MTTOSElKO Outline precision require Spring Pins made of steel strip coiled 2 and 1/4 turns in a spiral shape. Compared to slotted spring pins, automation is easier because Coiled Spring Pins can withstand loads from any direction and there is no docking between the pins. Compared to parallel pins, Coiled Spring Pins themselves have elasticity, making them more resistant to vibration and shock, and they also have the advantages of "low for the pilot hole” and "light weight". They are mainly used in the automotive industry. Comparison with slotted spring pin • No directions in shear strength • No docking between the pins Comparison with parallel pins • High elasticity to resist vibration and shock• Low precision required for the pilot hole • Light weight Type Standard Duty type Coiled Spring Pin is highly versatile. It can be used for press fitting into holes in base materials such as soft iron, cast iron, brass, and aluminum. Cross-sectional area is approximately 6096 that of parallel pins. Light Duty type For press fitting into holes in soft or brittle base materials such as plastic. Cross-sectional area is approximately 4596 that of a parallel pin. Heavy Duty type For press fitting when the shear strength is insufficient for general type and the base material is hard. Cross-sectional area is about 7096 that of parallel pins. Materials and Surface Treatment carbon steel Made of SAE 1070. Temper hardening is applied after molding. Surface treatment is temper color treatment. (02 or larger) stainless steel ■■■ Made of SUS304. When measuring the D dimension with a micrometer, avoid the taper at the end of the winding. Double shear strengths are values obtained under conditions in independent tests and are not guaranteed. Applicable hole sizes are provided for reference only and should be set by the customer according to the intended use. Standard Coiled Spring Pin Dimensions Standard Coiled Spring Pin L Dimensions NITTOSEIKO CO.,LTD. Fastener Division Global Sales Section 1-6-4, Honjyo-nishi, Higashiosaka city, Osaka, 578-0965, Japan E-mail : [email protected]