Molded-In Inserts

SI (Standard Inserts) Molded-In Inserts are installed during the molding process, and the inserts are located in the mold cavity by core pins. The core pins are withdrawn when the mold is opened, leaving the inserts permanently encapsulated in the plastic section with only the threads exposed. Inserts installed during the molding process avoid the need for additional procedures or installation equipment. The molded-in inserts include blind threaded inserts (IBA/IBB/IBC), self-locking blind threaded inserts (ILBC), through threaded inserts ( ITA/ITB/ITC), and knurled inserts (STKA/STKB/STKC). Typical applications include electronics (wearables, smartphones, and hand-held devices), automotive, aerospace and defense, medical, transportation, industrial, and recreational equipment.

Results: 558
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Product Type Material Length Outside Diameter Thread Size
SI Mounting Fixings MOLD-IN INSERT,BLIND,STAINLESS 9,092In Stock
$1.11
$0.832
$0.648
$0.61
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.531 in 0.25 in 8-32
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 11,315In Stock
10,000Expected 08/12/2026
$0.45
$0.326
$0.261
$0.235
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 8.37 mm 4.78 mm M3
SI Mounting Fixings MOLD-IN INSERT,BLIND,STAINLESS 10,000In Stock
$0.94
$0.668
$0.535
$0.481
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 7.13 mm 4.78 mm M3
SI Mounting Fixings MOLD-IN INSERT, BRASS 7,694In Stock
$0.60
$0.423
$0.339
$0.319
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 7.13 mm 7.13 mm M5
SI Mounting Fixings MOLD-IN INSERT, ALUM 10,000In Stock
$0.39
$0.274
$0.219
$0.206
Min.: 1
Mult.: 1
Inserts Threaded Insert Aluminum 7.13 mm 7.13 mm M5
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 4,993In Stock
$0.86
$0.638
$0.497
$0.422
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 0.719 in 0.344 in 1/4-20
SI Mounting Fixings MOLD-IN INSERT, STAINLESS 1,715In Stock
$0.68
$0.483
$0.387
$0.364
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 4.77 mm 4.77 mm M3
SI Mounting Fixings INTERNAL-THRD SPACR KBRL BRASS 19,865In Stock
$0.62
$0.438
$0.351
$0.316
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 3 mm 4.74 mm M3
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 2,435In Stock
$0.46
$0.332
$0.266
$0.239
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 0.344 in 0.188 in 4-40
SI Mounting Fixings MOLD-IN INSERT, BRASS 807In Stock
$0.61
$0.428
$0.343
$0.323
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 6.35 mm 6.35 mm M4
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 1,282In Stock
$0.49
$0.348
$0.279
$0.251
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 0.344 in 0.219 in 6-32
SI Mounting Fixings INTERNAL THRD SPACER KNRL S/S 701In Stock
$0.86
$0.616
$0.493
$0.444
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 4 mm 4.74 mm M3
SI Mounting Fixings INTERNAL-THRD SPACR KNRL BRASS 678In Stock
$0.55
$0.391
$0.313
$0.282
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 0.375 in 0.219 in 6-32
SI Mounting Fixings MOLD-IN INSERT,BLIND,STAINLESS 10,567In Stock
$0.87
$0.646
$0.503
$0.474
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.344 in 0.219 in 6-32
SI Mounting Fixings INTERNAL-THRD SPACR KNRL BRASS 9,125In Stock
$0.88
$0.656
$0.511
$0.481
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 0.75 in 0.25 in 8-32
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 941In Stock
$0.77
$0.544
$0.435
$0.41
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 13.48 mm 7.14 mm M5
SI Mounting Fixings MOLD-IN INSERT, ALUM 579In Stock
$0.32
$0.232
$0.186
$0.167
Min.: 1
Mult.: 1
Inserts Threaded Insert Aluminum 4.77 mm 4.77 mm M3
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 424In Stock
$0.54
$0.386
$0.309
$0.278
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 0.344 in 0.25 in 8-32
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 440In Stock
$0.52
$0.369
$0.295
$0.278
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 10.31 mm 4.78 mm M3
SI Mounting Fixings MOLD-IN INSERT,BLIND,STAINLESS 870In Stock
$0.87
$0.62
$0.496
$0.446
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 6.35 mm 4.78 mm M2.5
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 67In Stock
$0.43
$0.311
$0.249
$0.224
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 0.25 in 0.219 in 6-32
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 17In Stock
$0.64
$0.455
$0.364
$0.328
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 11.13 mm 4.78 mm M3
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 829In Stock
$0.63
$0.453
$0.363
$0.326
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 11.91 mm 6.35 mm M4
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 1,824In Stock
$0.44
$0.308
$0.246
$0.232
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 6.35 mm 6.35 mm M4
SI Mounting Fixings MOLD-IN INSERT, BRASS 250In Stock
$0.57
$0.409
$0.328
$0.295
Min.: 1
Mult.: 1
Inserts Threaded Insert Leaded Brass 0.25 in 0.25 in 8-32