Screws

1917 Products in this selection
Combined category including sub-categories of screws. These include socket cap, button, cap tipped, set, shoulder, thumb, wood, ultra low head, countersunk, self tapping, low head socket, fillister head, hex washer head, pan head, hex head, round head, coach, large shallow head, binder head, self drilling, security, panel, roof bolt, and captive.
Small Parts & Bearings

Additional resources:
PDF Screws Catalogue
Washers
Nuts

A more comprehensive listing may be found on the MBA Minibearings main store at Screws.
Thread Knob Style - Indicative
Image
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
304 Stainless
Fillister Head Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Fillister Head - Slotted
Part Number: SC028C-005-F-SL-S4 (PK-10) Fillister Head Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Slotted Screw
5 units (50 pcs) Available Now | Item Discontinued - Up to 5 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Thread Knob Style - Indicative
Image
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
304 Stainless
Fillister Head Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Fillister Head - Slotted
Part Number: SC028C-005-F-SL-S4 (PK-10) Fillister Head Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Slotted Screw
5 units (50 pcs) Available Now | Item Discontinued - Up to 5 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
304 Stainless
Pan Head Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Pan Head - Phillips
Part Number: SC028C-005-P-PH-S4 (PK-50) Pan Head Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Phillips Screw
4 units (200 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.14 AUD
$3.87 AUD $2.14 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
304 Stainless
Pan Head Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Pan Head - Phillips
Part Number: SC028C-005-P-PH-S4 (PK-50) Pan Head Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Phillips Screw
4 units (200 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.14 AUD
$3.87 AUD $2.14 AUD
Per 50
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
304 Stainless
Socket Cap Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Socket Cap - Stainless
Part Number: SC028C-005-C-SK-S4 (PK-10) Socket Cap Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Screw
106 units (1060 pcs) Available Now | Further orders can be expected around Fri, Sep 18, 2026
$2.41 AUD
$4.30 AUD $2.41 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
304 Stainless
Socket Cap Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Socket Cap - Stainless
Part Number: SC028C-005-C-SK-S4 (PK-10) Socket Cap Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Screw
106 units (1060 pcs) Available Now | Further orders can be expected around Fri, Sep 18, 2026
$2.41 AUD
$4.30 AUD $2.41 AUD
Per 10
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
4.8

+ 0.0 / - 0.76
(Equiv. 0.189 in.)
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Socket
Part Number: SK028C-005-SK-S4 (PK-50) Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Socket Screw
1 pack (50 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$3.05 AUD
$5.61 AUD $3.05 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
4.8

