← The LEGO Parts Guide › 11. Technic › Brick

1×2 Technic Brick (Part 3700)

1976-2025CURRENT

Custom LEGO part image © 2025 Tom Alphin / Brick Architect.

External Links

LEGO parts are described differently on other websites and may use different part numbers.

LEGO Pick a Brick:
3700 TECHNIC BRICK 1X2, Ø4.9
Bricklink:
3700 Technic, Brick 1 x 2 with Hole
3700b Technic, Brick 1 x 2 with Hole Type II
Rebrickable:
3700 Technic Brick 1 x 2 [1 Pin Hole]
3700b Technic Brick 1 x 2 with Hole Type II
Brickset:
3700 TECHNIC BRICK 1X2, Ø4.9
LDraw:
3700 Technic Brick 1 x 2 with Hole
 CURRENTALL YEARS
OVERALL RANK
-1
77RANK
48RANK
# PIECES
3431RANK: 80
14073RANK: 56
# SETS
719RANK: 65
2874RANK: 39
# COLORS
22RANK: 136
31RANK: 119

Ranking based on buying one copy of every LEGO set, counting the number of sets containing each part, then sorting by part and color.

Overall Rank is a weighted score combining the number of parts, sets, and colors produced.

Current ranking based on sets released between 2020-2024. (2025 not included because too few sets have been released and inventoried at this time.)

Printable LEGO Brick Label

1×2 Technic
Brick
3700
.LBX

Requires a compatible Brother Label Printer — learn more at brickarchitect.com/labels.

A label for this part is included in the legacy LEGO Brick Labels collection.

Date Added: 2024-02-21 12:00:00

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This script last updated on January 14 2025 10:17 PM (PST).

This guide uses external data from Rebrickable, BrickLink, Brickset, and LDraw.