| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | AKS4-420-165B | AVK Fasteners and Tool Parts | AKS4-420-165B AVK Fasteners and Tool Parts A-K Knurled Threaded Inserts |
 | PKB-632 | Pennengineering | Inserts Straight Knurled Plastic 6.35mm 4.78mm 6-32 Brass Plain |
 | STKB-256-6 | Pennengineering | Inserts Round Knurled Plastic 4.75mm-LG 3.96mm-OD 2-56-THD Brass Plain |
 | STKB-M4-6 | Pennengineering | Inserts Round Knurled Plastic 6mm-LG 6.35mm-OD M4 X 0.7-THD Brass Plain |
 | IUTB-0616 | Pennengineering | Inserts Straight Wall Plastic 12.7mm-LG 12.93mm-OD 3/8-16-THD Brass Plain |
 | STKB-M3-4 | Pennengineering | Inserts Round Knurled Plastic 4mm-LG 4.74mm-OD M3 X 0.5-THD Brass Plain |
 | STKB-256-10 | Pennengineering | Inserts Round Knurled Plastic 7.92mm-LG 3.96mm-OD 2-56-THD Brass Plain |
 | STKC-256-6 | Pennengineering | Inserts Round Knurled Plastic 4.75mm-LG 3.96mm-OD 2-56-THD Stainless Steel 300 Passivated ASTM A380 |
 | STKC-256-10 | Pennengineering | Inserts Round Knurled Plastic 7.92mm-LG 3.96mm-OD 2-56-THD Stainless Steel 300 Passivated ASTM A380 |
 | STKC-256-4 | Pennengineering | Inserts Round Knurled Plastic 3.18mm-LG 3.96mm-OD 2-56-THD Stainless Steel 300 Passivated ASTM A380 |
 | STKC-256-8 | Pennengineering | Inserts Round Knurled Plastic 6.35mm-LG 3.96mm-OD 2-56-THD Stainless Steel 300 Passivated ASTM A380 |
| PKB-832 | Pennengineering | Inserts Straight Knurled Plastic 7.92mm-LG 5.56mm-OD 8-32-THD Brass Plain |
 | STKB-256-4 | Pennengineering | Inserts Round Knurled Plastic 3.18mm-LG 3.96mm-OD 2-56-THD Brass Plain |
 | STKB-M4-4 | Pennengineering | Inserts Round Knurled Plastic 4mm-LG 6.35mm-OD M4 X 0.7-THD Brass Plain |
 | STKB-256-8 | Pennengineering | Inserts Round Knurled Plastic 6.35mm 3.96mm 2-56 Brass Plain |
 | PKB-0420 | Pennengineering | Inserts Straight Knurled Plastic 12.7mm-LG 7.92mm-OD 1/4-20-THD Brass Plain |
 | IUTC-0616 | Pennengineering | Inserts Straight Wall Plastic 12.7mm-LG 12.93mm-OD 3/8-16-THD Stainless Steel 300 Passivated ASTM A380 |
| PKB-032 | Pennengineering | Inserts Straight Knurled Plastic 9.53mm-LG 6.35mm-OD 10-32-THD Brass Plain |
 | ITB-M3 | Pennengineering | Inserts Round Knurled Plastic 4.77mm-LG 4.77mm-OD M3 X 0.5-THD Brass Plain |
 | 1191-7EN438 | Stanley | INSERT, HELICOIL .250-28 X .25L, SST |
