Inserts - Expansion - Press In - Brass - Flanged

Inserts -> Expansion -> Press In -> Brass -> Flanged

There are 8 products in the sub-categories of Inserts - Expansion - Press In - Brass - Flanged. Browse the Inserts - Expansion - Press In - Brass - Flanged products table.

Category Details

A selection of Flanged Brass Press In Expansion Inserts. Use for cored or drilled holes in plastics. Designed to replace molded in inserts and threads in plastic casings. Also known as threaded inserts.

  • Used to create a reusable threaded hole in a material by expanding once it is in place.
  • Installed by being pressed into a pre-drilled hole, and a subsequent tightening of a screw or bolt causes it to expand and grip the material's interior, providing a strong, stable connection.
  • Common types are for wood, plastic, and masonry, with different designs tailored to the material's properties.
  • Material : Brass.
  • Easiest inserts to install - simply push into a pre-moulded hole.
  • Used with plastics or other materials. Material must be strong enough to withstand the expansion of the insert.
  • The insertion of the screw locks the external knurls into the wall of the hole.
  • Provides excellent thread durability. Not as strong as wind-in inserts.

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Inserts - Expansion - Press In - Brass - Flanged category on the MBA Minibearings main store.
Internal Thread Rec. Hole Diameter Length (L) Recommended Hole Diameter (A) Knurled OD (B) Indicative
Image
Expansion Inserts - 2-56 UNC - 2.18mm - 3.175x3.96 mm Press In - Brass Insert
Internal Thread
2-56 UNC (2.18mm)

Rec. Hole Diameter
3.175
mm

(Equiv. 0.125 in.)
Length (L)
3.96
mm

(Equiv. 0.156 in.)
Knurled OD (B)
3.429
mm
Expansion Inserts - 2-56 UNC - 2.18mm - 3.175x3.96 mm Press In - Brass Insert
Material: Brass    Flange OD (A): 4.750   
Part Number: IN-EP-022C-039-FB (PK-5)
11 units (55 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$3.14 AUD
$3.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 11 available can be backordered.
Internal Thread Rec. Hole Diameter Length (L) Recommended Hole Diameter (A) Indicative
Image
Expansion Inserts - 2-56 UNC - 2.18mm - 3.175x3.96 mm Press In - Brass Insert
Internal Thread
2-56 UNC (2.18mm)

Rec. Hole Diameter
3.175
mm

(Equiv. 0.125 in.)
Length (L)
3.96
mm

(Equiv. 0.156 in.)
Expansion Inserts - 2-56 UNC - 2.18mm - 3.175x3.96 mm Press In - Brass Insert
Material: Brass    Knurled OD (B): 3.429 mm    Flange OD (A): 4.750   
Part Number: IN-EP-022C-039-FB (PK-5)
11 units (55 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$3.14 AUD
$3.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

11 units (55 pcs) Available Now. Backorder if more than 11.
Expansion Inserts - 4-40 UNC - 2.85mm - 3.962x4.78 mm Press In - Brass Insert
Internal Thread
4-40 UNC (2.85mm)

Rec. Hole Diameter
3.962
mm

(Equiv. 0.156 in.)
Length (L)
4.78
mm

(Equiv. 0.188 in.)
Knurled OD (B)
4.216
mm
Expansion Inserts - 4-40 UNC - 2.85mm - 3.962x4.78 mm Press In - Brass Insert
Material: Brass    Flange OD (A): 5.537   
Part Number: IN-EP-029C-048-FB (PK-5)
14 units (70 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$5.32 AUD
$5.32 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 14 available can be backordered.
Expansion Inserts - 4-40 UNC - 2.85mm - 3.962x4.78 mm Press In - Brass Insert
Internal Thread
4-40 UNC (2.85mm)

Rec. Hole Diameter
3.962
mm

(Equiv. 0.156 in.)
Length (L)
4.78
mm

(Equiv. 0.188 in.)
Expansion Inserts - 4-40 UNC - 2.85mm - 3.962x4.78 mm Press In - Brass Insert
Material: Brass    Knurled OD (B): 4.216 mm    Flange OD (A): 5.537   
Part Number: IN-EP-029C-048-FB (PK-5)
14 units (70 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$5.32 AUD
$5.32 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

