISO Grades: 4.6, 5.6, 8.8 (depending on bolt body strength)

Material Options:
– Carbon steel
– Stainless steel (A2 / A4)
– Zinc alloy
– Nylon (for light-duty hollow bolts)

Diameter Range: M4 to M12 (metric) / #8-32 to 1/2″ (inch)

Length Range: 25mm to 120mm

Thread Types:
– Metric coarse pitch (DIN 13 / ISO 261)
– UNC (Unified Coarse, ASTM)

Types:
– Standard hollow wall bolt (metal spreader type)
– Heavy-duty hollow bolt (reinforced expansion wings)
– Nylon hollow bolt (light load applications)

Properties:
– Designed for anchoring into hollow walls, drywall, and partitions
– Expands behind the wall to distribute load over a wide surface
– Provides stronger pull-out resistance compared to wall plugs
– Suitable for medium to heavy-duty loads depending on type

Coating Options:
– Zinc electroplated
– Hot-dip galvanized
– Black oxide
– Stainless steel natural finish

Add-ons:
– Can be supplied with matching screws, washers, or hooks
– Available in retail blister packs or contractor bulk packaging
– Certification/test reports available on request

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