E-Z LOK - 319-5 E-Z Lok Externally Threaded Insert, C12L14 Carbon Steel, Meets AISI 12L14, 5/16"-18 Internal Threads, 7/16"-14 External Threads, 0.437" Length, Made in US (Pack of 10) sold2026 inserts with Tin-coated are made

inserts with Tin-coated are made of carbide

The reading system usually uses differential mode to compare two different waveforms

Thickness in middle at threads:

Good for deburring

5/16 -Inch diameter by 4-Inch length

E-Z LOK - 319-5 E-Z Lok Externally Threaded Insert, C12L14 Carbon Steel, Meets AISI 12L14, 5/16"-18 Internal Threads, 7/16"-14 External Threads, 0.437" Length, Made in US (Pack of 10) sold2026 inserts with Tin-coated are madeE Z LOK 319 5 E Z Lok Externally Threaded Insert, C12L14 Carbon Steel, Meets AISI 12L14, 5 16" 18 Internal Threads, 7 16" 14 External Threads, 0. 437" Length, Made in US (Pack of 10) E Z LOK threaded inserts for metal provide an easy to use solution for repairing or reinforcing threaded holes in metal. Ideal for use in metals like aluminum and cast iron, E Z LOK threaded inserts are screw machined out of solid steel for greater strength and superior