14 units (70 pcs) Available Now. Backorder if more than 14.
Expansion Inserts - 6-32 UNC - 3.5mm - 4.75x6.35 mm Press In - Brass Insert
Internal Thread
6-32 UNC (3.5mm)

Rec. Hole Diameter
4.750
mm

(Equiv. 0.187 in.)
Length (L)
6.35
mm

(Equiv. 0.25 in.)
Knurled OD (B)
5.055
mm
Expansion Inserts - 6-32 UNC - 3.5mm - 4.75x6.35 mm Press In - Brass Insert
Material: Brass    Flange OD (A): 6.325   
Part Number: IN-EP-035C-064-FB (PK-2)
38 units (76 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$5.68 AUD
$5.68 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 38 available can be backordered.
Expansion Inserts - 6-32 UNC - 3.5mm - 4.75x6.35 mm Press In - Brass Insert
Internal Thread
6-32 UNC (3.5mm)

Rec. Hole Diameter
4.750
mm

(Equiv. 0.187 in.)
Length (L)
6.35
mm

(Equiv. 0.25 in.)
Expansion Inserts - 6-32 UNC - 3.5mm - 4.75x6.35 mm Press In - Brass Insert
Material: Brass    Knurled OD (B): 5.055 mm    Flange OD (A): 6.325   
Part Number: IN-EP-035C-064-FB (PK-2)
38 units (76 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$5.68 AUD
$5.68 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

38 units (76 pcs) Available Now. Backorder if more than 38.
Expansion Inserts - 8-32 UNC - 4.17mm - 5.537x7.95 mm Press In - Brass Insert
Internal Thread
8-32 UNC (4.17mm)

Rec. Hole Diameter
5.537
mm

(Equiv. 0.218 in.)
Length (L)
7.95
mm

(Equiv. 0.313 in.)
Knurled OD (B)
5.842
mm
Expansion Inserts - 8-32 UNC - 4.17mm - 5.537x7.95 mm Press In - Brass Insert
Material: Brass    Flange OD (A): 7.112   
Part Number: IN-EP-042C-079-FB (PK-10)
1 pack (10 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$11.50 AUD
$11.50 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Expansion Inserts - 8-32 UNC - 4.17mm - 5.537x7.95 mm Press In - Brass Insert
Internal Thread
8-32 UNC (4.17mm)

Rec. Hole Diameter
5.537
mm

(Equiv. 0.218 in.)
Length (L)
7.95
mm

(Equiv. 0.313 in.)
Expansion Inserts - 8-32 UNC - 4.17mm - 5.537x7.95 mm Press In - Brass Insert
Material: Brass    Knurled OD (B): 5.842 mm    Flange OD (A): 7.112   
Part Number: IN-EP-042C-079-FB (PK-10)
1 pack (10 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$11.50 AUD
$11.50 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (10 pcs) Available Now. Backorder if more than 1.
Expansion Inserts - 10-32 UNF - 4.76mm - 6.35x9.53 mm Press In - Brass Insert
Internal Thread
10-32 UNF (4.76mm)

Rec. Hole Diameter
6.350
mm

(Equiv. 0.25 in.)
Length (L)
9.53
mm

(Equiv. 0.375 in.)
Knurled OD (B)
6.655
mm
Expansion Inserts - 10-32 UNF - 4.76mm - 6.35x9.53 mm Press In - Brass Insert
Material: Brass    Flange OD (A): 7.925   
Part Number: IN-EP-048F-095-FB (PK-10)
4 units (40 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$9.50 AUD
$9.50 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Expansion Inserts - 10-32 UNF - 4.76mm - 6.35x9.53 mm Press In - Brass Insert
Internal Thread
10-32 UNF (4.76mm)

Rec. Hole Diameter
6.350
mm

(Equiv. 0.25 in.)
Length (L)
9.53
mm

(Equiv. 0.375 in.)
Expansion Inserts - 10-32 UNF - 4.76mm - 6.35x9.53 mm Press In - Brass Insert
Material: Brass    Knurled OD (B): 6.655 mm    Flange OD (A): 7.925   
Part Number: IN-EP-048F-095-FB (PK-10)
4 units (40 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$9.50 AUD
$9.50 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

4 units (40 pcs) Available Now. Backorder if more than 4.
Expansion Inserts - 1/4-20 UNC - 6.35mm - 7.938x12.7 mm Press In - Brass Insert
Internal Thread
1/4-20 UNC (6.35mm)

