M1.6–M8 304 A2 Stainless Steel DIN 7991 Hex Socket Countersunk (Allen) Screw

High-strength, corrosion-resistant flat countersunk Allen bolt — available in M1.6, M2, M2.5, M3, M4, M5, M6 and M8. Manufactured to DIN 7991 dimensions in 304 (A2) stainless steel for a clean, flush finish and secure fastening in metal, wood and plastics.

Key features

• Material: 304 A2 stainless steel — durable and corrosion-resistant
• Standard: DIN 7991 manufactured to metric specifications
• Head: Flat countersunk (flush) head for a smooth surface finish
• Drive: Hexagon socket (Allen) for precise torque and concealed drive
• Sizes: M1.6, M2, M2.5, M3, M4, M5, M6, M8 — multiple lengths available
• Finish: Bright natural stainless steel — low maintenance, attractive appearance

Benefits

• Flush, low-profile fastening for a professional look and reduced snagging
• Reliable holding power with metric threads engineered for strength
• Hex socket drive allows high torque and secure installation without cam-out
• Corrosion resistance suited to indoor, outdoor and light-industrial environments
• Easy to machine, countersink and finish for assembly and repair work

Typical applications

• Electronics assembly and PCBs
• Furniture and cabinetry (where a flush surface is required)
• Machine and equipment enclosures
• Automotive panels, brackets and trims
• General DIY, metalwork and repair projects

Technical & installation notes

• Conforms to DIN 7991 countersunk head dimensions — ensure compatible countersink for a flush fit
• Use the correct Allen key size for best fit and to avoid rounding the socket
• For stainless-steel fasteners, apply anti-seize or light lubrication when installing into stainless components to reduce galling risk
• 304 (A2) stainless is corrosion-resistant for most environments; for continuous exposure to saltwater or highly corrosive conditions consider A4/316 stainless instead

Why choose these DIN 7991 hex socket countersunk screws?

• Trusted DIN standard ensures consistent head and seat geometry for reliable flush mounting
• 304 A2 stainless balances cost and corrosion resistance for most applications
• Wide size range (M1.6–M8) covers precision electronics up to structural fastening needs

Add the right size to your cart to get durable, flush-mounted fastening with the clean finish and reliability of 304 A2 stainless steel DIN 7991 hex socket (Allen) countersunk screws.