Coach Screws (DIN 571)
What is DIN 571?
Answer: DIN 571 is a German standard that specifies the requirements for hexagonal head coach screws, also known as lag screws or lag bolts . These are heavy-duty fasteners characterized by a hexagonal head and deep coarse threads, designed for robust fastening in materials like wood and masonry .
What is the ISO equivalent of DIN 571?
Answer: DIN 571 - Hex wood screws. Current norm: DIN 571. Equivalent norms: CSN 021810; PN 82501; UNI 704. Technical information.
What Is the Difference Between Coach Screws and Wood Screws?
Answer: Technically speaking, a coach screw is a wood screw, however, coach screws are larger, heavier, and stronger than standard wood screws that you may find at your local hardware store, making them suitable for heavier applications. If you had to spot on the difference, it's that traditional wood screws often are equipped with a Phillips or Pozi drive type, however, coach screws have a hexagonal head.
Question: What are the available materials and strength grades for the DIN 571 - Hex wood screws series?
Answer: Coach screws conforming to DIN 571 are typically made from various materials, each with associated strength grades .
Carbon Steel & Mild Steel: Common strength grades include 4.8 and 8.8 .
Stainless Steel (Corrosion Resistant): Common grades are A2-70 (similar to SS 304) and A4-80 (similar to SS 316) .
Question: Is Fullerkreg a manufacturer of DIN 571 - Hex wood screws? Where are they produced?
Answer: Yes
Question: Can coach screws be used outside?
Answer: Yes, coach screws can be used outside, especially the stainless steel variants from Fullerkreg, which are corrosion-resistant and ideal for outdoor use.
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DIN 571 Specifications
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DIN 571 PDF | DIN 571 weight chart |
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Active Stock List (All items are currently in stock)：
| PIC | PRODUCT | SIZE | GRADE | FINISH | THREAD |
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DIN 571 – Hex Head Wood Screws A2 Stainless Steel | M4 to M12 | A2 Grade 70 | - | Coarse |
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DIN 571 – Hex Head Wood Screws A4 Stainless Steel | M4 to M12 | A4 Grade 70 | - | Coarse |
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DIN 571 – Hex Head Wood Screws Carbon Steel Grade 4.8 Zinc CR3 | M4 to M16 | 4.8 Grade | Zinc CR3 | Coarse |