Hexagon Head Set Screws / Bolts DIN 933 A2 Black Stainless Steel
Diameter (d)
Pitch
s
k
M2
0.40
4.00-3.82
1.52-1.28
M2.5
0.45
5.00-4.82
1.82-1.58
M3
0.50
5.50-5.32
2.12-1.88
M4
0.70
7.00-6.64
3.00-2.60
M5
0.80
8.00-7.64
3.74-3.26
M6
1.00
10.00-9.64
4.24-3.76
M8
1.25
13.00-12.57
5.54-5.06
M10
1.50
17.00-16.57
6.69-6.11
M12
1.75
19.00-18.48
7.79-7.21
M14
2.00
22.00-21.16
9.09-8.51
M16
2.00
24.00-23.16
10.29-9.71
M18
2.50
27.00-26.15
11.85-11.15
M20
2.50
30.00-29.16
12.85-12.15
M22
2.50
32.00-31.00
14.35-13.65
M24
3.00
36.00-35.00
15.35-14.65
M27
3.00
41.00-40.00
17.35-16.64
M30
3.50
46.00-45.00
19.12-18.28
M33
3.50
50.00-49.00
21.42-20.58
M36
4.00
55.00-53.80
22.92-22.08
Sizes in millimetres.
Black Stainless Steel Hexagon Head Set Screws Our fully threaded hexagon head set screws are manufactured using A2 grade stainless steel (304) to the DIN 933 specification. These Hexagon Bolts are finished using the CB10 black oxide process - delivering a permanent, black corrosion-resistant ener that performs as well as it looks. Zero chipping on the spanner flats. Just a deep, consistent black finish that holds its appearance for years and years.
The workhorse ener, done in black The hexagon head set screw is one of the most widely used eners in engineering and construction - for good reason. The six-sided head accepts a standard spanner or socket, allowing high torque to be applied quickly and reliably. The full thread runs the entire length of the bolt, making these screws ideal for pre-tapped holes or using with a nut - giving maximum flexibility across a wide range of material thicknesses and assembly types.
These set screws deliver consistent thread engagement and reliable clamping force in even the most demanding applications. Whether you're assembling fabricated steelwork, fixing brackets, or putting together outdoor structures, the DIN 933 hex head set screw is the bolt that gets the job done.
Our CB10 black stainless hex head set screws are the go-to choice for custom automotive builds, trailer modification, agricultural equipment, outdoor furniture, gates, railings and architectural metalwork - anywhere a strong, reliable black fixing is essential for a sleek finish. They're equally well suited to general engineering assemblies, machine frames, enclosures and industrial applications where corrosion resistance is required
Why CB10 and not painted black? Painted black eners look ok until the spanner hits them - then finish can chip off or flake off over time. The CB10 black finish is chemically bonded directly to the stainless steel surface. It is not a coating, it's integral to the bolt itself. If you need a hex head set screw that stays black, stays corrosion-free and stays looking great for years, these bolts are right up your street.
DIN 933 Specification Supplied to DIN 933 with metric thread, fully threaded along the entire shank. Available in lots of diameters and lengths, they're one of the widest size ranges available. Compatible with standard metric hex nuts and washers, also available in black stainless from us here at Carbolts.
Material: A2 Stainless Steel (Grade 304) Finish: CB10 Permanent Black Oxide Standard: DIN 933 Thread: Metric - fully threaded Head Style: Hexagon Drive: Spanner / socket Typical uses: Automotive builds, trailer and agricultural equipment, outdoor furniture, gates, railings, metalwork, machine frames, enclosures, brackets, general engineering and industrial assemblies.
Click to download the Hexagon Head Set Screw / Bolt technical information sheet.
