Overview

Basic Info.

Model NO. DIN 6921 Flange Head Bolt

Connection Common Bolt

Head Style Hexagonal

Standard DIN, ISO

Grade 4.8 5.8 6.8 8 10.9 12.9

Application Machinery, Chemical Industry, Environmental, Building

Finish Self Colour, Black Oxide, Zinc Plated, HDG

Delivery 20-30 Days

Certification DIN 6921

Packag Color Customizable

Thread Standard UNC/UNF/UNEF/UNS/BSW/BSF/Metric Coarse/Metric Fine

Custom Order Customization by Drawing/Sample

ODM/OEM Available

Service Custom-Made Service

Size Standard Metric

Material Test Certificate Have

Sample Samples in Stock Are Free with Freight Collect

Price Terms FOB/CFR/CIF/DDP/DAP

Color Silver

Quality Control 100% Quality Inspection

Application2 Connection, Fastening

Transport Package Bulk Pack Small Boxed

Specification M5 TO M20

Trademark Qewitco

Origin China

HS Code 731816

Production Capacity 10000ton/Year

Packaging & Delivery

Package Size 25.00cm * 25.00cm * 19.00cm

Package Gross Weight 25.000kg

Product Description

Hexagon Flange Head Bolts DIN 6921

We offer a comprehensive range of hardware fasteners including screws, bolts, nuts, washers, studs, anchors, nails, and drill bits. All products meet international standards (DIN, BS, ANSI, GB, JIS) and we provide complete OEM/ODM services with custom design support.

This self-tapping anchor is a versatile, one-piece solution designed for high-performance anchoring in concrete, brick, and stone without requiring wall plugs or resin. Its non-expansion design makes it ideal for edge-fixing applications, while the threaded anchor ensures secure fastening by turning the substrate into a natural nut. Available in multiple sizes, materials (carbon steel/stainless steel), and finishes, it combines strength (grades up to 12.9/A4-80), corrosion resistance, and ease of installation for reliable use in demanding construction environments.

Hexagon Flange Head Bolts DIN 6921

Hexagon Head Set Screws DIN 933

Standard: DIN 6921

Size: Dia. – M5 to M20, Length – 16 to 400mm

Material: Carbon Steel, Stainless Steel

Grade:

• 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 (Carbon Steel)
• A2-50, A2-70, A4-70, A4-80 (Stainless Steel)

Finish: Self Colour, Black Oxide, Zinc Plated, HDG

Packaging: Bulk Pack | Small Boxed

Standard: DIN 933, ISO 4017, DIN 961, ISO 8676, DIN 558

Size: M3 - M52, Length 6 - 200mm

Material: Carbon Steel, Stainless Steel, Brass

Grade: 4.8, 5.8, 6.8, 8, 10.9, 12.9, A2-50, A2-70, A4-70, A4-80

Finish: Self Colour, Zinc Plated, HDG, Zinc Flake

Packaging: Bulk Pack | Small Boxed

Cup Square Bolts (Carriage Bolts) & Nuts DIN 603/934

Concrete Bolt

Standard: DIN 603 C/W Hex Nuts DIN 934

Size: M6 – M24

Material: Carbon Steel

Grade: 4.8, 5.8, 6.8, 8.8, 10.9 (Carbon Steel)

Finish: Self Colour, Zinc Plated, HDG, Zinc Flake

Packaging: Bulk Pack | Small Boxed

Standard: To Drawing

Size: 6mm to 16mm

Material: Carbon Steel

Finish: Zinc Plated, HDG, Mechanical Galvanized, Zinc Flake

Packaging: Bulk Pack | Small Boxed

Specification

Model NO. Hexagon Flange Head Bolts DIN 6921

Standard DIN 6921

Size Dia. – M5 to M20, Length – 16 to 400mm

Material Carbon Steel, Stainless Steel

Grade 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 (Carbon Steel) A2-50, A2-70, A4-70, A4-80 (Stainless Steel)

Finish Self Colour, Black Oxide, Zinc Plated, HDG

Packaging Bulk Pack | Small Boxed

Our Advantage

• Multiple Thread Types Available - Offering a comprehensive selection of thread specifications to meet diverse application requirements.
• Versatile Head Options - Including hex head, countersunk head, round head, U-bolt, and other configurations.
• Customization Support - Full ODM/OEM services with tailored solutions for specific project needs.
• Complete Fastener System - Matching washers and nuts available for one-stop procurement.
• 100% Quality Guarantee - Rigorous quality control processes ensuring industry-leading standards.
• 24/7 Technical Support - Dedicated sales team standing by for immediate consultation and quotation.

Packing & Delivery

Exhibition & Activities

Company Profile

Qewitco Fasteners Co., Ltd

Factory Direct · Global Service · Quality Assurance

Company Profile

Founded in 2004 and headquartered in Qingdao, China, Qewit has been dedicated to providing high-quality industrial products and professional supply chain solutions to global clients for nearly 20 years. With extensive industry expertise and consistent product quality, we have earned long-term trust and partnerships with numerous international customers.

Core Advantages

1. Factory Direct, Best Prices: Own production facilities, eliminating middlemen. Direct connection with end customers ensures most competitive pricing. Full-process control from raw materials to finished products.
2. 30,000+ Product Lines, One-Stop Sourcing: Comprehensive range of industrial fasteners and hardware products. Meets procurement needs across various industries and standards. Simplifies your purchasing process, saving time and costs.

FAQ

Q: Do you accept custom orders (OEM/ODM)?

A: Yes, we specialize in OEM/ODM manufacturing and can customize products according to your specifications, including design, materials, and packaging.

Q: What are your payment terms?

A: Our standard terms are 30% deposit via T/T, with the remaining 70% due before shipment. Other payment methods (L/C, PayPal, etc.) can be negotiated.

Q: What trade terms do you support?

A: We offer FOB, CFR, CIF, DDP, and DAP. Other Incoterms can be discussed based on your logistics preferences.

Q: How do you ensure product quality?

A: We implement strict QC procedures at every stage, from raw material inspection to final shipment, ensuring 100% compliance with international standards.

Q: What is your production experience?

A: With 20+ years in fastener manufacturing, we have extensive expertise in bulk production, quality control, and global supply chain solutions.