History: This Hickok 752 has been my trusty backup tube tester for the last two years. It works fantastic, and it rarely get used. But in the time I have had it I have ran 5AR4/6V6/6L6/6SN7/12AU7/12AX7/45/50s all thru it just to name a few.
Nylon Acorn Nut, Off-White, Meets UL 94V2, Class 6H 1/4"-20 Threads, 0.425" Width Across Flats (Pack of 100) The off-white nylon 6/6 hex bolt has a hex head with a slotted drive. Nylon 6/6 provides resistance to abrasion, corrosion, and many chemicals and solvents. The material is a strong yet lightweight plastic and is nonconductive.
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