A 4pcs shield anchor is a type of expansion anchor, specifically designed for heavy-duty applications in concrete, brick, and block walls. It consists of a bolt, nut, washer, and a four-piece shield sleeve, which expands against the wall of the drilled hole when the bolt is tightened, creating a secure hold.
Technical Parameters
| Application | Machinery, Chemical Industry, Environmental, Building |
| Finish | Color-Zinc Plated |
| Standard | According to Drawing |
| Material | Carbon Steel, Stainless Steel, Brass |
| Coating | Zinc Plated, HDG, etc. |
| Packing | 25 Kgs Per Carton or Gunny Bag, in Pallet. |
| Transport Package | 25kg/Bag or Box, Then Bulk in Pallet. |
| Specification | DIN, GB, Jisb, ISO, ANSI/Asme B, W. S. W |
| Trademark | Donghuang |
| Origin | China |
| HS Code | 731815000 |
| Production Capacity | 8000 Tons Per Year |
The 4PCS Heavy Duty Shield Anchor Expansion Shell Anchors are professional fasteners for construction, machinery, and infrastructure. Crafted from high-carbon steel (tensile strength ≥600MPa), 304/316 stainless steel (high-corrosion resistance), and brass (decorative indoor use), they comply with DIN 1023, GB/T 15786, ISO 898-1, and ANSI/Asme B 18.5. Anti-corrosion coatings include color-zinc plating (8-12μm, 48-hour salt spray test per ASTM B117) and hot-dip galvanized (HDG, 85-100μm, 1000-hour salt spray test). Each set includes a precision bolt (thread grade 6g), grade 8 hexagonal nut, load-distributing flat washer, and ductile iron shield sleeve. Backed by 8000 tons annual production, it meets large-volume order needs (e.g., municipal engineering).
Secures 5-20mm steel beams, curtain wall brackets, and concrete supports to C30-C60 concrete or solid brick. For commercial curtain walls, it fixes 10-ton units to concrete cores (contact area ≥50cm²) and complies with seismic intensity 8-degree standards. In residential projects, it reinforces basement foundations (e.g., anchoring anti-crack steel plates) to prevent deformation.
Fixes 5-50 ton heavy equipment (lathes, reactors, pumps) to concrete foundations (compressive strength ≥25MPa). Resists 50Hz vibration; M16 size offers pull-out force ≥15kN, exceeding heavy-equipment requirements.
In wastewater facilities, HDG-coated anchors secure 8-ton sedimentation tank equipment against acidic/alkaline corrosion. In municipal projects, it fastens highway guardrails (10kN lateral impact), 50kg road signboards, and 30kg street lamp bases for long-term outdoor stability.
Materials match environments: 316 stainless steel (molybdenum ≥2%) for coastal projects, high-carbon steel for heavy loads, brass for indoor decor. All materials pass strict inspection to meet international standards.
Compliance with DIN 1023 (Europe) and ANSI/Asme B 18.5 (North America) eliminates cross-border compatibility issues. Each batch includes a Certificate of Compliance (CoC).
Zinc-plated (5-8 years indoor life) and HDG (10-15 years outdoor life) coatings form dense rust barriers. HDG uses 450℃ molten zinc (purity ≥99.95%) for wear resistance.
Packaged in 25kg moisture-proof cartons, 50kg gunny bags, or 1000kg ISPM 15-fumigated pallets. Urgent orders have 7-10 day lead time (small batches ≤500 sets) and 15-20 days (large batches ≥10,000 sets).
Adjusts bolt length (10-100mm), shield sleeve diameter (12-50mm), thread type (M6-M24 metric/1/4"-1 imperial), and embedment depth (10-50mm). E.g., custom M20 anchors (60mm embedment, thread grade 5g) for elevator guide rails. Accepts custom orders from small batches to large industrial volumes, with 3-5 day sample production.
Offers super duplex stainless steel (2507 grade) for strong acid environments, heat-resistant alloy steel (12Cr1MoV) for ≤300℃ power plants. Coating options include Dacromet (1200-hour salt spray) and color-customizable epoxy resin.
All custom products undergo in-process inspections and 100% finished testing (pull-out, torque, salt spray) per ISO 898-1. Provides third-party reports (SGS/CTI) for high-safety projects (e.g., nuclear power auxiliaries).
