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Inside-Cabinet 5 mm Shelf Pin Keeper
A 140 mm L-shaped keeper you screw inside a cabinet or bookcase. It holds 20 standard 5 mm shelf pins upright in 5.4 mm wells, and a centre well holds spare cam bolts and screws, so the hardware stays with the furniture through a move. It mounts through two 4.5 mm holes that take #6 (3.5 mm) or #8 (4.2 mm) wood screws. The ledge is 26 mm deep and the back plate is 40 mm tall.
Shelf-Pin Mount 1/2 in EMT Rod Cup
This rod cup lets you add a hanging rail to a wardrobe or cabinet without drilling. It pins into the shelf-pin holes the cabinet already has. A 18.4 mm U-cup takes 1/2 in EMT conduit (17.9 mm OD), and two 5 mm steel pins or dowels, each 16 mm long, go through the 6 mm plate into the side panel. The lower hole is round. The upper hole is a slot that fits hole spacings of 1 in, 1-1/4 in and 32 mm. There is also a 4.5 mm hole for a #6 screw if the cabinet has no shelf-pin holes. Print two and cut the EMT to the inside width of the cabinet minus 13 mm.
Screw-Lock 5 mm Shelf Support Pin Set
A snap-off sprue of four gusseted L-bracket shelf supports for kitchen cabinets with standard 5 mm shelf-pin holes. Each one has a 9 mm octagonal pin measuring 4.6 mm across the flats and 5 mm across the corners, plus an 18 x 10 mm shelf seat with a 4 mm through-hole: drive a #6 (3.5 mm) screw up into the shelf so it can't tip or slide off. The pieces print flat, so shelf load goes along the layers, not across them.
Flat-Pack Furniture Hardware Keeper
A 150 x 90 x 22 mm tray that keeps a flat-pack furniture kit together through a move. It has three scoop bays for cam locks, bolts and hex keys, a rack of seven 8.6 mm sockets that hold 8 mm dowels upright, and a rack of nine 5.4 mm sockets for standard 5 mm shelf pins. Two 4.5 mm holes in the floor take #6 or M4 screws, so you can fix it inside the wardrobe or drawer it belongs to.
Shelf Pin Hole Size Gauge Paddle
A 110 x 30 mm pocket gauge for older bookcases and cabinets. It has seven chamfered test pegs (4, 5, 6, 6.35 (1/4 in), 7, 8 and 9 mm) that you push into a shelf-pin hole to find its real size. Below them is a matching row of through-holes (printed 0.2 mm over nominal) for checking a spare pin before you buy or print replacements. A V-notch on the edge marks the 1/4 in peg so you can tell it apart from the 6 mm one, and a 6 mm hole lets you hang it on a pegboard.
Shelf Pin Ledger Support Rail
A 160 mm ledger rail that plugs into five standard 5 mm shelf-pin holes on 32 mm System-32 pitch and spreads a sagging shelf's load along the whole cabinet side instead of four little pins. The 14 mm deep ledge carries the shelf, gussets under every pin put the load in the XY print plane, and M4 clearance holes let you screw through the web into the cabinet side (rescue for blown-out pin holes) or up into the shelf itself.
32 mm Shelf Pin Drilling Jig
A 148 mm self-registering drilling jig for the European 32 mm shelf-pin system: five 5.4 mm guide bores on exact 32 mm centres, 13 mm deep for bit alignment, held 37 mm from the panel edge by an 8 mm deep hook fence. Leapfrog it down a cabinet side by dropping a 5 mm shelf pin through the end bore into the last hole you drilled; two 4.5 mm M4 holes let you screw it to a backer board or wooden fence extension.