The shelf support peg is made of steel and clear PVC, which is durable and sturdy, not easy to wear and tear, so it has a long lifespan. The shelf support pins can be used to support cabinet, bookcase, furniture, closet, cupboard, wardrobe, and pantry shelving with 3MM shelf holes.
eBay
For shelf support strip with apertures at 25 mm intervals. tested to DIN EN 16337:2013-08 with 1.7 kg plate for impact test, i.e. 50 kg load bearing capacity when using 4 shelf supports. Load bearing capacity.
eBay
Description:Made of metal material, used for a long time.This Shelf Support Pin is used to provide support for wooden and glass shelf, reliable and practical.Specification:Product Name: Shelf Support PinColor: Silver Tone; Material: MetalTotal Size: 21mm x 8mm / 0.83" x 0.3" (H*D)Package Content: 20 x Shelf Support Pins.
eBay
5mm shelf support pins top quality Hafele product Nickel Silver finish pack of 12 80kg load bearing capacity when used correctly designed to plug into a 5mm hole.
eBay
You will probably require around 4 Supports For an average length of shelf the more supports you add the more weight the shelf will be able to Support. Simply plug into a drilled hole or make your own hole to the size you required.
eBay
IKEA Part 131372. If your Billy shelves have 3mm holes you need this part 131372.
eBay
PUSH IN SHELF SUPPORT PEGS. This is a complete shelf peg in white plastic resin. For supporting carcass shelves in furniture. Easy to Install - Mark where you want the shelf, drill a 5 mm hole at a depth of about 6mm.
eBay
SHELVING SUPPORT PEGS. Nickel Pegs. For holes approx. Larger orders (in excess of 2 kg) may be sent via other carriers. We reserve the right to use any carrier we choose, at our sole discrestion, without notice.
eBay