In hardened steel parts, the hole should be. The following is dimensional and general data for spring pins recognized as American National Standard, which are widely used in general industrial applications per. Compressed as it is installed, the pin applies continuous pressure on the sides of the hole wall. This flexibility provides an easier in ing device for ties and timbers. The double-beveled knife up n reques Per 100 ent and railroad. Available in spring steel to CS70/AISI 1070/C67, spring steel to CS70/AISI 1070/C67 Zinc & De-Embrittled and Stainless Steel A2 AISI 304. 5 & 7, Block D, Jalan Gelen J, U19/J, Megamas Business Centre, Kg Baru Sg. Buloh, Selangor Darul Ehsan, Malaysia No.