Spring Plunger Spring Plunger SHORT TYPE SMALL TYPE L Material Hardness Surface Treatment SPSL SPSH Material Hardness Surface Treatment : SCM435 : 36 to 40 HRC : Black chromating Galvanizing : Nose SK4 Thread SCM435 : 36 to 40 HRC : Black chromating Galvanizing SPL (Light Load Type) SPH (Heavy Load Type) SPSL (Light Load Type) SPSH (Heavy Load Type) See page 46 for plunger wrench. Catalog No. See page 46 for plunger wrench. •Drilling plug to access tap is not required. •Plungers can be easily removed with a dowel pin removing tool. Dowel Pin Removing Tool Copyright © Sankyo Oilless Industry, Inc. All Rights Reserved. Copyright © Sankyo Oilless Industry, Inc. All Rights Reserved.