Bolt Generator With Uvs

Henrik Uhrmann in Procedural Generators

Fastener Kit
GEOMETRY NODES ASSET FOR BLENDER

Fastener Kit

ISO metric bolts, screws, washers and nuts as Geometry Nodes modifiers. Snap them onto any surface and Bolt Holes drills the matching hole. Measured UVs, a realistic Cycles material, linked bolts.

ISO M3 - M36Snap + drillMeasured UVsCycles materialNo add-on
12
ISO sizes M3 - M36
6
head types
4
drives
4
end types
3
hole types
9
ready bolt presets
0
add-ons needed
WORKFLOW

Bolted in under a minute

Snap a bolt onto the surface, Bolt Holes cuts the hole, washers and nut come with it.

Bolts snapped onto a tube, holes drilled
SNAP + DRILL

Snap onto any surface, the hole is cut

The bolt origin sits on the bearing face, the shaft along -Z: face snapping with Align Rotation to Target puts it on any surface, perfectly aligned to the normal, even on curved parts. Bolt Holes on the part drills every hole of a bolt or a whole collection. Move a bolt and its hole follows.

Face snapAlign RotationBolt HolesBolts collection
Cutaway: hole changes with the head
BOLT HOLES

Every hole fits its bolt

Clearance hole (ISO 273 medium) down to the bolt tip, a counterbore for heads sunk with Origin = Head Top, a 90° countersink for flush countersunk heads. Clean Boolean: the part keeps its attributes, the hole walls get the part's material and box UVs.

Hole DiameterDepthCountersinkCounterboreShow Cutters
One bolt, many options
OPTIONS

Every bolt you need

Size, head, drive and end, partial or full thread, a fine pitch, thread start, washers and nut: one modifier, all ISO sized. Length 0 = automatic from the grip, rounded to the ISO length series.

SizeHeadDriveEndThreadGrip
Built-in washers and nut
BUILT-IN PARTS

Washers and nut in one click

Top Washer, Bottom Washer and Nut right in the Bolt modifier, or as Washer / Nut objects of their own that read one bolt or a whole collection (ISO 7089, ISO 4032).

Top WasherBottom WasherNutWasher / Nut objects
Pitch and thread start
THREAD

Pitch, thread start, real thread

Modelled ISO thread with a clean mesh. ISO coarse pitch by default, any fine pitch you need, and the thread starts where you want. Or a plain shaft for bolts far away.

PitchThread StartThread LengthThread Detail
Linked bolts follow the master
LINK SETTINGS

Change one bolt, all follow

Put Link Settings above a bolt and pick a master: every value left at 0 / Linked comes from it. Change the master size once and every linked bolt, washer and nut follows. Values you set override it for one bolt only.

SourcePriority0 / Linked = inherit
Head types
HEADS

Six heads, four ends

Hex, socket cap, countersunk, carriage, hex washer or none (threaded rod); ends chamfer, flat, dog point or drill point.

HeadEnd
Drives
DRIVES

Hex socket, Torx, Phillips, slot

Real recesses cut into the head, with a clean mesh and even UVs.

Drive
Bolted plates
DETAILS

Made like the real thing

Stills in Cycles with the included material, animations with the UV grid.

Cutaway
Cutaway
Through bolt with washers and nut, sunk socket cap, flush countersunk screw.
Tube wall
Curved parts
Every bolt along its own surface normal, every hole drilled.
UV grid
Measured UVs
Even, metric UVs on heads, recesses, thread, washers and nuts.
Bolt options
24 variants
Sizes, heads, drives, ends, pitch, thread start, built-in parts.
All types
Every type
Heads, drives, ends and a threaded rod, all linked to one master.
Thread detail
Simple Cycles material
Black-oxide head, turned steel, edge highlights: ready for close-ups.
Bolt set
Bolt set
Bolt, two washers and a nut as one collection asset.
Presets
9 presets
Ready bolts in the Asset Browser, drag and drop.
SETUP

Ready in four steps

01
Drag a bolt
From the Asset Browser: a preset, the bolt set, or the Bolt modifier on any object.
02
Snap it
Face snapping, Snap With Active, Align Rotation to Target: on the surface, along the normal.
03
Drill
Bolt Holes on the part, pick the bolt or the bolt collection: every hole is cut.
04
Washers, nut, links
Built in (Parts panel) or Washer / Nut objects; Link Settings for many bolts.
REFERENCE

All parameters

BOLT
Size  ISO M3 - M36
Head, Drive, End  types
Grip, Length  clamp length, auto length
Origin  bearing face or head top (flush)
Thread, Thread Length, Thread Start  where the thread is
Pitch  0 = ISO coarse, else fine
Parts  top washer, bottom washer, nut
Thread Detail, Segments  modelled or plain, resolution
BOLT HOLES
Bolt, Bolts  one bolt or a collection
Hole Diameter, Depth  0 = ISO 273 / to the tip
Countersink, Counterbore  for countersunk / sunk heads
Hole Material, UV Scale  hole walls
Show Cutters  check the placement
WASHER
Bolt, Bolts  one bolt or a collection
Side  under the head or at the nut
Diameters, Thickness  0 = from the bolt (ISO 7089)
NUT
Bolt, Bolts  one bolt or a collection
Across Flats, Height  0 = from the bolt (ISO 4032)
Offset  along the bolt axis
LINK SETTINGS
Source  the master object
Priority  Source Wins / Existing Wins
0 / Linked  inherit, anything else overrides
OUTPUT
UVMap  measured, metric UVs
mask_bolt_*, mask_washer, mask_nut  part masks for shaders
Material  Steel Bolt (Cycles) when empty
INCLUDED
Bolt, Washer, Nut, Bolt Holes and Link Settings modifiers (assets with catalog file)
Steel Bolt material for Cycles (black-oxide head, turned steel, rubber seal)
9 ready bolt presets and a bolt set, all with Asset Browser previews
Demo scene: linked bolts, every type, presets, bolts snapped onto a part with Bolt Holes
Quick start guide
REQUIREMENTS
Blender 5.2 or newer
No add-on, pure Geometry Nodes
Personal and commercial use
Made by Henrik Uhrmann. Concept, idea and the first hand-built prototype by Henrik Uhrmann: the feature set, the linked-bolt principle, the workflow and the Steel Bolt material. Parts of the node setup were built with the help of an AI coding assistant, then reviewed, tested and refined by hand in Blender.
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Details
Published about 8 hours ago
Blender Version 5.2
Render Engine Used Cycles, Eevee
License Royalty Free

Henrik Uhrmann

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