CT 610-0048 — copper-alloy split bolt connector for 4 AWG through 8 AWG solid copper, minimum tap 16 AWG beside a full-size run. Direct cross for Burndy SERVIT® KS20, ILSCO IK-4N, and Blackburn 4H. Part No. 610-0048 Equal main & tap 4 AWG SOL – 8 AWG SOL Cu Min. tap with max. main 16 AWG Material High-strength copper alloy body, bolt and pressure bar Rating 600 V, 90°C; UL 486A/B and UL 467 class; direct burial in earth or concrete Torque (max. conductors) 165 in-lb — follow connector marking Weight / HS 0.25 lb / 8536.90.4000 Cross-reference Manufacturer Part No. Published range Burndy SERVIT® KS20 8 STR–4 SOL, tap 14 ILSCO IK-4N (IK-4) 4 SOL–8 SOL, tap 16 Blackburn / ABB 4H 4 SOL–8 SOL, tap 14 NSI N-4* max-size naming; verify range Cross-references identify copper-alloy split bolts of equivalent published range; dual-rated Cu/Al bodies (KSU, SK, HPS) are a different class. *Pattern-matched; confirm on datasheet.Where it's used #4 GEC and bonding jumper taps at services up to 200 A Equipment grounding taps in accessible pull boxes and troughs Solar and generator bonding to grounding electrode systems How to installStrip, wire-brush bright, seat the run in the bolt saddle with the tap alongside, hand-run the nut, torque to the marked value, then insulate to the conductor's rating per NEC 110.14(B) (rubber tape + vinyl, or a snap-on split bolt cover). Not permitted for buried or encased grounding electrode conductor splices (NEC 250.64(C)) — use irreversible compression there. Full guide: Split Bolt Connectors: Sizing, Torque, Taping, and the NEC; brand chart: Split Bolt Cross-Reference.Stocked — same-day shipping on orders by 2 PM PT. Volume and trade pricing through the trade desk.