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 The core pins are withdrawn when the mold is opened, leaving the inserts permanently encapsulated in the plastic section with only the threads exposed.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 (CRC) 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 Hardware MOLD-IN INSERT, BLIND, BRASS
1 282Expected 9/2/2026
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.344 in 0.219 in 6-32
SI Mounting Hardware MOLD-IN INSERT,BLIND,STAINLESS 2In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 0.531 in 0.281 in 10-32
SI Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS
839Expected 8/26/2026
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.375 in 0.219 in 6-32
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM
6 205Expected 1/8/2027
Min.: 1
Mult.: 1

Inserts Threaded Insert Aluminum 0.531 in 0.281 in 10-24
SI Mounting Hardware MOLD-IN INSERT, STAINLESS
13Expected 12/18/2026
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 6.35 mm 6.35 mm M4
SI Mounting Hardware INTERNAL-THRD SPACR KNRL ALUM 1In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Aluminum 4 mm 4.74 mm M3
SI Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS 33 472Factory Stock Available
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 3 mm 6.35 mm M4
SI Mounting Hardware MOLD-IN INSERT, BLIND, BRASS Non-Stocked Lead-Time 2 Weeks
Min.: 10 000
Mult.: 1 000

Inserts Threaded Insert Leaded Brass 0.438 in 0.281 in 10-32
SI Mounting Hardware MOLD-IN INSERT, BLIND, BRASS Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.406 in 0.219 in 6-32
SI Mounting Hardware MOLD-IN INSERT,BLIND,STAINLESS Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 7.13 mm 4.78 mm M3
SI Mounting Hardware Non-Stocked Lead-Time 4 Weeks
Min.: 10 000
Mult.: 5 000

Inserts Threaded Insert 0.25 in 10-32
SI Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.187 in 0.375 in 1/4-20
SI Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS Non-Stocked Lead-Time 4 Weeks
Min.: 10 000
Mult.: 1 000

Inserts Threaded Insert Leaded Brass 0.187 in 0.25 in 8-32
SI Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS Non-Stocked Lead-Time 9 Weeks
Min.: 10 000
Mult.: 1 000

Inserts Threaded Insert Leaded Brass 10 mm 4.74 mm M3
SI Mounting Hardware INTERNAL THRD SPACER KNRL S/S Non-Stocked Lead-Time 10 Weeks
Min.: 10 000
Mult.: 1 000

Inserts Threaded Insert Stainless Steel 0.125 in 0.25 in 8-32
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 500

Inserts Threaded Insert Aluminum 0.625 in 0.281 in 10-24
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 500

Inserts Threaded Insert Aluminum 0.716 in 0.281 in 10-24
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 500

Inserts Threaded Insert Aluminum 0.356 in 0.281 in 10-24
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 500

Inserts Threaded Insert Aluminum 0.438 in 0.281 in 10-24
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 500

Inserts Threaded Insert Aluminum 0.469 in 0.281 in 10-32
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 1 000

Inserts Threaded Insert Aluminum 0.281 in 0.281 in 10-32
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 500

Inserts Threaded Insert Aluminum 0.719 in 0.344 in 1/4-20
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 500

Inserts Threaded Insert Aluminum 0.819 in 0.344 in 1/4-20
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 1 000

Inserts Threaded Insert Aluminum 0.344 in 0.344 in 1/4-20
SI Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Non-Stocked
Min.: 10 000
Mult.: 500

Inserts Threaded Insert Aluminum 0.811 in 0.438 in 5/16-18