Open Solid > Hole Series > Connection Library and Batch Change.
The Hole Series dialog includes a Connection recipe dropdown with twelve starting recipes: metric tapped fixtures, through bolts, a captive nut and a flush panel; UNC/UNF examples; and a sourced PEM installation hole. Select a recipe, then select new hole centers, direction and target bodies. Review the visible dimensions before creating the connection. These are editable design starting points, not load-rated joint designs.
To save your own recipe, choose Save connection recipe, select one managed Hole Series and enter a unique name. Its hole and joint options are saved. Recipes never contain model entity tokens, placements, document IDs or source-file paths.
Import recipes and Export recipes exchange a versioned JSON library. Import validates the whole file before replacing the personal library. A duplicate recipe name is rejected. The personal file is %APPDATA%/VanThanBK/AssemblyHoleSeries/connection_recipes.json; if it does not exist, the twelve bundled recipes are available. Library changes do not modify existing geometry. Recipes currently apply to local connections; linked-file creation retains its existing source-file job workflow.
Choose Batch change size and use Current size to show All sizes or one thread size present in the design. Each Managed connections row shows the ID, name, current size, head/tail treatments and local or linked-file scope. Select individual rows or use Select matching to check all displayed rows; Clear selection unchecks them. Changing the current-size filter or action clears the previous selection, including records that would become hidden.
Choose New size and review the preview: how many records match the filter, how many are selected, how many will change, and why any selected record is skipped. Changing the new size keeps the selection and recalculates the preview. No geometry changes until OK. Only the selected applicable connections change.
For M4 to M5, standard hole/recess/nut-pocket dimensions update to M5. Dimensions that differ from the previous defaults remain overrides. An override that would leave the hole too small is skipped and needs individual review.
The batch does not edit arbitrary Fusion holes, unmanaged purchased parts or distributed source-file connections. Edit those distributed connections using Edit Assembly Feature, which preserves the existing saved source-file job and recovery checks. Hybrid parent design and licensing checks still apply.
Each local connection has a recovery snapshot stored in the design before the first mutation. A downstream failure restores that connection's hole and linked stacks before continuing. If restoration fails or cannot be authorized, the batch stops and retains the snapshot. Choose Recover interrupted change after resolving the reported issue. Other modeling commands block while a connection recovery is pending. Normal document save/recovery controls whether unsaved work survives a Fusion/application crash; this is not a disk/cloud transaction guarantee. Downstream user-created face references may still need repair after any replacement geometry, as with existing Edit/Update.
Fourteen thread combinations are available: #6-32 UNC/#6-40 UNF, #8-32 UNC/ #8-36 UNF, #10-24 UNC/#10-32 UNF, 1/4-20 UNC/1/4-28 UNF, 5/16-18 UNC/ 5/16-24 UNF, 3/8-16 UNC/3/8-24 UNF and 1/2-13 UNC/1/2-20 UNF.
Inch holes take socket head counterbores and 82 degree countersinks; see Hole dimensions and sources. An inch countersink is 82 degrees at the flat head's theoretical sharp diameter. Native tapped holes select the exact Fusion Unified thread designation and internal 2B class; UNC and UNF are never selected by nearest diameter alone.
The catalogue stores dimensions in millimeters using exactly 25.4 mm per inch. Head and nut dimensions use published envelope maxima where available; socket depth uses the manufacturer's minimum key engagement as a conservative reference. The small US washer rows are nominal supplier dimensions. Models do not include every chamfer, fillet, tolerance or manufacturing detail.
Sources checked September 8, 2026:
Camcar/Stanley Socket Screw Technical Manual, revision 2024, Table I-3: socket-head envelopes and minimum key engagement.
Westfield 1/4 UNC Unbrako socket screw: cross-check of 1/4 head, drive and depth; example stock lengths.
Westfield ASME B18.2.2 nut reference: 1/4, 5/16, 3/8 and 1/2 nut envelopes. UNC/UNF pitch changes do not imply a different hex-body envelope; verify the purchased thread.
Westfield BS3410 Table 3 Light washers: washer ID/OD/thickness for the four fractional sizes.
Delta Fastener machine hex nuts: #6, #8 and #10 UNC/UNF nut envelopes.
Albany County Fasteners nut and washer reference: US flat-washer nominal dimensions for #6, #8 and #10.
Clearance presets are editable Assembly Hole Series design allowances (nominal diameter plus 0.2/0.4/0.8 mm for Close/Normal/Loose), not certified inch-fit tables. Recesses also include explicit design clearance. Preferred screw lengths are a configured selection list, not a guarantee that every supplier stocks every size/length/material. The nut's simple bore uses a nominal diameter-minus-pitch reference; native tapped-hole dimensions come from Fusion's thread data. None of these values constitute a tap-drill process recommendation, torque, pull-out, fatigue or joint-strength calculation.
Use Map supplier SKU and paste a part number from the bolt list (the hsf_part_number column of its CSV), then enter the supplier, actual SKU and purchasing description (include material, finish or grade as needed). CSV and printable HTML bolt lists use this local mapping. The add-in's part number is not a manufacturer part number. A mapping adds purchasing metadata; it does not certify that modified geometry matches a SKU.
Export company catalogue writes the effective dimensions, labels and SKU mappings. Import company catalogue validates its schema, units, supported sizes and dimensions before replacing the personal override file. Existing models change only on their next explicit Create/Edit/Update. Company dimensions are authoritative, so invalid existing data stops a rebuild instead of silently falling back. Keep the catalogue version and supplier drawings with your project.
Tail insert creates the mounting hole of a supplier insert in the last target only; preceding targets keep the normal clearance of the insert's thread. The shipped records (data/insert_installations.json, read 2026-10-25 unless noted) are:
The add-in checks the local target thickness against the minimum sheet (and a rivet nut's grip range) and a drilling direction normal to the sheet. Edge distance, material/hardness, tolerances and installation process require user verification against the current supplier drawing.
This option produces a local, simple mounting hole with supplier metadata; it does not place/deform an insert or predict its retention. It requires the insert's thread size, the head on the surface and Clearance only, and cannot be batch-changed to another screw size. The bolt list does not count inserts; order and verify them separately.