SPIROL has introduced a new series of molded-in inserts for plastic assemblies. The rugged design of the Series 63 through-hole inserts and Series 65 blind-end inserts consists of multiple bands of helical knurls to maximize torque resistance, balanced with radial undercuts to achieve high pull-out force.(…)
via Five Things: Assembly Fasteners | 2020-06-18 | ASSEMBLY.