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Fasteners_Workbench.md

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Fasteners Workbench icon Fasteners Workbench

Introduction

The Fasteners Workbench is an external workbench that can add various fasteners to parts.


The optional single toolbar layout of the workbench.
Fasteners with metric dimensions have orange icons.
Fasteners with inch dimensions have green icons.

Installation

  1. Install the Fasteners Workbench via the Addon Manager. For manual installation see Installing more workbenches.
  2. Restart FreeCAD.
  3. Select the Fasteners Workbench from the Workbench dropdown list.
  4. Optionally change the toolbar and menu layout:

    1. Go to: Edit → Preferences... → Fasteners → General settings.

    2. Select one of the available Toolbar screw icons grouping options:

      **None**

: All fasteners appear in a single toolbar. To see all available buttons use the **>>** button to expand it.

      • Separate toolbars

        : Fasteners are grouped in several toolbars. This is the default layout.

      • Dropdown buttons

        : Fasteners are grouped in toolbars with flyouts.

    3. Optionally uncheck one or more Fastener standards shown in toolbars options. Unchecked standards are still available from the menu.

    4. Restart FreeCAD.

Usage

Fasteners can be attached or unattached. Attached fasteners have a base Object, a circular edge, and their Placement is dynamically linked to that object. The Fasteners Move command can be used to attach or detach a fastener.

Unattached fasteners

  1. Select the desired fastener by clicking its button or by picking it from the menu.
  2. A fastener is created at the origin.
  3. Optionally change the dimensions and other properties of the fastener:
    1. Select the fastener.
    2. Go to the Data tab of the Property editor.
    3. Change the required properties.

Attached fasteners


On the left two selected circular edges. On the right the attached fasteners.

  1. Specify if the selected holes are tap holes or pass holes by selecting Fasteners MatchTypeInner or Fasteners MatchTypeOuter respectively (not used for countersunk screws).
  2. Select one or more circular edges and/or faces with circular edges. For countersunk screws the top edge of the chamfered hole must be selected.
  3. Select the desired fastener by clicking its button or by picking it from the menu.
  4. A fastener is attached to each of the selected circular edges.
  5. The default dimensions of each fastener depend on the radius of the circular edge it is attached to. Countersunk screws are matched by their head diameter, other fasteners are matched by their shaft diameter.
  6. Optionally change the dimensions and other properties of the fasteners. See above.
  7. Fasteners that appear upside-down can be inverted with the Fasteners Flip command or by changing their invert property.
  8. Optionally change the offset property to create space between the fasteners and the edges they are attached to.

Notes

  • To generate threads, the thread property of a fastener must be changed to True. Generating threads is costly. Recomputes take much longer if there are many fasteners with threads in a document.
  • The invert property and the offset property are ignored for unattached fasteners.

Commands

Fasteners

Fasteners with metric dimensions have orange icons. Fasteners with inch dimensions have green icons.

Self-clinching and PCB fasteners

  • Self-clinching nut.

  • Self-clinching standoff.

  • Self-clinching stud.

  • PCB standoff female/male.

  • PCB spacer female/female.

  • Heat staked insert.

Hexagon head screws and bolts

  • DIN 933 Hexagon head screw.

  • DIN 961 Hexagon head screw.

ISO 4017 Hexagon head screw. Product grades A and B.

ISO 8676 Hexagon head screw with fine pitch thread. Product grades A and B.

ISO 4014 Hexagon head bolt. Product grades A and B.

  • EN 1662 Hexagon head bolt with flange, small series.

  • EN 1665 Hexagon head bolt with flange, heavy series.

  • DIN 571 Hexagon head wood screw.

  • ASME B18.2.1.6 UNC hexagon head screw.

  • ASME B18.2.1.8 UNC hexagon head screw with flange.

Hexagon socket screws

  • ISO 4762 Hexagon socket head cap screw.

  • DIN 7984 Hexagon socket head cap screw with low head.

  • DIN 6912 Hexagon socket head cap screw with low head with center.

  • ISO 7380-1 Hexagon socket button head screw.

  • ISO 7380-2 Hexagon socket button head screw with flange.

  • ISO 10642 Hexagon socket countersunk head screw.

  • ISO 7379 Hexagon socket head shoulder screw.

  • ISO 4026 Hexagon socket set screw with flat point.

  • ISO 4027 Hexagon socket set screw with cone point.

  • ISO 4028 Hexagon socket set screw with dog point.

  • ISO 4029 Hexagon socket set screw with cup point.

  • ASME B18.3.1A UNC hexagon socket head cap screw.

  • ASME B18.3.1G UNC hexagon socket head cap screw with low head.

  • ASME B18.3.2 UNC hexagon socket countersunk head screw.

  • ASME B18.3.3A UNC hexagon socket button head screw.

  • ASME B18.3.3B UNC hexagon socket button head screw with flange.

  • ASME B18.3.4 UNC hexagon socket head shoulder screw.

  • ASME B18.3.5A UNC hexagon socket set screw with flat point.

  • ASME B18.3.5B UNC hexagon socket set screw with cone point.

  • ASME B18.3.5C UNC hexagon socket set screw with dog point.

  • ASME B18.3.5D UNC hexagon socket set screw with cup point.

Hexalobular socket head screws

  • ISO 14579 Hexalobular socket head cap screw.

  • ISO 14580 Hexalobular socket cheese head screw.

