Black Stainless Steel Socket Cap Fully Threaded
Black Stainless Steel Socket Cap Fully Threaded
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Socket Cap Head Screws Fully Threaded (DIN 912) -A2 Stainless Steel
Key Features
✔️ Conformity Certificate supplied as standard.
✔️ Our famous CB10 blacking process.
✔️ Free tech support, call & speak to one of our experts.
| Diameter (d) | Pitch | dk | k | s (nom) | t (min) | b (max) |
|---|---|---|---|---|---|---|
| M2 | 0.40 | 3.80-3.62 | 2.00-1.86 | 1.5 | 1.0 | 16 |
| M3 | 0.50 | 5.50-5.32 | 3.00-2.86 | 2.5 | 1.3 | 18 |
| M4 | 0.70 | 7.00-6.78 | 4.00-3.82 | 3.0 | 2.0 | 20 |
| M5 | 0.80 | 8.50-8.28 | 5.00-4.82 | 4.0 | 2.5 | 22 |
| M6 | 1.00 | 10.00-9.78 | 6.00-5.70 | 5.0 | 3.0 | 24 |
| M8 | 1.25 | 13.00-12.73 | 8.00-7.64 | 6.0 | 4.0 | 28 |
| M10 | 1.50 | 16.00-15.73 | 10.00-9.64 | 8.0 | 5.0 | 32 |
| M12 | 1.75 | 18.00-17.73 | 12.00-11.57 | 10 | 6.0 | 36 |
| M14 | 2.00 | 21.00-20.67 | 14.00-13.57 | 12 | 7.0 | 40 |
| M16 | 2.00 | 24.00-23.67 | 16.00-15.57 | 14 | 8.0 | 44 |
| M18 | 2.5 | 27.00-26.67 | 18.00-17.57 | 14 | 9.0 | 48 |
| M20 | 2.50 | 30.00-29.67 | 20.00-19.48 | 17 | 10 | 52 |
| M22 | 2.50 | 33.00-32.61 | 22.00-21.48 | 17 | 11 | 56 |
| M24 | 3.00 | 36.00-35.61 | 24.00-23.48 | 19 | 12 | 60 |
| M27 | 3.00 | 40.00-39.61 | 27.00-26.48 | 19 | 13.5 | 66 |
| M30 | 3.50 | 45.00-44.61 | 30.00-29.48 | 22 | 15.5 | 72 |
All sizes in the table are in millimetres
Please call us on 01422 881 814 if you don't see the 'M' size you need listed here on the website.
Black Stainless Steel Fully Threaded Socket Cap Head Bolts
Our socket cap head bolt are manufactured using A2 grade stainless steel (304) to DIN 912 specification. They're finished with our very own CB10 black oxide coating - delivering a permanent, black corrosion-resistant, cap head bolt that looks as superb and will give years of service.
A profile head with serious holding power
The cylindrical cap head and internal hex socket are what define this bolt - the head sits proud of the surface with a neat, compact profile, and the hexagon socket allows high torque to be applied with a standard Allen key or hex bit, giving a secure and reliable fixing in even the most demanding of places.
Our CB10 black stainless socket cap head bolts are a firm favourite across production line builds, custom fabrication, roll cages, project assemblies, and motorsport applications - in fact just about anywhere a strong, recessed black fixing contributes to the finished aesthetic.
Why use CB10 black stainless fasteners?
Painted black fasteners look ok in the packet - but usually chip the moment an Allen key touches the socket, or can start to flake within weeks of any outdoor or high-humidity exposure. The CB10 black finish is chemically bonded directly to the stainless steel surface. It isn't a coating sitting on top waiting to be damaged - it's actually part of the bolt. If you're looking for a cap head bolt that performs in tough environments and still looks fantastic years down the line, 'congrats' you've found it.
DIN 912 Specification
Supplied to DIN 912 with metric thread, available in sizes M2 to M30 and a wide range of lengths. Compatible with standard metric hex nuts and washers - also available in black stainless from Carbolts for a fully matched fixing set.
Material: A2 Stainless Steel (Grade 304)
Finish: CB10 Permanent Black Oxide
Standard: DIN 912 / ISO 4762
Thread: Metric
Head Style: Cylindrical cap head
Drive: Hexagon socket (Allen key / hex bit)
Click to download the Fully Threaded Socket Cap Bolt / Screw technical information sheet.