+ 0.0 / - 0.76
(Equiv. 0.189 in.)
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Socket
Part Number: SK028C-005-SK-S4 (PK-50) Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Socket Screw
1 pack (50 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$3.05 AUD
$5.61 AUD $3.05 AUD
Per 50
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
High Tensile Steel / Black Oxide
Socket Cap Screws - 4-40 UNC - 2.85mm - 4.8 mm - High Tensile Steel / Black Oxide Alloy Steel
Material: High Tensile Steel Black Oxide   
Category: Screws - Socket Cap - Alloy Steel
Part Number: SC028C-005-C-SK-C (PK-10) Socket Cap Screws - 4-40 UNC - 2.85mm - 4.8 mm - High Tensile Steel / Black Oxide Alloy Steel Screw
8 units (80 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.59 AUD
$4.75 AUD $2.59 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
High Tensile Steel / Black Oxide
Socket Cap Screws - 4-40 UNC - 2.85mm - 4.8 mm - High Tensile Steel / Black Oxide Alloy Steel
Material: High Tensile Steel Black Oxide   
Category: Screws - Socket Cap - Alloy Steel
Part Number: SC028C-005-C-SK-C (PK-10) Socket Cap Screws - 4-40 UNC - 2.85mm - 4.8 mm - High Tensile Steel / Black Oxide Alloy Steel Screw
8 units (80 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.59 AUD
$4.75 AUD $2.59 AUD
Per 10
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
1.60
Cap Tipped Screws - 4-40 UNC - 2.85mm - 6.4x1.6 mm Socket - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Cap Tipped - Socket
Part Number: SC028C-006-C-SK-S188-NT (PK-5000) Cap Tipped Screws - 4-40 UNC - 2.85mm - 6.4x1.6 mm Socket - Stainless Steel 304 Similar to A2, 18-8 HRB80 Screw
Out of Stock | Backorder Now | Orders can be expected around Mon, Aug 17, 2026
$15,632.95 AUD
$15,632.95 AUD
Per 5000
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
1.60
Cap Tipped Screws - 4-40 UNC - 2.85mm - 6.4x1.6 mm Socket - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Cap Tipped - Socket
Part Number: SC028C-006-C-SK-S188-NT (PK-5000) Cap Tipped Screws - 4-40 UNC - 2.85mm - 6.4x1.6 mm Socket - Stainless Steel 304 Similar to A2, 18-8 HRB80 Screw
Out of Stock | Backorder Now | Orders can be expected around Mon, Aug 17, 2026
$15,632.95 AUD
$15,632.95 AUD
Per 5000
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
Nylon (Zytel 101)
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - Nylon - Zytel 101 - Slotted
Material: Nylon (Polyamide 6/6)   
Category: Screws - Countersunk - Slotted
Part Number: SK028C-005-SL-N (PK-10) Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - Nylon - Zytel 101 - Slotted Screw
7 units (70 pcs) Available Now | Item Discontinued - Up to 7 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
4.8
-
Nylon (Zytel 101)
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - Nylon - Zytel 101 - Slotted
Material: Nylon (Polyamide 6/6)   
Category: Screws - Countersunk - Slotted
Part Number: SK028C-005-SL-N (PK-10) Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - Nylon - Zytel 101 - Slotted Screw
7 units (70 pcs) Available Now | Item Discontinued - Up to 7 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Slotted
Part Number: SK028C-006-SL-S4 (PK-50) Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Slotted Screw
1 pack (50 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$10.40 AUD
$19.76 AUD $10.40 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Slotted
Part Number: SK028C-006-SL-S4 (PK-50) Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Slotted Screw
1 pack (50 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$10.40 AUD
$19.76 AUD $10.40 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Fillister Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Fillister Head - Phillips
Part Number: SC028C-006-F-PH-S4 (PK-50) Fillister Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips Screw
16 units (800 pcs) Available Now | Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Fillister Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Fillister Head - Phillips
Part Number: SC028C-006-F-PH-S4 (PK-50) Fillister Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips Screw
16 units (800 pcs) Available Now | Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Pan Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Pan Head - Phillips
Part Number: SC028C-006-P-PH-S4 (PK-10) Pan Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips Screw
9 units (90 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$1.86 AUD
$3.44 AUD $1.86 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Pan Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Pan Head - Phillips
Part Number: SC028C-006-P-PH-S4 (PK-10) Pan Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips Screw
9 units (90 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$1.86 AUD
$3.44 AUD $1.86 AUD
Per 10
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Socket Cap - Stainless
Part Number: SC028C-006-C-SK-S4 (PK-100) Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Screw
6 units (600 pcs) Available Now | Further orders can be expected around Fri, Sep 18, 2026
$3.14 AUD
$5.70 AUD $3.14 AUD
Per 100
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Socket Cap - Stainless
Part Number: SC028C-006-C-SK-S4 (PK-100) Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Screw
6 units (600 pcs) Available Now | Further orders can be expected around Fri, Sep 18, 2026
$3.14 AUD
$5.70 AUD $3.14 AUD
Per 100
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Button - Socket
Part Number: SC028C-006-B-SK-S4 (PK-10) Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket Screw
3 units (30 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.23 AUD
$4.06 AUD $2.23 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
304 Stainless
Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Button - Socket
Part Number: SC028C-006-B-SK-S4 (PK-10) Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket Screw
3 units (30 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.23 AUD
$4.06 AUD $2.23 AUD
Per 10
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
6.4

+ 0.0 / - 0.76
(Equiv. 0.252 in.)
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Socket
Part Number: SK028C-006-SK-S4 (PK-50) Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket Screw
5 units (250 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$3.14 AUD
$5.87 AUD $3.14 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
6.4

