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
1454458
189481
81309
1977-202549 years
½ Bush32123
93
1583349
200676
91142
1980-202546 years
2L Axle Connector59443
103
904481
1473120
19394
2006-202520 years
3L Axle Connector42195
483
1643376
280594
11910
2016-202510 years
2L Pin Connector62462
98
6282119
1468121
30142
1995-202531 years
5⅓ Spiral Staircase Connector40244
1254
2071207
831263
61804
2001-202424 years
Axle & Pin w/ Extension53586
1478
1681355
681402
42603
2006-202520 years
2L Axle & Pin, Perpendicular6536
115
861786
1004173
26211
1993-202533 years
3L Axle & 2-Pin Hole42003
223
4507164
686271
17482
2002-202524 years
3L 1-Axle & 1-Pin32068
1183
2271154
781304
81337
1998-201922 years
R
3L 2-Axle & Center Pin32184
235
3661199
677275
19401
1999-202527 years
1×2 Beam w/ Bar, 45°85940
1436
2181176
991134
23986
2009-202517 years
1×2 Beam w/ Axle, Side7244
3642
342805
54862
33314
20251 year
N
1-Axle & Double Pin32291
342
1741356
432426
22310
2000-202526 years
1-Axle & 3-Pin63869
556
1516400
302555
61765
2009-202517 years
4L Axle & Double Pin98989
2118
931788
401849
24030
2012-202514 years
3-Pin, L-Shape44809
810
440822
148903
12826
2003-202523 years
2×4 2-Axle & 2-Pin80910
3711
173741
133295
24295
2021-20255 years
Split Axle & 2-Pin69819
399
1515401
434421
14647
2002-202524 years
2×2×2 Axle & Pin, Split92907
822
633659
209720
52158
2011-202515 years
2L Axle w/ Axle Hole (Pole Reverser Handle)6553
326
1862339
678274
15580
1993-202533 years
2×3 4-Axle Connector11272
2105
761972
501639
24045
2013-202513 years
Axle & Axle Connector42135
165
4410168
997175
26217
1997-202529 years
2-Axle Connector, Rubber45590
980
666630
254628
15413
2003-202523 years
Toggle Dbl. w/ 2-Pins48496
1809
1071659
541561
33190
2004-202522 years
Toggle Db. w/ Axles & Pins87408
1414
2161180
1071087
23987
2010-202516 years
Toggle Joint Connector32126
593
1023498
222689
101023
1980-202546 years
3L Double Pin65098
565
878539
334518
91155
1999-202527 years
3L Pin, 2-Pins & 1-Pin Hole15461
984
543729
153887
33130
2014-202512 years
1×3 Cross Block w/ 2-Pins, 3-Pin Holes2393
1762
1771318
481688
23996
2023-20253 years
N
3L H-Shaped Connector w/ 4-Pins, 2-Pin Holes65489
727
1302444
320535
23953
2004-202522 years
1×3 Double Pin w/ 2-Clips19159
1857
1321505
521595
24011
2004-202320 years
3×3 L-Shaped Connector w/ 4-Pins55615
1270
388873
981140
23967
2006-202520 years
2×2 Liftarm w/ Cutout, Axle Holes72008
2884
342805
182802
33314
2021-20255 years
3L w/ 2-Pin Holes32557
688
577703
186773
13745
2000-202526 years
3×3 Round Connector98585
760
499769
164845
12822
2012-202514 years
31mm D. × 15mm w/ 7-Pin Holes60208
598
636657
200734
18454
1986-202540 years
2L Pin Connector, Ridged6538
315
2403284
431427
20370
1993-201422 years
R
3×3 Connector w/ Axle, 3-Pin Holes32175
1167
1881276
591495
14689
1999-201214 years
R
Axle and Pin Connector3651
978
1237454
137938
15408
1977-200327 years
R

Curved

Curved Technic connectors.