Collection: Screws - Security - Socket - Countersunk

11 Products in this selection
This is a combined category of Countersunk Socket Security Screws.
Use the filters in the table below, or the category tree above to refine the selection. To order any item, simply click the part number for a full product page, then add to your cart.
Additional resources:
PDF Screws Catalogue
Washers
Nuts
A more concise listing may be found on the Smallparts store at Screws - Security - Socket - Countersunk. Smallparts promote the most popular MBA products.
Thread Size (C) Length Material Tool To Match Indicative
Image
Thread Size (C)
M3 (3x0.5mm)
Length
6
mm

(0.236 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M3
Security Screws - M3 -3x0.5mm- 6 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.500 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0300-006-SK-S4 (10 Pcs) Security Screws - M3 -3x0.5mm- 6 mm - 304 Stainless
99 units (990 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 10
Thread Size (C) Length Material Tool To Match Indicative
Image
Thread Size (C)
M3 (3x0.5mm)
Length
6
mm

(0.236 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M3
Security Screws - M3 -3x0.5mm- 6 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.500 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0300-006-SK-S4 (10 Pcs) Security Screws - M3 -3x0.5mm- 6 mm - 304 Stainless
99 units (990 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 10
Thread Size (C)
M3 (3x0.5mm)
Length
6
mm

(0.236 in.)
Material
304 Stainless
Tool To Match
Torx Security Pin Type
Security Screws - M3 -3x0.5mm- 6 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.500 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0300-006-TX-S4 (50 Pcs) Security Screws - M3 -3x0.5mm- 6 mm - 304 Stainless
2 units (100 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 50
Thread Size (C)
M3 (3x0.5mm)
Length
6
mm

(0.236 in.)
Material
304 Stainless
Tool To Match
Torx Security Pin Type
Security Screws - M3 -3x0.5mm- 6 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.500 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0300-006-TX-S4 (50 Pcs) Security Screws - M3 -3x0.5mm- 6 mm - 304 Stainless
2 units (100 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 50
Thread Size (C)
M4 (4x0.7mm)
Length
10
mm

(0.394 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M4
Security Screws - M4 -4x0.7mm- 10 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.700 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0400-010-SK-S4 (5 Pcs) Security Screws - M4 -4x0.7mm- 10 mm - 304 Stainless
1 pack (5 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $6.48 AUD
Regular price $12.32 AUD Sale price $6.48 AUD
Per 5
Thread Size (C)
M4 (4x0.7mm)
Length
10
mm

(0.394 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M4
Security Screws - M4 -4x0.7mm- 10 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.700 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0400-010-SK-S4 (5 Pcs) Security Screws - M4 -4x0.7mm- 10 mm - 304 Stainless
1 pack (5 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $6.48 AUD
Regular price $12.32 AUD Sale price $6.48 AUD
Per 5
Thread Size (C)
M4 (4x0.7mm)
Length
12
mm

(0.472 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M4
Security Screws - M4 -4x0.7mm- 12 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.700 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0400-012-SK-S4 (20 Pcs) Security Screws - M4 -4x0.7mm- 12 mm - 304 Stainless
1 pack (20 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $9.00 AUD
Regular price $17.10 AUD Sale price $9.00 AUD
Per 20
Thread Size (C)
M4 (4x0.7mm)
Length
12
mm

(0.472 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M4
Security Screws - M4 -4x0.7mm- 12 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.700 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0400-012-SK-S4 (20 Pcs) Security Screws - M4 -4x0.7mm- 12 mm - 304 Stainless
1 pack (20 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $9.00 AUD
Regular price $17.10 AUD Sale price $9.00 AUD
Per 20
Thread Size (C)
M4 (4x0.7mm)
Length
16
mm

(0.63 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M4
Security Screws - M4 -4x0.7mm- 16 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.700 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0400-016-SK-S4 (4 Pcs) Security Screws - M4 -4x0.7mm- 16 mm - 304 Stainless
1 pack (4 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $7.81 AUD
Regular price $14.84 AUD Sale price $7.81 AUD
Per 4
Thread Size (C)
M4 (4x0.7mm)
Length
16
mm

