Isolantite Isolantite Type 348 6" x 1", Cylindrical Electrical Standoff Insulator - W22016 Approximate dimensions: 6" long by 1" diameter. 1/4-20 tap is approximately 5/8" deep. Side markings: NL523W04-048. Additional product information from Isolantite: https://isolantite... MSRP: Was: Now: $4.19 Add to Cart