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2021 High quality Cement Anchor Screws - DIN571 Coach Screws – Qijing

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We stick with the theory of "quality first, company first, steady improvement and innovation to satisfy the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our provider, we deliver the items together with the fantastic good quality at the reasonable value for Self Locking Bolts , Slotted Head Screw , Tam Anchor , To acquire a consistent, profitable, and constant advancement by getting a competitive advantage, and by continuously increasing the price added to our shareholders and our employee.
2021 High quality Cement Anchor Screws - DIN571 Coach Screws – Qijing Detail:

What is a coach screw?

A coach screw, also otherwise known as a lag screw, or confusingly, a lag bolt, has a coarse single wood thread that is designed to be fixed into timber, making it a ‘single-component’ fixing. A coach screw is normally fixed into timber, but you can also fix them into nylon wall plugs to make a heavy duty fixing into masonry. Coach screws do not come with nuts, nor do they need nuts, as the coarse single thread is designed to fix straight into timber. Coach screws are mostly used for timber to timber applications, but they can also be used for metal to timber, or timber to masonry applications.

Size

China-Fastener-Carbon-Steel-Zinc-Plated-Stainless-Steel-Self-Tapping-Hex-Head-Wood-Screw-Hexagon-Head-Lag-Screw-DIN571-Wooden-Screw-Hex-Large-Coach-7
China-Fastener-Carbon-Steel-Zinc-Plated-Stainless-Steel-Self-Tapping-Hex-Head-Wood-Screw-Hexagon-Head-Lag-Screw-DIN571-Wooden-Screw-Hex-Large-Coach-9

product features

Coach screws are typically made to DIN 571 and are mostly made from mild steel, for the same reasons pointed out for coach bolts above. Coach bolts are mostly partially threaded, although this is not specified in DIN 571 so it can vary. The thread length will always be at least 60% of the total length of the screw.

Applications

Coach bolts are mostly used for timber to timber applicationos, but they can also be used for metal to timber, or timber to masonry applications.

application

Differences Between Coach Bolts and Carriage Bolts?

While coach bolts and carriage bolts are distinct screw types, they do share similarities in their general head shape, and the fact that they are suitable for use with wood. The most significant difference is the coach bolt’s presence of a self-tapping thread, which makes it able to create its own threads in timber – by contrast, a carriage bolt features a machine thread, so will always require an adequately sized pilot hole.

The difference in application for these two screw types is also not as simple as boiling down to the difference between a carriage and a coach. Confusingly, carriage and coach are near synonymous terms, and carriage bolts and coach bolts can be found in many designs for both types of vehicle.

While there is little in the way of concrete evidence for the origin of the term ‘carriage bolt’. One theory is that it originates from the Old French ‘carriage’, which does not refer to carriages in a vehicular sense, but is more closely related to the English word ‘carry’, potentially because this type of bolt was meant for load-bearing applications, rather than being specifically designed for use in the manufacture of carriages.

Product Parameters

Product name DIN571 coach screws
Material Mild steel or Stainless steel 316/304
Head Hexagonal head
Drive Hexagonal
Thread shrink shank, coarse thread

Packaging and Shipment

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Our Market

major-market

Our Customers

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Product detail pictures:

2021 High quality Cement Anchor Screws - DIN571 Coach Screws  – Qijing detail pictures

2021 High quality Cement Anchor Screws - DIN571 Coach Screws  – Qijing detail pictures

2021 High quality Cement Anchor Screws - DIN571 Coach Screws  – Qijing detail pictures

2021 High quality Cement Anchor Screws - DIN571 Coach Screws  – Qijing detail pictures

2021 High quality Cement Anchor Screws - DIN571 Coach Screws  – Qijing detail pictures

2021 High quality Cement Anchor Screws - DIN571 Coach Screws  – Qijing detail pictures


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Our products and solutions are greatly recognized and trustworthy by customers and may fulfill constantly changing financial and social requires for 2021 High quality Cement Anchor Screws - DIN571 Coach Screws – Qijing, The product will supply to all over the world, such as: Istanbul, Berlin, Malaysia, Item have passed by means of the national qualified certification and been well received in our main industry. Our expert engineering team will often be ready to serve you for consultation and feedback. We are able to also deliver you with cost-free samples to meet your specifications. Ideal efforts will probably be produced to provide you the most beneficial service and solutions. Should you be interested in our company and solutions, please make contact with us by sending us emails or call us straight away. To be able to know our solutions and enterprise. ar more, you'll be able to come to our factory to see it. We'll constantly welcome guests from all over the world to our firm. o build business enterprise. elations with us. Please feel absolutely free to speak to us for organization. nd we believe we will share the best trading practical experience with all our merchants.
  • The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!
    5 Stars By Jerry from Casablanca - 2018.06.30 17:29
    Production management mechanism is completed, quality is guaranteed, high credibility and service let the cooperation is easy, perfect!
    5 Stars By Colin Hazel from Wellington - 2017.06.16 18:23

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