Connector (100 parts)

A wide range of parts with pin and axle connectors that can be used to connect Technic parts together.

Unlike LEGO bricks which usually have a stud and antistud connection, most Technic parts can not connect with each other without using a separate part to hold them together. These parts are broadly called connectors, with two common connection types.

Axles are held in place with bushings (bush) or using parts with an axle hole connection.

Pins stay put when attached to a pin hole. Smooth pins can rotate freely when attached to a pin hole, whereas friction pins are harder to remove and can not spin very easily.

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Connector (100 parts)
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Axle

Standard axles and straight connectors with an axle connector on one end.

Pin

Straight connectors with a pin connector.

Hub

Connectors that attach parts at an angle.

Other Connector

Other connectors with a more complex shape.

Part Name(Part Number)
Overall
Rank
# Pieces(Rank)
# Sets(Rank)
# Colors(Rank)
Years
Produced
Bush3713
107
1449758
188880
81303
1977-202549 years
½ Bush32123
93
1579749
199776
91140
1980-202546 years
2L Axle Connector59443
102
894880
1464120
19391
2006-202520 years
3L Axle Connector42195
491
1517398
273597
11910
2016-202510 years
2L Pin Connector62462
98
6235118
1458121
30141
1995-202531 years
5⅓ Spiral Staircase Connector40244
1248
2071197
831257
61797
2001-202424 years
Axle & Pin w/ Extension53586
1469
1681350
681394
42591
2006-202520 years
2L Axle & Pin, Perpendicular6536
112
860885
1000173
26210
1993-202533 years
3L Axle & 2-Pin Hole42003
222
4498163
683272
17479
2002-202524 years
3L 1-Axle & 1-Pin32068
1173
2271150
781299
81331
1998-201922 years
R
3L 2-Axle & Center Pin32184
234
3653199
673275
19399
1999-202527 years
1×2 Beam w/ Bar, 45°85940
1599
2041211
981136
15447
2009-202517 years
1×2 Beam w/ Axle, Side7244
3784
332824
45258
33312
20251 year
N
1-Axle & Double Pin32291
338
1741352
432422
22309
2000-202526 years
1-Axle & 3-Pin63869
550
1514400
301553
61754
2009-202517 years
4L Axle & Double Pin98989
2109
931782
401843
24023
2012-202514 years
3-Pin, L-Shape44809
808
440819
148901
12824
2003-202523 years
2×4 2-Axle & 2-Pin80910
3700
173728
133290
24287
2021-20255 years
Split Axle & 2-Pin69819
396
1515399
434420
14644
2002-202524 years
2×2×2 Axle & Pin, Split92907
820
622660
208717
52152
2011-202515 years
2L Axle w/ Axle Hole (Pole Reverser Handle)6553
323
1858338
676274
15577
1993-202533 years
2×3 4-Axle Connector11272
2097
761959
501634
24038
2013-202513 years
Axle & Axle Connector42135
165
4371167
990175
26216
1997-202529 years
2-Axle Connector, Rubber45590
978
663626
252629
15404
2003-202523 years
Toggle Dbl. w/ 2-Pins48496
1797
1071651
541554
33180
2004-202522 years
Toggle Db. w/ Axles & Pins87408
1405
2161174
1071082
23980
2010-202516 years
Toggle Joint Connector32126
589
1023496
222685
101019
1980-202546 years
3L Double Pin65098
565
874536
333515
91152
1999-202527 years
3L Pin, 2-Pins & 1-Pin Hole15461
979
543724
153883
33119
2014-202512 years
1×3 Cross Block w/ 2-Pins, 3-Pin Holes2393
1769
1741326
471694
23989
2023-20253 years
N
3L H-Shaped Connector w/ 4-Pins, 2-Pin Holes65489
720
1302441
320535
23947
2004-202522 years
1×3 Double Pin w/ 2-Clips19159
1848
1321496
521587
24004
2004-202320 years
3×3 L-Shaped Connector w/ 4-Pins55615
1263
388868
981135
23961
2006-202520 years
2×2 Liftarm w/ Cutout, Axle Holes72008
2874
342794
182797
33305
2021-20255 years
3L w/ 2-Pin Holes32557
683
577693
186766
13743
2000-202526 years
3×3 Round Connector98585
763
496764
162846
12819
2012-202514 years
31mm D. × 15mm w/ 7-Pin Holes60208
595
636652
200729
18452
1986-202540 years
1×1 90° Elbow, 2-Axle Holes25214
429
1192459
296559
21336
2016-202510 years
2×2 45° Elbow, 2-Axle Holes, Short65473
1123
1861277
501620
19428
2020-20256 years
2×2 45° Elbow, 2-Axle Holes, Long5489
1437
1061656
292158
19431
2024-20252 years
N
2L Pin Connector, Ridged6538
314
2403285
431424
20368
1993-201422 years
R
3×3 Connector w/ Axle, 3-Pin Holes32175
1159
1881267
591492
14685
1999-201214 years
R
Axle and Pin Connector3651
973
1237454
137934
15399
1977-200327 years
R