Rec. Hole Diameter
7.938
mm

(Equiv. 0.313 in.)
Length (L)
12.70
mm

(Equiv. 0.5 in.)
Knurled OD (B)
8.280
mm
Expansion Inserts - 1/4-20 UNC - 6.35mm - 7.938x12.7 mm Press In - Brass Insert
Material: Brass    Flange OD (A): 9.525   
Part Number: IN-EP-064C-127-FB (PK-10)
3 units (30 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$8.50 AUD
$8.50 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
Expansion Inserts - 1/4-20 UNC - 6.35mm - 7.938x12.7 mm Press In - Brass Insert
Internal Thread
1/4-20 UNC (6.35mm)

Rec. Hole Diameter
7.938
mm

(Equiv. 0.313 in.)
Length (L)
12.70
mm

(Equiv. 0.5 in.)
Expansion Inserts - 1/4-20 UNC - 6.35mm - 7.938x12.7 mm Press In - Brass Insert
Material: Brass    Knurled OD (B): 8.280 mm    Flange OD (A): 9.525   
Part Number: IN-EP-064C-127-FB (PK-10)
3 units (30 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$8.50 AUD
$8.50 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

3 units (30 pcs) Available Now. Backorder if more than 3.
Expansion Inserts - 5/16-18 UNC - 7.94mm - 9.525x14.3 mm Press In - Brass Insert
Internal Thread
5/16-18 UNC (7.94mm)

Rec. Hole Diameter
9.525
mm

(Equiv. 0.375 in.)
Length (L)
14.30
mm

(Equiv. 0.563 in.)
Knurled OD (B)
9.881
mm
Expansion Inserts - 5/16-18 UNC - 7.94mm - 9.525x14.3 mm Press In - Brass Insert
Material: Brass    Flange OD (A): 11.100   
Part Number: IN-EP-079C-143-FB (Each)
1 Available Now | Further orders can be expected around Sun, Jan 18, 2026
$1.14 AUD
$1.36 AUD $1.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Expansion Inserts - 5/16-18 UNC - 7.94mm - 9.525x14.3 mm Press In - Brass Insert
Internal Thread
5/16-18 UNC (7.94mm)

Rec. Hole Diameter
9.525
mm

(Equiv. 0.375 in.)
Length (L)
14.30
mm

(Equiv. 0.563 in.)
Expansion Inserts - 5/16-18 UNC - 7.94mm - 9.525x14.3 mm Press In - Brass Insert
Material: Brass    Knurled OD (B): 9.881 mm    Flange OD (A): 11.100   
Part Number: IN-EP-079C-143-FB (Each)
1 Available Now | Further orders can be expected around Sun, Jan 18, 2026
$1.14 AUD
$1.36 AUD $1.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. Backorder if more than 1.
Expansion Inserts - 3/8-16 UNC - 9.53mm - 11.1x15.88 mm Press In - Brass Insert
Internal Thread
3/8-16 UNC (9.53mm)

Rec. Hole Diameter
11.100
mm

(Equiv. 0.437 in.)
Length (L)
15.88
mm

(Equiv. 0.625 in.)
Knurled OD (B)
11.455
mm
Expansion Inserts - 3/8-16 UNC - 9.53mm - 11.1x15.88 mm Press In - Brass Insert
Material: Brass    Flange OD (A): 12.700   
Part Number: IN-EP-095C-159-FB (PK-5)
2 units (10 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$7.68 AUD
$13.50 AUD $7.68 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Expansion Inserts - 3/8-16 UNC - 9.53mm - 11.1x15.88 mm Press In - Brass Insert
Internal Thread
3/8-16 UNC (9.53mm)

Rec. Hole Diameter
11.100
mm

(Equiv. 0.437 in.)
Length (L)
15.88
mm

(Equiv. 0.625 in.)
Expansion Inserts - 3/8-16 UNC - 9.53mm - 11.1x15.88 mm Press In - Brass Insert
Material: Brass    Knurled OD (B): 11.455 mm    Flange OD (A): 12.700   
Part Number: IN-EP-095C-159-FB (PK-5)
2 units (10 pcs) Available Now | Further orders can be expected around Sun, Jan 18, 2026
$7.68 AUD
$13.50 AUD $7.68 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

2 units (10 pcs) Available Now. Backorder if more than 2.