+ 0.0 / - 0.76
(Equiv. 0.252 in.)
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Socket
Part Number: SK028C-006-SK-S4 (PK-50) Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket Screw
5 units (250 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$3.14 AUD
$5.87 AUD $3.14 AUD
Per 50
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
Alloy Steel
Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - Alloy Steel Socket
Material: Steel Alloy   
Category: Screws - Button - Socket
Part Number: SC028C-006-B-SK-C (PK-20) Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - Alloy Steel Socket Screw
4 units (80 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.14 AUD
$3.95 AUD $2.14 AUD
Per 20
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
Alloy Steel
Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - Alloy Steel Socket
Material: Steel Alloy   
Category: Screws - Button - Socket
Part Number: SC028C-006-B-SK-C (PK-20) Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - Alloy Steel Socket Screw
4 units (80 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.14 AUD
$3.95 AUD $2.14 AUD
Per 20
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
Aluminium
Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - Aluminium
Material: Aluminium   
Category: Screws - Socket Cap - Aluminium
Part Number: SC028C-006-C-SK-A (PK-25) Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - Aluminium Screw
1 pack (25 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 25
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
Aluminium
Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - Aluminium
Material: Aluminium   
Category: Screws - Socket Cap - Aluminium
Part Number: SC028C-006-C-SK-A (PK-25) Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - Aluminium Screw
1 pack (25 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 25
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
Black Oxide Steel
Pan Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - Black Oxide Steel Phillips
Material: Black Oxide Steel   
Category: Screws - Pan Head - Phillips
Part Number: SC028C-006-P-PH-C (PK-50) Pan Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - Black Oxide Steel Phillips Screw
16 units (800 pcs) Available Now | Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
Black Oxide Steel
Pan Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - Black Oxide Steel Phillips
Material: Black Oxide Steel   
Category: Screws - Pan Head - Phillips
Part Number: SC028C-006-P-PH-C (PK-50) Pan Head Screws - 4-40 UNC - 2.85mm - 6.4 mm - Black Oxide Steel Phillips Screw
16 units (800 pcs) Available Now | Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
7.9

+ 0.0 / - 0.76
(Equiv. 0.311 in.)
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Socket
Part Number: SK028C-007-SK-S4 (PK-20) Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Socket Screw
8 units (160 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.59 AUD
$4.81 AUD $2.59 AUD
Per 20
Thread
4-40 UNC (2.85mm)
Knob Style
7.9

+ 0.0 / - 0.76
(Equiv. 0.311 in.)
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Socket
Part Number: SK028C-007-SK-S4 (PK-20) Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Socket Screw
8 units (160 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.59 AUD
$4.81 AUD $2.59 AUD
Per 20
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
High Tensile Steel / Black Oxide
Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - High Tensile Steel / Black Oxide Alloy Steel
Material: High Tensile Steel Black Oxide   
Category: Screws - Socket Cap - Alloy Steel
Part Number: SC028C-006-C-SK-C (PK-20) Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - High Tensile Steel / Black Oxide Alloy Steel Screw
6 units (120 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.68 AUD
$4.91 AUD $2.68 AUD
Per 20
Thread
4-40 UNC (2.85mm)
Knob Style
6.4
-
High Tensile Steel / Black Oxide
Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - High Tensile Steel / Black Oxide Alloy Steel
Material: High Tensile Steel Black Oxide   
Category: Screws - Socket Cap - Alloy Steel
Part Number: SC028C-006-C-SK-C (PK-20) Socket Cap Screws - 4-40 UNC - 2.85mm - 6.4 mm - High Tensile Steel / Black Oxide Alloy Steel Screw
6 units (120 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$2.68 AUD
$4.91 AUD $2.68 AUD
Per 20
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
7.9
-
High Tensile Steel / Black Oxide
Socket Cap Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Alloy Steel
Material: High Tensile Steel Black Oxide   
Category: Screws - Socket Cap - Alloy Steel
Part Number: SC028C-007-C-SK-C (PK-100) Socket Cap Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Alloy Steel Screw
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 14, 2026
$59.68 AUD
$59.68 AUD
Per 100
Thread
4-40 UNC (2.85mm)
Knob Style
7.9
-
High Tensile Steel / Black Oxide
Socket Cap Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Alloy Steel
Material: High Tensile Steel Black Oxide   
Category: Screws - Socket Cap - Alloy Steel
Part Number: SC028C-007-C-SK-C (PK-100) Socket Cap Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Alloy Steel Screw
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 14, 2026
$59.68 AUD
$59.68 AUD
Per 100
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
7.9

