Setobrick

LEGO part 3700: Technic Brick 1 x 2 [1 Pin Hole]

Technic Bricks36 colours2,755 sets

LEGO part LEGO part 3700: Technic Brick 1 x 2 [1 Pin Hole]

Specifications

Reference3700
CategoryTechnic Bricks
MaterialABS plastic
Colours36
Sets2,755
Listed pieces13,105
First appearance1995
Latest appearance2026
Element (Black)370026
Most common colourBlack
Main themesStar Wars, City, Ninjago
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 3700, Technic Brick 1 x 2 [1 Pin Hole], belongs to the Technic Bricks category. It exists in 36 colours and appears in 2,755 sets of our database, from 1995 to 2026, for a total of 13,105 listed pieces. Its most common colour is Black.

Number 3700 identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in black, it is 370026.

Part 3700 through the years

The oldest set in our database that contains part 3700 is 6090 Royal Knight's Castle, released in 1995 in the Castle theme. It is still in use: the most recent set featuring it, 75425 Mos Eisley Cantina, dates from 2026.

Its peak year is 2025, with 195 sets containing it. The set with the most copies is 10294 Titanic: 182 copies, against an average of 4.8 per set.

It is spread across several themes, led by Star Wars (11%), City (6%) and Ninjago (6%). With 2,755 sets, it is the most widespread part in the Technic Bricks category and ranks no. 40 of 2,731 parts in our database.

Sets containing part 3700, by period

PeriodSets
1995-1999153
2000-2009474
2010-20191,040
2020-20261,088

Colours of part 3700

8 colours appear in only one set: dark purple (72166 Cubone and Gengar's Spooky Showdown), bright pink (11506 Rocking Plants), sand blue (4742 Chill Speeder), dark pink (71469 Nightmare Shark Ship), bright light blue (10349 Happy Plants), …

Colour (element ID)SetsPiecesExample sets
Black3700266362,549764356033671765
Light Bluish Gray42114405441,922753377534710305
Dark Bluish Gray42111114541,606103071030576389
White6619284 · 3700013771,408417037519210316
Red3700212951,018717727177571411
Reddish Brown4211252261897417037621875953
Yellow3700242581,020603367141176240
Tan4205107 · 370005212759417037533771043
Blue370023174638103167525210497
Light Gray370002762706090848010019
Medium Nougat619292061158717747621876387
Orange6136553 · 416055550133103117532976193
Lime613237237103769494171831119
Green6230235 · 451997732128714117137476161
Dark Gray4114529 · 37002726861012360987141
Medium Azure63228282590604214171821330
Dark Turquoise6345402 · 41403382582103051031160321
Dark Blue6480279 · 6186833154486352113660508
Dark Red6212010 · 42154021247603022131975978
Bright Light Yellow64678071141433024329942676
Light Aqua6474261721432961121531175
Brown4163245 · 4125225713711144804476
Sand Green4153759614715334504518
Dark Green6530046 · 425758441970187544277093
Medium Blue6004881 · 419334236946645184090
Dark Orange6223839247136243188
Bright Light Orange6186081246042040628
Earth Orange41869382245187411
Dark Purple6596897 · 42251291872166
Bright Pink66132911411506
Sand Blue4225435 · 4153768124742
Dark Pink64224381271469
Bright Light Blue65358311210349
Yellowish Green66132861211506
Lavender66097971231391
Medium Lavender61944161171346

Where to buy part 3700

Setopedia shows no prices: they vary by colour, condition and seller. Amazon links are affiliate links.

Sets that include part 3700

Sets ranked by popularity that include at least one part 3700, in any colour.

Frequently asked questions

How many LEGO sets include part 3700?

Part 3700 (Technic Brick 1 x 2 [1 Pin Hole]) appears in 2,755 sets listed on Setopedia, from 1995 to 2026, in any colour.

Which LEGO set contains the most copies of part 3700?

Set 10294 Titanic, released in 2021, contains 182 copies, the highest count in our database. On average, a set containing part 3700 has 4.8.

Which colours does LEGO part 3700 come in?

36 colours are listed for part 3700. The most common is Black, found in 636 sets.

What is the rarest colour of part 3700?

According to our inventories, it is medium lavender, found in only 1 set (71346 The Powerpuff Girls Team Pack).

What is the element ID of part 3700 in black?

In black, part 3700 has element ID 370026. Number 3700 is the mould number, the same for every colour.

Is LEGO part 3700 still used in recent sets?

Yes: it appears in sets released in 2026, such as 75425 Mos Eisley Cantina.

Where can I buy LEGO part 3700 individually?

Single parts 3700 can be ordered on Pick a Brick (lego.com) in colours currently produced, or on BrickLink for older colours. The part is also included in the sets listed on this page.