Inserts - Self Tapping - For Plastics - Steel

4 Products in this selection
  • Threaded inserts are screwed into preformed or predrilled holes and cut own threads into the wall of permanent installations.
  • Provides a strong wear and vibration resistant thread.
  • Low volumes can be installed by winding in with a bolt through the threaded centre. Large volumes can be installed with hand installation tools (Sold Seperately)
  • Hole sizes are reference only. Can variey on batchs. Optimum hole size is to be determinded through experimentation.
  • A 60o countersink is required for flush mounting.
  • Use with plastics, light metal alloys or hard wood. Made from steel with zinc chromate finish.
Additional resources:
Assortment Kits
A more concise listing may be found on the Smallparts store at Inserts - Self Tapping - For Plastics - Steel. Smallparts promote the most popular MBA products.
Internal Thread Rec. Hole Diameter Length (L) Outside Diameter (B) Indicative
Image
Internal Thread
10-24 UNC (4.76mm)
Rec. Hole Diameter
7.09
mm

(0.279 in.)
Length (L)
10.0
mm

(0.394 in.)
Outside Diameter (B)
8.001
mm
Self Tapping Inserts - 10-24 UNC -4.76mm- 7.09x10 mm - Steel
Material: Steel    Required Hole Depth: 13.005 mm    Soft Metals Hole Size: 7.29    Material to be used in: Plastic, Light Metal Alloys and Hardwood   
Part Number: IN-TP-0476C-100-P Self Tapping Inserts - 10-24 UNC - 4.76mm - 7.09x10 mm - Steel
10 Available Immediately | Further orders can be expected around Sat, Jun 28, 2025
$3.95 AUD
$3.95 AUD
Each
Internal Thread Rec. Hole Diameter Length (L) Outside Diameter (B) Indicative
Image
Internal Thread
10-24 UNC (4.76mm)
Rec. Hole Diameter
7.09
mm

(0.279 in.)
Length (L)
10.0
mm

(0.394 in.)
Outside Diameter (B)
8.001
mm
Self Tapping Inserts - 10-24 UNC -4.76mm- 7.09x10 mm - Steel
Material: Steel    Required Hole Depth: 13.005 mm    Soft Metals Hole Size: 7.29    Material to be used in: Plastic, Light Metal Alloys and Hardwood   
Part Number: IN-TP-0476C-100-P Self Tapping Inserts - 10-24 UNC - 4.76mm - 7.09x10 mm - Steel
10 Available Immediately | Further orders can be expected around Sat, Jun 28, 2025
$3.95 AUD
$3.95 AUD
Each
View the product page first if you are unsure.
Internal Thread
1/4-20 UNC (6.35mm)
Rec. Hole Diameter
8.59
mm

(0.338 in.)
Length (L)
14.0
mm

(0.551 in.)
Outside Diameter (B)
10.008
mm
Self Tapping Inserts - 1/4-20 UNC -6.35mm- 8.59x14 mm - Steel
Material: Steel    Required Hole Depth: 16.993 mm    Soft Metals Hole Size: 8.89    Material to be used in: Plastic, Light Metal Alloys and Hardwood   
Part Number: IN-TP-0635C-140-P Self Tapping Inserts - 1/4-20 UNC - 6.35mm - 8.59x14 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 28, 2025
$5.14 AUD
$5.14 AUD
Each
Internal Thread
1/4-20 UNC (6.35mm)
Rec. Hole Diameter
8.59
mm

(0.338 in.)
Length (L)
14.0
mm

(0.551 in.)
Outside Diameter (B)
10.008
mm
Self Tapping Inserts - 1/4-20 UNC -6.35mm- 8.59x14 mm - Steel
Material: Steel    Required Hole Depth: 16.993 mm    Soft Metals Hole Size: 8.89    Material to be used in: Plastic, Light Metal Alloys and Hardwood   
Part Number: IN-TP-0635C-140-P Self Tapping Inserts - 1/4-20 UNC - 6.35mm - 8.59x14 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 28, 2025
$5.14 AUD
$5.14 AUD
Each
View the product page first if you are unsure.
Internal Thread
5/16-18 UNC (7.94mm)
Rec. Hole Diameter
10.59
mm

(0.417 in.)
Length (L)
15.0
mm

(0.591 in.)
Outside Diameter (B)
12.014
mm
Self Tapping Inserts - 5/16-18 UNC -7.94mm- 10.59x15 mm - Steel
Material: Steel    Required Hole Depth: 18.009 mm    Soft Metals Hole Size: 10.90    Material to be used in: Plastic, Light Metal Alloys and Hardwood   
Part Number: IN-TP-0794C-150-P Self Tapping Inserts - 5/16-18 UNC - 7.94mm - 10.59x15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 28, 2025
$4.23 AUD
$5.07 AUD $4.23 AUD
Each
Internal Thread
5/16-18 UNC (7.94mm)
Rec. Hole Diameter
10.59
mm

(0.417 in.)
Length (L)
15.0
mm

(0.591 in.)
Outside Diameter (B)
12.014
mm
Self Tapping Inserts - 5/16-18 UNC -7.94mm- 10.59x15 mm - Steel
Material: Steel    Required Hole Depth: 18.009 mm    Soft Metals Hole Size: 10.90    Material to be used in: Plastic, Light Metal Alloys and Hardwood   
Part Number: IN-TP-0794C-150-P Self Tapping Inserts - 5/16-18 UNC - 7.94mm - 10.59x15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 28, 2025
$4.23 AUD
$5.07 AUD $4.23 AUD
Each
View the product page first if you are unsure.
Internal Thread
3/8-16 UNC (9.53mm)
Rec. Hole Diameter
12.60
mm

(0.496 in.)
Length (L)
18.0
mm

(0.709 in.)
Outside Diameter (B)
14.021
mm
Self Tapping Inserts - 3/8-16 UNC -9.53mm- 12.6x18 mm - Steel
Material: Steel    Required Hole Depth: 21.996 mm    Soft Metals Hole Size: 12.90    Material to be used in: Plastic, Light Metal Alloys and Hardwood   
Part Number: IN-TP-0953C-180-P Self Tapping Inserts - 3/8-16 UNC - 9.53mm - 12.6x18 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 28, 2025
$5.23 AUD
$6.27 AUD $5.23 AUD
Each
Internal Thread
3/8-16 UNC (9.53mm)
Rec. Hole Diameter
12.60
mm

(0.496 in.)
Length (L)
18.0
mm

(0.709 in.)
Outside Diameter (B)
14.021
mm
Self Tapping Inserts - 3/8-16 UNC -9.53mm- 12.6x18 mm - Steel
Material: Steel    Required Hole Depth: 21.996 mm    Soft Metals Hole Size: 12.90    Material to be used in: Plastic, Light Metal Alloys and Hardwood   
Part Number: IN-TP-0953C-180-P Self Tapping Inserts - 3/8-16 UNC - 9.53mm - 12.6x18 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 28, 2025
$5.23 AUD
$6.27 AUD $5.23 AUD
Each
View the product page first if you are unsure.