+ 0.0 / - 0.76
(Equiv. 0.311 in.)
-
High Tensile Steel / Black Oxide
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide   
Category: Screws - Countersunk - Socket
Part Number: SK028C-007-SK-C (PK-10) Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Socket Screw
8 units (80 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$5.05 AUD
$5.05 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
7.9

+ 0.0 / - 0.76
(Equiv. 0.311 in.)
-
High Tensile Steel / Black Oxide
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide   
Category: Screws - Countersunk - Socket
Part Number: SK028C-007-SK-C (PK-10) Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Socket Screw
8 units (80 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$5.05 AUD
$5.05 AUD
Per 10
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
7.9
-
Nylon (Zytel 101)
Fillister Head Screws - 4-40 UNC - 2.85mm - 7.9 mm - Nylon - Zytel 101 - Slotted
Material: Nylon (Zytel 101)   
Category: Screws - Fillister Head - Slotted
Part Number: SC028C-007-F-SL-N (PK-50) Fillister Head Screws - 4-40 UNC - 2.85mm - 7.9 mm - Nylon - Zytel 101 - Slotted Screw
1 pack (50 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
7.9
-
Nylon (Zytel 101)
Fillister Head Screws - 4-40 UNC - 2.85mm - 7.9 mm - Nylon - Zytel 101 - Slotted
Material: Nylon (Zytel 101)   
Category: Screws - Fillister Head - Slotted
Part Number: SC028C-007-F-SL-N (PK-50) Fillister Head Screws - 4-40 UNC - 2.85mm - 7.9 mm - Nylon - Zytel 101 - Slotted Screw
1 pack (50 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 50
Thread
4-40 UNC (2.85mm)
Knob Style
9.5
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-010-PH-S4 (PK-100) Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips Screw
3 units (300 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$4.59 AUD
$8.54 AUD $4.59 AUD
Per 100
Thread
4-40 UNC (2.85mm)
Knob Style
9.5
-
304 Stainless
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-010-PH-S4 (PK-100) Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips Screw
3 units (300 pcs) Available Now | Further orders can be expected around Tue, Jul 14, 2026
$4.59 AUD
$8.54 AUD $4.59 AUD
Per 100
View the product page first if you are unsure.
Thread
4-40 UNC (2.85mm)
Knob Style
9.5
-
304 Stainless
Fillister Head Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Fillister Head - Phillips
Part Number: SC028C-010-F-PH-S4 (PK-10) Fillister Head Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips Screw
8 units (80 pcs) Available Now | Item Discontinued - Up to 8 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
9.5
-
304 Stainless
Fillister Head Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Fillister Head - Phillips
Part Number: SC028C-010-F-PH-S4 (PK-10) Fillister Head Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips Screw
8 units (80 pcs) Available Now | Item Discontinued - Up to 8 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Thread
4-40 UNC (2.85mm)
Knob Style
9.5
-
304 Stainless
Socket Cap Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Socket Cap - Stainless
Part Number: SC028C-010-C-SK-S4 (PK-100) Socket Cap Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Screw
4 units (400 pcs) Available Now | Further orders can be expected around Fri, Sep 18, 2026
$3.59 AUD
$6.48 AUD $3.59 AUD
Per 100
Thread
4-40 UNC (2.85mm)
Knob Style
9.5
-
304 Stainless
Socket Cap Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80   
Category: Screws - Socket Cap - Stainless
Part Number: SC028C-010-C-SK-S4 (PK-100) Socket Cap Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Screw
4 units (400 pcs) Available Now | Further orders can be expected around Fri, Sep 18, 2026
$3.59 AUD
$6.48 AUD $3.59 AUD
Per 100
View the product page first if you are unsure.