3557-2 http://www.keyelco.com/product-pdf.cfm?p=296 THM 2 in 1 Auto Blade Holder P/N 3557-2 Keystone Electronics 3557-2 534-3557-2 https://www.mouser.co.uk/ProductDetail/Keystone-Electronics/3557-2?qs=cxy41lVAGV%2FfbyASjpXK1g%3D%3D 3557-2 https://www.arrow.com/en/products/3557-2/keystone-electronics?region=europe

Test Points/Test Rings 5019 CONN-SMD_5019 LCSC Part Number: C238131 JLCPCB Part Class: Extended Part Manufactured by Keystone

Test Points/Test Rings 5002 TEST-TH_BD2.54-P1.39 LCSC Part Number: C238123 JLCPCB Part Class: Extended Part Manufactured by Keystone