Connector (101 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 (101 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
108
1454658
189582
81312
1977-202549 years
½ Bush32123
93
1583749
200877
91147
1980-202546 years
2L Axle Connector59443
104
904582
1474120
19394
2006-202520 years
3L Axle Connector42195
481
1649375
281593
11913
2016-202510 years
2L Pin Connector62462
98
6294119
1470122
30142
1995-202531 years
5⅓ Spiral Staircase Connector40244
1254
2071209
831265
61804
2001-202424 years
Axle & Pin w/ Extension53586
1478
1681359
681402
42604
2006-202520 years
2L Axle & Pin, Perpendicular6536
116
861786
1004173
26213
1993-202533 years
3L Axle & 2-Pin Hole42003
224
4508164
687272
17482
2002-202524 years
3L 1-Axle & 1-Pin32068
1187
2271157
781305
81339
1998-201922 years
R
3L 2-Axle & Center Pin32184
235
3667199
678274
19401
1999-202527 years
1×2 Beam w/ Bar, 45°85940
1439
2181176
991135
23992
2009-202517 years
1×2 Beam w/ Axle, Side7244
3643
342808
54861
33316
20251 year
N
1-Axle & Double Pin32291
342
1741357
432427
22310
2000-202526 years
1-Axle & 3-Pin63869
556
1516402
302558
61765
2009-202517 years
4L Axle & Double Pin98989
2120
931791
401850
24036
2012-202514 years
3-Pin, L-Shape44809
812
440825
148906
12827
2003-202523 years
2×4 2-Axle & 2-Pin80910
3714
173744
133296
24301
2021-20255 years
Split Axle & 2-Pin69819
399
1515403
434423
14649
2002-202524 years
2×2×2 Axle & Pin, Split92907
824
633660
209722
52158
2011-202515 years
2L Axle w/ Axle Hole (Pole Reverser Handle)6553
326
1862341
678275
15581
1993-202533 years
2×3 4-Axle Connector11272
2107
761975
501642
24051
2013-202513 years
Axle & Axle Connector42135
165
4410168
997175
26219
1997-202529 years
2-Axle Connector, Rubber45590
980
666632
254630
15419
2003-202523 years
Toggle Dbl. w/ 2-Pins48496
1811
1071662
541562
33190
2004-202522 years
Toggle Db. w/ Axles & Pins87408
1415
2161181
1071089
23993
2010-202516 years
Toggle Joint Connector32126
595
1023498
222691
101023
1980-202546 years
3L Double Pin65098
566
878540
334519
91161
1999-202527 years
3L Pin, 2-Pins & 1-Pin Hole15461
984
543731
153887
33131
2014-202512 years
1×3 Cross Block w/ 2-Pins, 3-Pin Holes2393
1763
1771318
481689
24002
2023-20253 years
N
3L H-Shaped Connector w/ 4-Pins65489
728
1302444
320535
23959
2004-202522 years
1×3 Double Pin w/ 2-Clips19159
1860
1321506
521600
24017
2004-202320 years
3×3 L-Shaped Connector w/ 4-Pins55615
1271
388874
981140
23973
2006-202520 years
2×2 Liftarm w/ Cutout, Axle Holes72008
2885
342808
182806
33316
2021-20255 years
3L w/ 2-Pin Holes32557
690
577705
186775
13747
2000-202526 years
3×3 Round Connector98585
763
499771
164845
12823
2012-202514 years
31mm D. × 15mm w/ 7-Pin Holes60208
600
636658
200737
18455
1986-202540 years
2L Pin Connector, Ridged6538
315
2403285
431429
20370
1993-201422 years
R
3×3 Connector w/ Axle, 3-Pin Holes32175
1170
1881278
591495
14690
1999-201214 years
R
Axle and Pin Connector3651
978
1237455
137938
15414
1977-200327 years
R

Curved

Curved Technic connectors.