Brass Pozi Countersunk Machine Screws DIN 965 — Flush-Fit Fasteners for Clean, Professional Assemblies
When a protruding screw head is not an option — whether you are assembling electronics, fitting cabinet hardware, or building precision instruments — a flush-fit fastener is essential. Brass Pozi countersunk machine screws (DIN 965) are the go-to choice for makers, engineers, and tradespeople who need a clean finish without sacrificing reliability. The flat countersunk head sits perfectly flush with the surface, eliminating snag points and giving assemblies a professional look.
Each screw is machined from solid brass to the DIN 965 standard, featuring a 90° countersunk flat head and a Pozidriv recess for positive driver engagement. Sizes range from M2 to M8, with lengths from 4mm (approx. 5/32") to 60mm (approx. 2-3/8"), available in packs of 5, 20, 50, or 100 to suit everything from a single repair to a full production run. Thread form follows ISO metric coarse pitch throughout the range.
These brass countersunk screws are widely used in electronics enclosure assembly, PCB standoff mounting, decorative woodwork joinery, model engineering, and instrument panel fitting — anywhere a non-magnetic, corrosion-resistant, flush-head fastener is needed. The natural gold tone of brass also makes them a popular choice for visible fixings in furniture and cabinetry where appearance matters.
🔩 Compatibility: ISO metric coarse thread (DIN 965). Compatible with standard metric nuts, brass inserts, and tapped holes in M2, M2.5, M3, M4, M5, M6, and M8. Use a Pozidriv (PZ) driver bit — PZ1 for M2–M3, PZ2 for M4–M6, PZ3 for M8. Not compatible with Phillips (PH) bits.
⚠️ Note: Countersink your material to the correct 90° angle before driving these screws to achieve a flush finish. If you are unsure of the exact thread pitch or length required for your application, please contact us to confirm before ordering.
✅ Key Features of These Brass Pozi Countersunk Machine Screws
- 🛠️Pozidriv Recess for Positive Drive — The Pozi cross recess provides more contact points than a standard Phillips head, reducing cam-out and allowing higher torque transfer — ideal for production assembly and repetitive fastening tasks with brass flat head machine screws.
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🔩DIN 965 Flush Countersunk Head — The 90° countersunk profile lets the head sit perfectly flush with the surface when the material is correctly countersunk, eliminating protrusions that can snag, catch clothing, or interfere with mating parts in finished assemblies.
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✨Solid Brass Construction — Machined from brass alloy for natural corrosion resistance, a non-magnetic profile, and a warm gold finish. Brass is compatible with brass inserts and fittings, avoiding galvanic corrosion common in mixed-metal assemblies.
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📏Wide Size Range M2 to M8 — Covers the most common metric machine screw sizes used in electronics, cabinetry, and light engineering. Lengths from 4mm (5/32") to 60mm (2-3/8") give flexibility to match thread engagement requirements across thin sheet metal and thicker structural panels.
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📦Flexible Pack Quantities — Available in packs of 5, 20, 50, or 100 per size. Order a small trial pack for prototyping or stock up in bulk for workshop use — larger packs offer a lower per-unit cost for ongoing projects.
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🏭ISO Metric Coarse Thread Throughout — Standard metric coarse pitch across the full M2–M8 range ensures compatibility with off-the-shelf nuts, threaded inserts, and tapped holes without needing special tooling or adapters.
📐 Technical Specifications — Brass Pozi Countersunk Machine Screws DIN 965
| Standard |
DIN 965 |
| Material |
Brass |
| Head Type |
Countersunk (Flat Head), 90° included angle |
| Drive Type |
Pozidriv (Pozi) |
| Thread Form |
ISO Metric Coarse |
| Available Sizes |
M2, M2.5, M3, M4, M5, M6, M8 |
| Available Lengths |
4mm (approx. 5/32") to 60mm (approx. 2-3/8") — see variant options |
| Pack Quantities |
5, 20, 50, 100 pieces |
| Finish |
Natural brass (unlacquered) |
| Magnetic |
No — non-magnetic |
| Corrosion Resistance |
Good — suitable for indoor and sheltered outdoor use |
| Recommended Driver Bit |
PZ1 (M2–M3), PZ2 (M4–M6), PZ3 (M8) |
| Tensile Strength |
Typically 350–500 MPa (brass alloy dependent) |
| Country of Origin |
Contact us to confirm |
❓ Frequently Asked Questions
How do I choose the right length for a brass countersunk machine screw?
A general rule: screw length should cover the material thickness plus at least 1.5x the screw diameter of thread engagement in the receiving part. For example, an M4 screw (4mm diameter) typically needs at least 6mm of thread engagement. Lengths in this range run from 4mm (approx. 5/32") to 60mm (approx. 2-3/8"). When countersinking, the head sits flush, so measure from the surface down — not from the top of the head.
What load or tensile strength can brass machine screws handle?
Brass machine screws are generally softer than steel and typically offer tensile strength in the range of 350–500 MPa depending on alloy. They are well-suited for light-to-medium duty fastening in electronics, decorative fixtures, and non-structural assemblies where corrosion resistance is more important than maximum load capacity.
Can I use these brass screws outdoors or in marine environments?
Brass offers good natural corrosion resistance and is generally suitable for sheltered outdoor use in moderate environments. It resists rust well in humid conditions. For full marine or saltwater exposure, stainless steel is typically recommended. Brass is a solid choice for garden furniture, outdoor enclosures, and sheltered exterior fixtures.
What thread standard do these screws follow and are they compatible with standard metric nuts?
These screws conform to DIN 965 with ISO metric coarse threads across the M2–M8 range. They are compatible with standard metric nuts, brass inserts, and tapped holes following ISO 68-1 thread profiles. Metric coarse is the most common standard for these sizes in the US and internationally.
What driver bit do I need for Pozidriv screws?
Pozidriv (Pozi) screws require a dedicated PZ bit — typically PZ1 for M2–M3, PZ2 for M4–M6, and PZ3 for M8. Do not use a standard Phillips (PH) bit as it will cam out and damage the recess. Pozi bits have additional contact points that provide better torque transfer and reduce slippage during installation.
When should I choose brass countersunk screws over stainless steel?
Choose brass when you need non-magnetic fasteners (electronics, sensitive instruments), a decorative gold-tone finish, or compatibility with brass inserts to avoid galvanic corrosion. Brass is also softer and easier to trim or machine if needed. Choose stainless steel when maximum corrosion resistance or higher tensile strength is the priority.
Which pack quantity should I order?
These screws are available in packs of 5, 20, 50, and 100. Packs of 5 or 20 are ideal for repairs or prototyping. Packs of 50 or 100 offer a lower per-unit cost for production runs or workshop stock. Select your size and quantity above before adding to cart.
🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.
