One Way Serrated Spring Insert Clamp (SFS)

Jolly One Way Serrated Spring Insert Worm Drive clamp is designed to suit Medium duty applications where thermal fluctuation is a key concern. Spring action of Bridge & Spring construction accommodate the thermal fluctuations & prevents loosening or loss of clamp load due to increase/ decrease in joint diameter

Specification Sheet


  1. Jolly One Way Serrated Spring Insert One-Way Serrated Clamp is designed as per German standard Din 3017-01 for Medium duty applications where fluctuation in hose diameter due to thermal variation is key concern.
  2. Jolly constant tension Serrated clamp works on principle of Worm Gear action where gearing action between cleanly formed Serrations & thread of Hex Head Screw enables tightening or loosening of clamp on the application.
  3. Spring Action of Bridge & Spring construction ensures automatic re-tensioning effect on hose to avoid seepage.
  4. Jolly One Way Serrated Clamp contains threads on the outer surface of the band & smooth inner surface to ensure no damage to hose due to hose biting which makes this clamp suitable for soft nitrile hoses.
  5. Engineered with one piece housing assembly, Jolly Spring Insert clamp is available in a wide variety of diameter range as well as can be customized as per customer requirement.

Material Options

  • Jolly One Way Serrated Spring Insert Worm Drive Clamp series products are made with material grade of AISI or equivalent global standards to provide high quality & consistency in performance.
  • Jolly Spring Insert One Way Serrated Clamps are available in SS430 grade as well as in Plated carbon steel with the option of Hexavalent & Trivalent .
  • Zinc plating as per Industry & Global Export Standards whereas the Spring & bridge are generally made up of SS301 material.

Industries and Applications

Jolly One Way Serrated Spring Insert Serrated Worm Drive Clamps serve in a wide variety of industries while meeting industry specified demand & keeping edge over Quality product supplies. Our products commonly used industries and applications such as:

What Makes Jolly Different?

Prospect Engineering Works is an IATF 16949, ISO 45001 and ISO 14001 certified, RoHS compliant Indian manufacturing company which is one-stop for all your Clamping requirements. We are over 5 decade-old, young company catering JOLLY brand clamping solution to over 80% of OEM and Aftermarket in India and many institutional customers globally. We are a proud Indian clamp manufacturer who specializes in customized clamps and believe in lowest lead time.


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