  • ISO 14582 Hexalobular socket countersunk head screw, high head.

  • ISO 14583 Hexalobular socket pan head screw.

  • ISO 14584 Hexalobular socket raised countersunk head screw.

Slotted head screws

ISO 2009 Slotted countersunk flat head screw. Product grade A.

ISO 2010 Slotted raised countersunk head screw. Product grade A.

ISO 1580 Slotted pan head screw. Product grade A.

ISO 1207 Slotted cheese head screw. Product grade A.

DIN 84 (superseded by ISO 1207) Slotted cheese head screw. Product grade A.

  • DIN 96 Slotted half round head wood screw.

  • GOST 1144-1 Slotted half round head wood screw.

  • GOST 1144-2 Slotted half round head wood screw.

  • ASME B18.6.3.1A UNC slotted countersunk flat head screw.

H cross head screws

  • DIN 967 Pan head screw with collar with cross recess.

ISO 7045 Pan head screw with cross recess. Product grade A.

ISO 7046 Countersunk flat head screw with cross recess. Product grade A.

ISO 7047 Raised countersunk head screw with cross recess. Product grade A.

  • ISO 7048 Cheese head screw with cross recess.

  • DIN 7996 Pan head wood screw with cross recess.

  • GOST 1144-3 Pan head wood screw with cross recess.

  • GOST 1144-4 Pan head wood screw with cross recess.

Other head bolts

  • DIN 603 Round head square neck bolt.

  • DIN 478 Square head bolt with collar.

  • ASME B18.2.1.1 UNC square head bolt.

  • ASME B18.5 UNC Round head square neck bolt.

Nuts

ISO 4032 Hexagon nut, style 1. Product grades A and B.

ISO 4033 Hexagon high nut, style 2. Product grades A and B.

  • ISO 4034 Hexagon nut, style 1.

ISO 4035 Hexagon thin nut chamfered, style 0. Product grades A and B.

ISO 8673 Hexagon nut with fine pitch thread, style 1. Product grades A and B.

ISO 8674 Hexagon high nut with fine pitch thread, style 2. Product grades A and B.

ISO 8675 Hexagon thin nut with fine pitch thread, style 0. Product grades A and B.

DIN 934 (superseded by ISO 4035 and ISO 8673) Hexagon thin nut chamfered. Product grades A and B.

  • EN 1661 Hexagon nut with flange.

  • DIN 917 Cap nut, low form.

  • DIN 928 Square weld nut.

  • DIN 929 Hexagon weld nut.

  • DIN 935 Hexagon castle nut.

  • DIN 6330 Hexagon nut 1.5d high.

  • DIN 6331 Hexagon with collar 1.5d high.

  • DIN 6334 Hexagon coupling nut.

  • DIN 7967 Self-locking counter nut.

  • DIN 1587 Cap nut.

  • GOST 11860-1 Cap nut.

  • DIN 315 Wing nut.

  • DIN 557 Square nut.

  • DIN 562 Square nut.

  • DIN 985 Nyloc nut.

  • DIN 1624 Tee nut.

  • ASME B18.2.2.1A UNC hexagon machine screw nut.

  • ASME B18.2.2.1B UNC square machine screw nut.

  • ASME 18.2.2.2 UNC square nut.

  • ASME B18.2.2.4A UNC hexagon nut.

  • ASME B18.2.2.4B UNC hexagon thin nut.

  • ASME 18.2.2.5 UNC hexagon castle nut.

  • ASME 18.2.2.12 UNC hexagon nut with flange.

  • ASME 18.2.2.13 UNC hexagon coupling nut.

  • ASME 18.6.9A Wing nut, type A.

  • SAE J483a 1 Low cap nut.

  • SAE J483a 2 High cap nut.

T-slot fasteners

  • DIN 508 T-slot nut.

  • GN 505 Serrated quarter-turn T-slot nut.

  • GN 505.4 Serrated T-slot bolt.

  • GN 507 T-slot nut.

Washers

ISO 7089 Plain washer, normal series. Product grade A.

ISO 7090 Plain washer chamfered, normal series. Product grade A.

ISO 7092 Plain washer, small series. Product grade A.

ISO 7093-1 Plain washer, large series. Product grade A.

ISO 7094 Plain washer, extra large series. Product grade C.

  • ISO 8738 Plain washer for clevis pins.

  • DIN 6319C Spherical washer.

  • DIN 6319D Conical seat.

  • DIN 6319G Conical seat.

  • DIN 6340 Washer for clamping devices.

  • NFE27-619 Countersunk washer.

  • ASME B18.21.1.12A UN washer, narrow series.

  • ASME B18.21.1.12B UN washer, regular series.

  • ASME B18.21.1.12C UN washer, wide series.

Retaining rings

  • DIN 471 External retaining ring.

  • DIN 472 Internal retaining ring.

  • DIN 6799 E-clip retaining ring.

Miscellaneous

  • Arbitrary length threaded rod for tapping holes.

  • Arbitrary length threaded rod for tapping holes.

  • Arbitrary length threaded tube for cutting external threads.

  • Arbitrary length threaded tube for cutting external threads.

  • Arbitrary length DIN 975 threaded rod.

  • Arbitrary length UNC threaded rod.

References

Links

⏵ documentation index > Addons > [External Command Reference](Category_External Command Reference.md) > [External Workbenches](Category_External Workbenches.md) > Fasteners > Fasteners Workbench