Technic Beam 1 x 2 Thick

43857

Technic Beams

Appears in 422 official sets

Catalog rarity

Common

Used in 422 official sets — a staple element in many builds. Available in 17 catalog colors.

Based on official set inventories in our catalog — not market price or production volume.

Best sets to source this part

Smallest official sets that include this element — useful when you only need one piece, not the whole theme.

Technic Beam 1 x 2 Thick (part 43857) is a Technic Beams used in 422 official LEGO sets. Scan or search to authenticate loose parts and check market value. Open the parent-set list to see which themes and years used this mold — essential when a common shape appears in a rare color or print.

→ Category: Technic Beams
→ Appears in 422 official sets
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Market value

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Color variants

Black Red Blue Yellow Copper Light Gray Brown Reddish Brown Light Bluish Gray Pearl Dark Gray White Orange Lime Dark Bluish Gray Bright Green Dark Azure Yellowish Green

Sets containing this part

577 sets · page 4 of 25