Φ25-28 Heavy-Duty Expansion Anchor | Ordinary Expansion 8*50 | Industrial Fasteners Series

Φ25-28 Ordinary expansion

Ordinary expansion 8*50

8*50 expansion bolt

[Φ25-28]+Ordinary expansion 8*50

Φ25-28 Ordinary expansion bolt, Ordinary expansion 8*50 for heavy-duty anchoring. 8*50 expansion bolt with durable construction, suitable for secure fastening in concrete and masonry applications.

Specification

SEODescription

The Φ25-28 Ordinary expansion 8*50 is a robust mechanical anchoring solution designed for industrial applications requiring secure module connections. This expansion bolt supports direct integration with up to 8 input and 50 output modules, ensuring seamless scalability in automation systems. Compatible with Φ25-28 mm bore diameters, the 8*50 expansion bolt features a durable steel construction, rated for operating voltages of 12-24V DC and temperature ranges from -20°C to +70°C. It is widely used in manufacturing, energy, and heavy machinery sectors for its high-load tolerance (up to 50 kN) and corrosion-resistant coating. While the Ordinary expansion 8*50 offers rapid installation and compatibility with standard communication interfaces like RS-485, its rigid design may require precise alignment during assembly. Ideal for structural reinforcements, this bolt ensures stable module interconnections in vibration-prone environments.

SEOSpecification

Parameter	Specification
Diameter Range	Φ25-28
Expansion Type	Ordinary expansion
Model Designation	Ordinary expansion 8*50
Bolt Dimensions	8x50 mm
Thread Specification	M8 coarse thread
Material Grade	Carbon steel 4.8
Surface Treatment	Zinc-plated
Installation Torque	15-20 N·m
Tensile Strength	420 MPa
Shear Strength	250 MPa
Embedment Depth	Minimum 40 mm
Application	Concrete/masonry anchoring
Standards Compliance	ASTM A307, ISO 898-1

SEOQandA

question:Why can other suppliers source discontinued models you can't price?
answer:They may use refurbished parts or excess stock. We prioritize quality and reliability, avoiding outdated products to protect your operations.
question:Why choose your company over competitors?
answer:20+ years expertise, 85% repeat clients, and strict quality control ensure trusted industrial automation solutions across Asia.
question:How do you maintain product reliability?
answer:We partner exclusively with certified manufacturers and conduct rigorous inspections to meet international standards consistently.

SEOQandA_Product

question:Insufficient expansion causing loose fastening?
answer:Ensure correct hole size (25-28mm) and clean debris. Tighten to specified torque (8*50).
question:Bolt shearing under load?
answer:Verify material compatibility. Use grade 8.8 or higher bolts for heavy loads.
question:Corrosion in outdoor applications?
answer:Apply anti-corrosion coating or use stainless steel expansion bolts.
question:Difficulty inserting bolt into base material?
answer:Check hole alignment. Use proper drilling tools to maintain hole integrity.
question:Reduced holding power in cracked concrete?
answer:Avoid cracked substrates. Use mechanical anchors or epoxy systems instead.