(0.63 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M4
Security Screws - M4 -4x0.7mm- 16 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.700 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0400-016-SK-S4 (4 Pcs) Security Screws - M4 -4x0.7mm- 16 mm - 304 Stainless
1 pack (4 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $7.81 AUD
Regular price $14.84 AUD Sale price $7.81 AUD
Per 4
Thread Size (C)
M5 (5x0.8mm)
Length
16
mm

(0.63 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M5
Security Screws - M5 -5x0.8mm- 16 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.800 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0500-016-SK-S4 (15 Pcs) Security Screws - M5 -5x0.8mm- 16 mm - 304 Stainless
1 pack (15 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $9.00 AUD
Regular price $17.10 AUD Sale price $9.00 AUD
Per 15
Thread Size (C)
M5 (5x0.8mm)
Length
16
mm

(0.63 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M5
Security Screws - M5 -5x0.8mm- 16 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 0.800 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0500-016-SK-S4 (15 Pcs) Security Screws - M5 -5x0.8mm- 16 mm - 304 Stainless
1 pack (15 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $9.00 AUD
Regular price $17.10 AUD Sale price $9.00 AUD
Per 15
Thread Size (C)
M6 (6x1mm)
Length
12
mm

(0.472 in.)
Material
Steel Case Hardened Zinc Alloy
Tool To Match
PCDB250
Security Screws - M6 -6x1mm- 12 mm - Steel Case Hardened Zinc Alloy
Material: Steel Carbon Steel Case Hardened Zinc Alloy    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Zinc Plated
Part Number: SKS0600-012-SK-Z (100 Pcs) Security Screws - M6 -6x1mm- 12 mm - Steel Case Hardened Zinc Alloy
Out of Stock | Backorder Now | Orders can be expected around Thu, Jul 10, 2025
Regular price $57.86 AUD
Regular price Sale price $57.86 AUD
Per 100
Thread Size (C)
M6 (6x1mm)
Length
12
mm

(0.472 in.)
Material
Steel Case Hardened Zinc Alloy
Tool To Match
PCDB250
Security Screws - M6 -6x1mm- 12 mm - Steel Case Hardened Zinc Alloy
Material: Steel Carbon Steel Case Hardened Zinc Alloy    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Zinc Plated
Part Number: SKS0600-012-SK-Z (100 Pcs) Security Screws - M6 -6x1mm- 12 mm - Steel Case Hardened Zinc Alloy
Out of Stock | Backorder Now | Orders can be expected around Thu, Jul 10, 2025
Regular price $57.86 AUD
Regular price Sale price $57.86 AUD
Per 100
View the product page first if you are unsure.
Thread Size (C)
M6 (6x1mm)
Length
16
mm

(0.63 in.)
Material
Steel Case Hardened Zinc Alloy
Tool To Match
PCDB250
Security Screws - M6 -6x1mm- 16 mm - Steel Case Hardened Zinc Alloy
Material: Steel Carbon Steel Case Hardened Zinc Alloy    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Zinc Plated
Part Number: SKS0600-016-SK-Z (100 Pcs) Security Screws - M6 -6x1mm- 16 mm - Steel Case Hardened Zinc Alloy
Out of Stock | Backorder Now | Orders can be expected around Thu, Jul 10, 2025
Regular price $60.68 AUD
Regular price Sale price $60.68 AUD
Per 100
Thread Size (C)
M6 (6x1mm)
Length
16
mm

(0.63 in.)
Material
Steel Case Hardened Zinc Alloy
Tool To Match
PCDB250
Security Screws - M6 -6x1mm- 16 mm - Steel Case Hardened Zinc Alloy
Material: Steel Carbon Steel Case Hardened Zinc Alloy    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Zinc Plated
Part Number: SKS0600-016-SK-Z (100 Pcs) Security Screws - M6 -6x1mm- 16 mm - Steel Case Hardened Zinc Alloy
Out of Stock | Backorder Now | Orders can be expected around Thu, Jul 10, 2025
Regular price $60.68 AUD
Regular price Sale price $60.68 AUD
Per 100
View the product page first if you are unsure.
Thread Size (C)
M6 (6x1mm)
Length
20
mm

