Embedded Files
An Ss35 or Dhs35 screw spike with a Uls7 flat washer is a type of railway fastening system used to secure rails to sleepers, typically concrete sleepers, by screwing them into pre-drilled holes, often in conjunction with plastic dowels. The "Ss35" or "Dhs35" refers to the screw spike's grade or type, indicating its material and strength. The "Uls7" is the flat washer, which helps to distribute the load and secure the fastening assembly, preventing excessive pressure on the sleeper and reducing the risk of loosening.
The Ss35 screw spike( with Uls7 flat washer) is a type of threaded fastener specifically designed for rail track applications. It consists of a high-strength steel body with a square or hexagonal head for easy installation and removal. The spike is manufactured to meet stringent industry standards, ensuring reliable performance and durability under heavy loads and varying environmental conditions.
Dhs35 Screw Spike( with Uls7 flat washer) is also called Dhs35 rail screw or Dhs35 sleeper screw, it is the fasteners of W14 or W14R Rail Fastening System. Similar to Ss35 screw spike,it consists of a high-strength steel body with a conicalhead for installation and removal.
Breakdown of the Components:
Screw Spike (Ss35/Dhs35): This is the main fastener, a large metal screw designed to be driven into the tie sleeper (railway tie) to hold the rail in place. The Ss35 or Dhs35 designation indicates its material grade and specifications for use in concrete or wooden sleepers.
Uls7 Flat Washer: The Uls7 is a flat washer designed to fit the screw spike. Its purpose is to provide a larger bearing surface for the screw head, which helps to:
Distribute the Load: It spreads the pressure exerted by the screw over a wider area of the tie plate, protecting the underlying material.
Prevent Loosening: By increasing the contact area, it helps to secure the joint and resist vibrations that can cause loosening over time.
Facilitate Installation: The washer ensures proper seating of the screw, which is crucial for the stability of the rail.
Function in the Rail System:
The entire assembly acts as a fastener for railway tracks. The screw spike, along with the Uls7 washer and often a plastic dowel, is used to fix the rail base plate to the sleeper, creating a secure and stable track. This is a key component in various rail fastening systems, such as the W14 or W14R systems used with concrete sleepers.
The main difference is that the Ss35 screw spike is designed for wooden sleepers and is a generic type of screw spike, whereas the Dhs35 screw spike is a specific type of screw spike designed for concrete sleepers, fitting into a plastic dowel and being part of a complete rail fastening system. The Dhs35 features a self-drilling, conical head for installation into concrete, eliminating the need for pre-drilling.
Meanwhile, Ss35 screw spike and Dhs35 screw spike are different in the shape of the head. Ss35 screw spike consists of a high-strength steel body with a square or hexagonal head for easy installation and removal.The Dhs35 screw spike has a circular point shape(Conical) . This ensures it is suitable for different types of tracks and field events.In a word, Ss35 Screw Spike has a square head and the other has a tapered head.
Kunshan Signum Machinery Technology Co.,Ltd is able to supply Ss35 screw spikes and Dhs35 screw spikes with Uls7 flat washers according to clients’ requirements or drawings with competitive price.
CALL US NOW
Direct Line:+86 512 50353196
Whatsapp:+86 158 6266 4803
Email: admin@rail-fastening.com
Address: 120 Tongjing Road, Lujia Town, Kunshan, Jiangsu 215331, China
Report abuse