Carbon Steel Carriage Bolt DIN 603 Square Neck for Timber Construction and Wood-to-Metal Joining

Self-Locking Square Neck:

• The precision-engineered square shoulder beneath the head embeds into wood or pre-punched metal holes, ensuring one-sided installation without the need for a secondary wrench.

Enhanced Security Profile:

• The smooth, low-profile dome head lacks a drive (no hex or slot), making it virtually impossible to loosen or tamper with from the exterior side, ideal for public infrastructure.

High Load-Bearing Capacity:

• Available in Property Classes 4.8, 8.8, and stainless steel variants, providing reliable tensile strength for load-bearing timber joints.

Superior Corrosion Protection:

• Offered with Hot-Dip Galvanizing (HDG) or Zinc plating, tested for 72-500+ hours of salt spray resistance to survive harsh Egyptian and Mediterranean environments.

Versatile Sizing (M5-M24):

• A wide range of diameters and lengths allows for use in everything from delicate furniture assembly to massive bridge timber supports.

Carbon Steel:

• Low to medium carbon steel (Grade 4.8/8.8) following ISO 898-1 standards.

Stainless Steel:

• Grade 304 (A2) for general use and Grade 316 (A4) for marine-grade corrosion resistance.

Surface Finishes:

Blue/White/Yellow Zinc Plating:

• Standard protection for indoor use.

Hot-Dip Galvanized (HDG):

• Heavy-duty protection for outdoor construction (ISO 1461).

Black Oxide:

• For aesthetic or low-reflectivity industrial applications.

Timber Construction:

1. Joining heavy wooden beams in housing and decking.

Furniture Manufacturing:

2. Assembly of wooden tables, benches, and shelving where a flush finish is required.

Fencing & Decking:

3. Securing wooden slats to posts with a tamper-resistant head.

Playground Equipment:

4. Ensuring safety by eliminating sharp bolt heads and preventing disassembly.

Agricultural Machinery:

5. Mounting wooden components to metal frames in tractors and trailers.

Bridge Decking:

6. High-strength timber-to-steel connections in pedestrian bridges.

Expertise:

• 15+ years of dedicated fastener manufacturing in Egypt.

Strategic Location:

• Based in 6th of October City, Giza, facilitating fast logistics to Europe, Africa, and the Middle East.

Certified Quality:

• ISO 9001:2015 and IATF 16949 certified production lines.

Production Power:

• Equipped with 50+ high-speed multi-station machines producing over 70 varieties of fasteners.

Global Reach:

• Trusted by B2B clients in 30+ countries.

Efficiency:

• Proudly maintaining a 98.5% On-Time Delivery (OTD) rate.

Value:

• Factory-direct sourcing offers 15-30% cost savings compared to international trading intermediaries.

Ports of Loading:

• Alexandria, Port Said, and Damietta (Egypt).

Incoterms:

• FOB, CIF, CFR.

Standard Packaging:

• 25kg bags or boxes on heat-treated pallets.

What is the MOQ for DIN 603 Carriage Bolts?

1. Our minimum order quantity is typically 500-1000 pieces per size, depending on the material and dimensions.

Can I request samples before bulk ordering?

2. Yes, we provide samples within 10-15 days. Standard samples are often free, while custom toolings may require a small fee.

What is the lead time for a full container load?

3. Bulk production typically takes 15-25 working days after deposit confirmation.

Do you accept third-party inspections?

4. Absolutely. We regularly work with SGS, BV, and TÜV for quality verification.

Which material is best for outdoor use?

5. For outdoor timber construction, we recommend Hot-Dip Galvanized (HDG) carbon steel or Stainless Steel A4-80 for maximum lifespan.