Custom Set Screws Allen Key Drive Cone Point Stainless Steel 316 Passivated For Marine Equipment
What is a set screw?
A set screw is a fully threaded fastener with no protruding head. It is designed to lock two components together by applying pressure through its tip. The tip – or point – determines how it grips the mating surface.
How to choose the right point type – a quick guide
| Point type | Shape | Best use |
|---|---|---|
| Cup point | Concave cup shape | General purpose. Bites into soft shafts. Most common. |
| Cone point | Sharp cone | Permanent locking. Deep bite into hard surfaces. |
| Flat point | Flat tip | Adjustable positioning. Does not mar the surface. |
| Dog point | Small cylindrical tip | Locates into a mating hole. Good for shaft alignment. |
| Half dog point | Short cylindrical tip | Light locating. Quick engagement. |
| Oval point | Rounded tip | Low friction. Ideal for frequent adjustment. |
| Knurled cup point | Cup with knurls | Extra grip on soft materials like aluminum or plastic. |
Drive types
| Drive | Tool required | Best for |
|---|---|---|
| Hex socket | Allen key / hex key | High torque, recessed access |
| Slotted | Flat blade screwdriver | Light duty, low torque |
| Torx | Torx driver | Maximum torque, no cam‑out |
Materials and strength
| Material | Strength grade | Best for |
|---|---|---|
| 304 stainless steel | Class 8.8 | General corrosion protection |
| 316 stainless steel | Class 10.9 | Marine, saltwater, chemicals |
| Alloy steel | Class 12.9 | High strength, heavy duty |
| Carbon steel | Class 4.8 / 6.8 / 8.8 | Cost effective, light to medium duty |
| Brass | – | Decorative, non‑magnetic, low torque |
Standard sizes available
| Metric | Inch |
|---|---|
| M2, M2.5, M3, M4, M5, M6, M8, M10, M12 | 4-40, 6-32, 8-32, 10-24, 10-32, 1/4-20, 5/16-18 |
Surface finishes
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Black oxide – matte black, mild corrosion protection
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Zinc plated – cost effective rust protection
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Nickel plated – decorative, good corrosion resistance
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Passivated – for stainless steel, maximum corrosion resistance
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Plain – natural finish
Typical applications
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Locking pulleys, gears, and sprockets to shafts
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Positioning collars and bushings
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Adjusting cam followers and linkages
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Securing handles, knobs, and levers
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Industrial machinery, automotive, marine, and electronics
Custom set screws
Need a non‑standard length, special point type, or unusual material? Send us your drawing. We produce custom set screws exactly to your specification. OEM orders welcome.
Quality assurance
ISO 9001 and ISO 10012 certified. Every batch inspected – thread gauging, hardness testing, point geometry check.
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Fully threaded – no protruding head
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Cup point, cone point, flat point, dog point, oval point, knurled cup point
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Hex socket and slotted drive options
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Stainless steel 304, 316, alloy steel Class 12.9, carbon steel
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Metric M3 to M12, Class 8.8 to 12.9
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Ideal for shafts, collars, gears, pulleys, cam followers
YH Fastener has been making precision fasteners since 1998. We specialize in set screws, self tapping screws, machine screws, shoulder screws, and custom fasteners. ISO 9001 and ISO 10012 certified. Factory direct. Ship to over 60 countries.
