Single-hole lead-seal screw selection for meter covers depends on documented hole orientation and wire-exit inputs, not on assuming every seal screw routes the same way.
Identify the meter-cover revision that shows the single-hole seal feature, the intended wire exit direction, and the approval owner. The single-hole product route can start a conversation; it does not prove that a prior seal screw matches the next cover.
This selection-input article stays on single-hole geometry and does not reopen double-versus-four-hole routing comparisons published elsewhere.
Capture hole orientation, wire exit, driver access, and inspection point as quote fields.
| Selection input | What to record | Send with quote |
|---|---|---|
| Meter-cover revision | Drawing controlling the single-hole seal screw | Yes |
| Hole orientation | Direction the seal hole faces relative to the cover | Yes |
| Wire exit path | Intended sealing-wire departure once the screw is seated | Yes |
| Driver access | Tool path for installing the single-hole head | Yes |
| Inspection point | Where seal integrity is visually checked after install | Yes |
Do not invent sealing performance, material grade, or lead-time claims for empty cells.
A sample can show hole facing and head envelope under one cover condition. Photograph the hole relative to the cover edge, mark it to the revision, and list unverified wire paths.
Escalate mismatches instead of silently adopting the sample as the specification.
Send every supplier the same revision, selection fields, quantities, destination, and open points. If wire-exit direction is still open, label it rather than inviting competing assumptions.
Attach alternatives to the selection question they answer.
Important: Do not release a purchase description for single-hole lead seal screw selection when the controlling drawing, interface, or approval owner is still open; keep misfit risk visible in the RFQ. — Source: ISO standards catalogue.
This guide does not prove sealing integrity, tamper resistance, torque capacity, corrosion behavior, certification, or lifecycle. Those outcomes need product-specific evidence and the validation chosen by the system owner.
Fit Boundary: pause when hole orientation, wire exit, or approval ownership is unclear. Resolve selection inputs before recommending the product route.
After inputs are ready, use the TNHO single-hole lead seal tamper-proof screws for electric meters. Navigation confirms a related single-hole lead-seal meter screw route; it does not replace the cover drawing.
Send with quote / RFQ bullets:
– Cover revision and hole-orientation note
– Wire-exit path and driver access
– Inspection point and open questions
– Quantities and destination
Send the controlled drawing and RFQ inputs. For single-hole selection navigation, open TNHO products then continue with Electrical Fasteners: Some Basic Information.
Confirm cover revision, hole orientation, wire exit, and approval owner.
No. This article stays on single-hole selection inputs only.
No. Selection must follow the current controlled drawing.
No. Performance needs project-specific evidence.
Pause when hole orientation or wire exit is undefined.
Use the verified single-hole product route with the selection package.
TNHO 
