Grade 4.8 Steel Wedge Anchor Bolts M6-M20 Bright Finish Concrete Through Bolts

These steel wedge anchor bolts are designed for concrete fastening where a reliable mechanical expansion connection is required. The anchor passes through the fixture and is tightened into the concrete base. As the nut is tightened, the wedge mechanism expands inside the drilled hole, creating a firm grip against the concrete.

The product is made from steel and listed as Grade 4.8, making it suitable for general construction fastening and standard-duty anchoring applications. The finish is bright / uncoated, and the product color is silver. This finish is suitable for general hardware use, indoor construction, and applications where a clean bright steel appearance is required.

This wedge anchor bolt is suitable for building construction projects and can be used with concrete walls, floors, base plates, rails, supports, frames, brackets, and installation hardware. It follows ISO standard information and is listed with ISO9001:2008 certification.

Specifications Table

Key Features

• Made from steel
• Listed grade: 4.8
• Bright / uncoated silver finish
• Metric wedge anchor bolt design
• Model range: M6-M24
• Size range: M6-M20
• Diameter options include 8 mm and 10 mm
• Strong capacity listed
• Suitable for building construction
• Mechanical expansion fixing for concrete
• ISO standard listed
• ISO9001:2008 certificate listed
• Packed in cartons
• Supplied by Hotop Fasteners from Handan, Hebei, China

Applications

Grade 4.8 steel wedge anchor bolts are suitable for:

• Building construction
• Concrete wall fastening
• Concrete floor fixing
• Bracket installation
• Support frame fixing
• Steel plate anchoring
• Machinery base installation
• Guardrail and railing fixing
• Pipe support fastening
• Hardware installation
• Construction repair work
• General concrete anchoring projects

These anchors are designed mainly for solid concrete and similar strong base materials. They are not generally recommended for hollow brick, hollow block, lightweight block, or weak base materials unless confirmed by testing.

Installation Overview

Select the correct anchor diameter and length according to the fixture and load requirement.

Drill a hole in the concrete with the correct diameter and depth.

Clean dust and debris from the drilled hole.

Insert the wedge anchor through the fixture and into the concrete.

Tap the anchor gently until it reaches the required embedment depth.

Tighten the nut with a wrench.

The wedge expansion section expands inside the hole and locks the anchor in place.

Check that the fixture is stable before applying load.

Correct installation is important for anchor performance. Hole diameter, embedment depth, concrete strength, edge distance, spacing, and tightening torque should be confirmed before use.

Advantages

• Grade 4.8 steel construction

Provides standard mechanical strength for general construction anchoring and fastening applications.

• Mechanical expansion fixing

The wedge structure grips inside the concrete after tightening, helping create a stable connection.

• Bright silver finish

The bright / uncoated finish provides a clean steel appearance for general hardware and construction use.

• Wide size coverage

The listed size range includes M6-M20, with model coverage from M6-M24.

• Construction-ready design

Suitable for building construction, concrete fastening, brackets, supports, and installation hardware.

• Bulk supply friendly

Carton packing and sample availability make it suitable for distributors, construction suppliers, and project procurement.

FAQ

Q1: What product is this?

A1: This product is a steel wedge anchor bolt, also described as an expansion screw through bolt or concrete wedge anchor bolt.

Q2: What material is listed?

A2: The listed material is steel.

Q3: What grade is listed?

A3: The listed grade is 4.8.

Q4: What finish does the product have?

A4: The listed finish is bright / uncoated, and the color is silver.

Q5: What sizes are available?

A5: The product size range is listed as M6-M20, with model number range M6-M24.

Q6: What diameters are shown?

A6: The displayed diameter options include 8 mm and 10 mm.

Q7: What is the application?

A7: The listed application is building construction.

Q8: What standard is listed? A8: The listed standard is ISO.

Q9: Does the product have certification?

A9: The page lists ISO9001:2008 certification.

Q10: What is the packing method?

A10: The listed packing method is carton.

Q11: Can samples be provided?

A11: Yes. The page lists sample availability.

Q12: What base material is suitable for wedge anchors?

A12: Wedge anchors are mainly used in solid concrete. For hollow or weak base materials, testing or technical confirmation is recommended.

---

Need Grade 4.8 steel wedge anchor bolts for concrete fastening and building construction?

Contact Hotop Fasteners in Handan, Hebei, China for M6-M20 steel wedge anchor bolts with bright / uncoated silver finish.

Send your required size, diameter, quantity, packing method, and application details to get a fast quotation and suitable anchoring solution.