Ultrasonic/Heat Staking Inserts

SI (Standard Inserts) Ultrasonic/Heat Staking Inserts are hexagonal-shaped body inserts that provide rotational torque resistance and knurling provides torque out resistance. The heat staking inserts are installed by pressing the insert into the mounting hole with a thermal press to melt the plastic surrounding the insert. The SI® brand inserts employ press-in and heat/ultrasonic installation methods to provide strong, reusable, and permanent threads in plastic. These SI® inserts are available in brass, stainless steel, and aluminum. The applications include wearables, smartphones, handheld devices, automotive, aerospace and defense, medical, transportation, industrial, and recreational equipment.

Results: 268
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Product Type Material Mounting Hole Size Length Outside Diameter Thread Size Packaging
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS 3.764In Stock
Rp22.199
Rp16.475
Rp12.971
Rp11.008
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.316 in 0.5 in 0.342 in 1/4-20
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 3.43X3.86 M3 THREAD ULTRASONIC HEAT STAKING DIAGONAL 8.756In Stock
Rp14.860
Rp10.549
Rp8.458
Rp7.962
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 4.01 mm 3.43 mm 4.55 mm M3


SI Mounting Fixings ULTRASONIC INSERT, BRASS 33.198In Stock
Rp4.036
Rp2.917
Rp2.330
Rp2.110
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 3.89 mm 3.43 mm 4.37 mm M3
SI Mounting Fixings HI-TORQUE INSERT, BRASS 13.267In Stock
Rp6.788
Rp4.770
Rp3.816
Rp3.596
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 0.223 in 0.321 in 0.243 in 8-32
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS 8.305In Stock
Rp14.493
Rp10.182
Rp8.164
Rp7.687
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.189 in 0.281 in 0.21 in 6-32
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS 8.335In Stock
Rp19.447
Rp14.548
Rp11.319
Rp10.677
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 5.67 mm 8.15 mm 6.17 mm M4
SI Mounting Fixings HI-TORQUE INSERT, BRASS 3.43X3.86 M3 THREAD ULTRASONIC HEAT STAKING DIAGONAL 15.214In Stock
Rp7.522
Rp5.339
Rp4.275
Rp3.834
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 4.01 mm 3.43 mm M3
SI Mounting Fixings HI-TORQUE INSERT, BRASS 7.358In Stock
Rp14.860
Rp10.549
Rp8.458
Rp7.962
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 8.03 mm 12.7 mm 8.69 mm M6
SI Mounting Fixings ULTRASONIC,INSERT,STAINLESS 9.496In Stock
Rp18.346
Rp13.631
Rp10.622
Rp9.999
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 7.06 mm 11.1 mm 8.33 mm M5
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 3.18X3.07 M2 THREAD ULTRASONIC HEAT STAKING DIAGONAL 10.451In Stock
Rp9.907
Rp6.990
Rp5.596
Rp5.027
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 3.23 mm 3.18 mm 3.73 mm M2
SI Mounting Fixings ULTRASONIC INSERT, STAINLESS 8.408In Stock
Rp12.108
Rp8.513
Rp6.825
Rp6.146
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.185 in 0.25 in 0.219 in 6-32
SI Mounting Fixings HI-TORQUE INSERT, BRASS 64.005In Stock
Rp6.788
Rp4.825
Rp3.853
Rp3.467
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 4.01 mm 5.74 mm 4.55 mm M3
SI Mounting Fixings ULTRASONIC INSERT, STAINLESS 10.444In Stock
Rp12.842
Rp9.026
Rp7.228
Rp6.513
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 3.89 mm 3.43 mm 4.37 mm M2.5
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS 9.133In Stock
Rp24.217
Rp17.942
Rp13.980
Rp13.172
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 8.03 mm 12.7 mm 8.69 mm M6
SI Mounting Fixings HI-TORQUE INSERT, BRASS 9.769In Stock
Rp17.245
Rp12.145
Rp9.723
Rp8.769
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 6.43 mm 9.53 mm 7.92 mm M5
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS 10.935In Stock
Rp15.778
Rp11.191
Rp8.971
Rp8.072
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 4.01 mm 5.74 mm 4.55 mm M2.5
SI Mounting Fixings ULTRASONIC INSERT, BRASS 9.710In Stock
Rp10.824
Rp7.632
Rp6.109
Rp5.761
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 6.25 mm 9.53 mm 7.54 mm M5
SI Mounting Fixings HI-TORQUE INSERT, BRASS 16.327In Stock
Rp8.439
Rp6.091
Rp4.880
Rp4.385
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 3.23 mm 4 mm 3.73 mm M2
SI Mounting Fixings HI-TORQUE INSERT 14.310In Stock
17.000Expected 21/12/2026
Rp5.871
Rp4.220
Rp3.376
Rp3.045
Min.: 1
Mult.: 1
Inserts Threaded Insert Aluminum 4.01 mm 5.74 mm 4.55 mm M3
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS 39.067In Stock
Rp15.594
Rp11.118
Rp8.898
Rp8.017
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 4.01 mm 5.74 mm 4.55 mm M3
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 4.70X5.51 M4 THREAD ULTRASONIC HEAT STAKING DIAGONAL 4.596In Stock
10.000Expected 17/11/2026
Rp20.181
Rp15.172
Rp11.815
Rp11.136
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 5.67 mm 4.7 mm 6.17 mm M4
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS 7.646In Stock
Rp17.062
Rp12.750
Rp9.925
Rp9.356
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 6.43 mm 9.52 mm 6.93 mm M5
SI Mounting Fixings HI-TORQUE INSERT, BRASS 8.794In Stock
10.000Expected 12/02/2027
Rp8.806
Rp6.329
Rp5.063
Rp4.568
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 3.23 mm 3.99 mm 4.75 mm M2 Bulk
SI Mounting Fixings HI-TORQUE INSERT, BRASS 9.211In Stock
31.000On Order
Rp11.008
Rp7.870
Rp6.293
Rp5.669
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 5.67 mm 8.15 mm 7.14 mm M4
SI Mounting Fixings ULTRASONIC INSERT, BRASS 146.425In Stock
87.041On Order
Rp4.770
Rp3.266
Rp2.623
Rp2.458
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 3.58 mm 5.56 mm 4.37 mm M3