M4 A2 Countersunk Pin Torx Security Screws

Product Description

M4 A2 Stainless Steel Countersunk Pin Torx Security Screws

M4 stainless steel machine screws with a countersunk head and six-lobe security recess containing a central pin. A matching T20 security Torx bit with a centre hole is required, helping deter removal with ordinary driver bits.

Available Sizes

Countersunk screw length is measured overall, including the head.

Key Features

• A2 stainless steel
• M4 metric coarse thread with 0.7mm pitch
• Countersunk head for seating flush in a suitable countersink
• Six-lobe pin Torx security drive
• T20 security driver required
• Listed head diameter: 7.8mm
• Listed head height: 2.5mm

ISO 14581 is a reference standard for hexalobular socket countersunk head screws; this product uses a security-pin drive variant. Please contact us before ordering to confirm compliance certification availability.

Use with matching M4 nuts or tapped holes. Fully engage the correct security bit before tightening and check that the countersink accommodates the head.

Related Products

• M3 A2 Stainless Steel Countersunk Pin Torx Security Screws
• Nuts

Specifications are intended as a guide. Confirm the required thread size, length, head dimensions and security drive before ordering.

Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.