Expansion Bolts (also known as expansion anchors) are mechanical fasteners that secure objects to concrete, brick, or stone by expanding a sleeve or plug when tightened. Ideal for heavy-duty applications, they consist of a threaded bolt, expansion sleeve, and nut, providing secure hold in non-wood substrates. Manufactured from carbon steel (zinc-plated), stainless steel (304/316), or galvanized steel for durability.
- Material:
- Carbon Steel (zinc-plated, Grade 4.8/8.8).
- Stainless Steel (304/316 for corrosion-prone environments).
- Size Range:
- Diameter: M6–M24 (metric) / 1/4"–1" (imperial).
- Length: 30–200 mm (embedment depth varies by substrate).
- Design:
- Sleeve Types: Split sleeve (standard), drop-in anchor, or wedge anchor.
- Head Style: Hex head, countersunk, or flat head.
- Load Capacity:
- Tensile Strength: 500–2,000 kg (depending on size and material).
- Standard Carbon Steel/Zinc-Plated: 1,000 pieces (in-stock sizes).
- Stainless Steel/Custom Designs: 2,000 pieces (small-batch sampling available).
Factory Advantages: ISO-certified production, load test reports, support for non-standard lengths, corrosion-resistant coatings (e.g., Dacromet), and bulk orders with lead times of 10–25 days.
- Construction: Mounting shelves, rails, and signage on concrete walls.
- Industrial: Securing machinery, conveyor systems, and storage racks.
- DIY & Home Improvement: Installing curtain rods, bike racks, and fence posts.
- Outdoor Projects: Anchoring pergolas, playground equipment, and solar mounts.
- Easy Installation: Requires only a drill and wrench; no pre-threading needed.
- Vibration Resistance: Expansion mechanism ensures secure hold in dynamic environments.
- Corrosion Protection:
- Zinc plating (500+ hours salt spray) for indoor/outdoor use.
- 316 stainless steel (1,000+ hours salt spray) for coastal or industrial settings.
- Non-Standard Sizes: Custom diameters, lengths, or sleeve designs for unique substrates.
- Special Coatings: Epoxy, black oxide, or color-coded finishes.
- Kit Assemblies: Pre-packaged with matching washers and nuts for convenience.
Contact Us
Get a quote for your expansion bolt needs! Factory-direct pricing and global shipping for construction, industrial, and residential projects.
JH Bolt Co., Ltd is a professional manufacturer of different types of bolts with more than 15 years rich manufacturer experience. The factory area is more than 1500 squares with more than hundreds different types ofnevproduction machines. There are more than 50 people who work here for at least 5 years.With quality &customer frst, staffs second, then company, Our products are widely recog-nized and trusted by users all over the world. Proft for the development of communication, We are here for you 12 hours a day, 7 days a week!
