Graphite Nuts & Washers
Isostatic graphite nuts, washers and threaded fasteners for vacuum furnace hot zone assembly. Self-lubricating, non-metallic, and rated to 3000°C. Matched to our graphite bolt range.
Graphite Nuts and Washers complete the hot zone fastener set alongside our graphite bolts. Used wherever a metallic fastener would outgas, corrode, or contaminate the furnace atmosphere, graphite fasteners maintain vacuum integrity and thermal stability throughout the furnace's working life.
All nuts and washers are machined from fine-grained isostatic graphite — the same material grade as our bolts — ensuring matched coefficients of thermal expansion and uniform load distribution at temperature. The inherent self-lubricating property of graphite prevents galling and seizure, making repeated assembly and disassembly straightforward even after high-temperature cycles.
Standard thread forms: M6, M8, M10, M12, M16 (coarse thread). Special thread forms, flanged nuts, and thick washer profiles available on request. Supplied individually or as matched bolt-nut-washer kits.