(0.787 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M6
Security Screws - M6 -6x1mm- 20 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0600-020-SK-S4 (45 Pcs) Security Screws - M6 -6x1mm- 20 mm - 304 Stainless
1 pack (45 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 45
Thread Size (C)
M6 (6x1mm)
Length
20
mm

(0.787 in.)
Material
304 Stainless
Tool To Match
MD7TOOL-M6
Security Screws - M6 -6x1mm- 20 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Stainless
Part Number: SKS0600-020-SK-S4 (45 Pcs) Security Screws - M6 -6x1mm- 20 mm - 304 Stainless
1 pack (45 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 45
Thread Size (C)
M6 (6x1mm)
Length
20
mm

(0.787 in.)
Material
Steel Case Hardened Zinc Alloy
Tool To Match
PCDB250
Security Screws - M6 -6x1mm- 20 mm - Steel Case Hardened Zinc Alloy
Material: Steel Carbon Steel Case Hardened Zinc Alloy    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Zinc Plated
Part Number: SKS0600-020-SK-Z (100 Pcs) Security Screws - M6 -6x1mm- 20 mm - Steel Case Hardened Zinc Alloy
Out of Stock | Backorder Now | Orders can be expected around Thu, Jul 10, 2025
Regular price $61.68 AUD
Regular price Sale price $61.68 AUD
Per 100
Thread Size (C)
M6 (6x1mm)
Length
20
mm

(0.787 in.)
Material
Steel Case Hardened Zinc Alloy
Tool To Match
PCDB250
Security Screws - M6 -6x1mm- 20 mm - Steel Case Hardened Zinc Alloy
Material: Steel Carbon Steel Case Hardened Zinc Alloy    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Zinc Plated
Part Number: SKS0600-020-SK-Z (100 Pcs) Security Screws - M6 -6x1mm- 20 mm - Steel Case Hardened Zinc Alloy
Out of Stock | Backorder Now | Orders can be expected around Thu, Jul 10, 2025
Regular price $61.68 AUD
Regular price Sale price $61.68 AUD
Per 100
View the product page first if you are unsure.
Thread Size (C)
M6 (6x1mm)
Length
25
mm

(0.984 in.)
Material
Steel Case Hardened Zinc Alloy
Tool To Match
PCDB250
Security Screws - M6 -6x1mm- 25 mm - Steel Case Hardened Zinc Alloy
Material: Steel Carbon Steel Case Hardened Zinc Alloy    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Zinc Plated
Part Number: SKS0600-025-SK-Z (50 Pcs) Security Screws - M6 -6x1mm- 25 mm - Steel Case Hardened Zinc Alloy
Out of Stock | Backorder Now | Orders can be expected around Thu, Jul 10, 2025
Regular price $33.05 AUD
Regular price Sale price $33.05 AUD
Per 50
Thread Size (C)
M6 (6x1mm)
Length
25
mm

(0.984 in.)
Material
Steel Case Hardened Zinc Alloy
Tool To Match
PCDB250
Security Screws - M6 -6x1mm- 25 mm - Steel Case Hardened Zinc Alloy
Material: Steel Carbon Steel Case Hardened Zinc Alloy    Pitch: 1.000 mm   
Category: Screws - Security - Socket - Countersunk - Zinc Plated
Part Number: SKS0600-025-SK-Z (50 Pcs) Security Screws - M6 -6x1mm- 25 mm - Steel Case Hardened Zinc Alloy
Out of Stock | Backorder Now | Orders can be expected around Thu, Jul 10, 2025
Regular price $33.05 AUD
Regular price Sale price $33.05 AUD
Per 50
View the product page first if you are unsure.